America’s highways, skylines, dams, and water treatment systems exist because of the precision with which they are designed, planned, and built by Civil Engineering Companies in the USA. These companies turn land into cities, old bridges into new ones and polluted ground into viable development sites. Choosing the right engineering partner in 2026 is even more important if you are a city, private developer or federal agency.
The amount of infrastructure investment is unprecedented, climate resilience requirements are becoming even stricter, and digital engineering tools are reshaping schedules. This guide lists and evaluates the best Civil Engineering Companies in USA, according to specialization, to help you find the right company for your project, budget and technical specifications.
What Civil Engineering Companies Actually Do (Quick Primer)
- Plan & Design Infrastructure: They plan and design roads, bridges, airports, rail corridors and transit systems from conceptual to final engineering drawings.
- Designed Water Systems: They design drinking water systems, wastewater treatment plants, storm water drainage systems and flood control barriers.
- Structural Engineering: They design load-bearing structures for skyscrapers, stadiums, hospitals and other large public structures.
- Geotechnical Assessment: They test soil, map seismic areas, design foundations and stabilize slopes for safe construction.
- Environmental Compliance: They manage contaminated site remediation, environmental permitting and mitigation of ecological impacts for large builds.
- Construction Management: They are responsible for delivering the project, coordinating with the contractors, controlling the budget, and ensuring the project is built correctly at all the construction stages.
Top Civil Engineering Companies in USA — Quick Comparison Table
| Sr No | Company | Core Specialty | HQ State | Est. Revenue | Client Rating | Best Suited For |
| 1 | AECOM | Highway, transit, aviation | Texas | $16.1B | 4.4/5 | Mega infrastructure programs |
| 2 | Jacobs Solutions | Rail, smart mobility | Texas | $12.0B | 4.5/5 | Tech-driven transport design |
| 3 | WSP USA | Bridges, tunnels, marine | New York | $10.6B | 4.3/5 | Complex underground works |
| 4 | Burns & McDonnell | Energy, aviation, transport | Missouri | $6.5B | 4.6/5 | Integrated design-build projects |
| 5 | Stantec | Hydropower, river restoration | Colorado | $5.1B | 4.5/5 | Multi-disciplinary water projects |
| 6 | Tetra Tech | Water, environmental | California | $4.5B | 4.6/5 | Water scarcity & clean water |
| 7 | Black & Veatch | Wastewater, green energy | Kansas | $4.3B | 4.4/5 | Utility & energy transformation |
| 8 | Parsons Corporation | Defense, smart highways | Virginia | $3.4B | 4.3/5 | Cyber-secure infrastructure |
| 9 | HDR, Inc. | Freight rail, multimodal hubs | Nebraska | $3.1B | 4.4/5 | Employee-owned infrastructure |
| 10 | HNTB Corporation | Mega bridges, toll systems | Missouri | $2.5B | 4.5/5 | Complex design-build execution |
| 11 | Kimley-Horn | Traffic ops, land planning | N. Carolina | $1.8B | 4.7/5 | Fast permitting & smart cities |
| 12 | Michael Baker Intl. | Bridges, disaster recovery | Pennsylvania | $1.5B | 4.4/5 | Emergency infrastructure response |
| 13 | CDM Smith | Drinking water, remediation | Massachusetts | $1.4B | 4.5/5 | Safe water grids & cleanup |
| 14 | Terracon Consultants | Soil testing, diagnostics | Kansas | $1.1B | 4.4/5 | Nationwide geotechnical testing |
| 15 | STV Group | Institutional, rail terminals | New York | $600M | 4.4/5 | Public transit structures |
| 16 | IMEG Corp | Healthcare, high-rise, education | Illinois | $450M | 4.5/5 | Seismic & medical facility design |
| 17 | Brown & Caldwell | Water reclamation, biosolids | California | $450M | 4.6/5 | Full-cycle water treatment |
| 18 | Langan Engineering | Deep foundations, brownfields | New Jersey | $400M | 4.6/5 | Urban supertall foundations |
| 19 | Carollo Engineers | Municipal water, reuse systems | Arizona | $380M | 4.7/5 | Water-only specialist districts |
| 20 | Geosyntec Consultants | Geo-environmental, landfill | Florida | $380M | 4.5/5 | Industrial waste containment |
| 21 | Thornton Tomasetti | Supertall, forensic engineering | New York | $350M | 4.6/5 | Iconic high-rise structural design |
| 22 | Haley & Aldrich | Underground, env. liability | Massachusetts | $220M | 4.5/5 | Soil stabilization & cleanup |
| 23 | Walter P Moore | Stadiums, tensile roofs | Texas | $180M | 4.7/5 | Sports venue structural design |
| 24 | SGH | Concrete rehab, enclosures | Massachusetts | $160M | 4.6/5 | Historic structural restoration |
| 25 | Shannon & Wilson | Landslide, seismic studies | Washington | $95M | 4.7/5 | Pacific Northwest geotechnics |
| 26 | MKA | Seismic design, towers | Washington | $90M | 4.8/5 | Performance-based seismic design |
| 27 | Schnabel Engineering | Dam safety, geostructural | Virginia | $85M | 4.6/5 | Reservoir & levee engineering |
| 28 | Arcadis (US) | Flood control, water resilience | Colorado | $4.0B | 4.4/5 | Coastal climate adaptation |
| 29 | Arup (US) | Sustainable structures, transit | New York | $2.8B | 4.7/5 | Landmark sustainable buildings |
| 30 | Fugro USA | Offshore geotechnics | Texas | $2.5B | 4.5/5 | Offshore wind & marine surDetai |
Top 25 Civil Engineering Companies in USA (2026) — Full Profiles
A) Transportation & Infrastructure Engineering Firms
1. AECOM
| Detail | Information |
| Headquarters & Founded Year | Dallas, Texas — Founded 1990 |
| Specialty / Discipline Focus | Highway design, transit planning, aviation, civil construction management |
| Estimated Annual Revenue | ~$16.1 billion (FY 2025) |
| Employee Count | ~51,000 global professionals |
| Notable / Landmark Projects | One World Trade Center, JFK Airport Modernization Program |
| Service Regions Covered | Worldwide — strong North American presence across all 50 states |
| Official Website | http://www.aecom.com |
| Average Client Rating | 4.4 / 5 |
AECOM is the leading Civil Engineering Company in the USA and has a global presence in the Highway, Transportation, Aviation and Construction Management sectors. The company’s competitive strength comes from its one-stop solution of a digital engineering platform, which embeds BIM, AI-driven design and ESG compliance. AECOM’s proven public-private partnership management expertise is a positive for clients. Its unique expertise ranges from smart corridors for transportation, to resilient airport assets, to mobility networks that welcome millions of commuters every day with measurable efficiency and safety.
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2. Jacobs Solutions Inc.
| Detail | Information |
| Headquarters & Founded Year | Dallas, Texas — Founded 1947 |
| Specialty / Discipline Focus | High-speed rail, smart mobility systems, aviation, automated highways |
| Estimated Annual Revenue | ~$12.0 billion (FY 2025) |
| Employee Count | 43,000+ professional staff worldwide |
| Notable / Landmark Projects | California High-Speed Rail Project, Sydney Metro Northwest |
| Service Regions Covered | National and international — 50+ countries worldwide |
| Official Website | http://www.jacobs.com |
| Average Client Rating | 4.5 / 5 |
Among the most forward-looking Civil Engineering firms in the USA are Jacobs Solutions, who help implement predictive AI alongside physical management of civil assets, increasing the lifespan of projects and minimizing life-cycle costs. In dense urban corridors and inter-urban transport networks, they stand out due to their specialization in high speed rail and smart mobility planning. Accelerated delivery pipelines, lower structural overhead, and data-driven decision making at each stage of the project, from the feasibility stage to final delivery and handover, give clients measurable growth benefits.
3. WSP USA
| Detail | Information |
| Headquarters & Founded Year | New York City, New York — Founded 1885 |
| Specialty / Discipline Focus | Bridge engineering, underground tunneling, marine transit infrastructure |
| Estimated Annual Revenue | ~$10.6 billion (global, FY 2025) |
| Employee Count | 10,500+ US-based personnel |
| Notable / Landmark Projects | New York City Subway Extensions, Gordie Howe International Bridge |
| Service Regions Covered | All 50 US states — strong international presence |
| Official Website | http://www.wsp.com |
| Average Client Rating | 4.3 / 5 |
WSP USA has 140 years of engineering expertise to the most complex transit problems in the country. It is unique from most Civil Engineering Companies in USA for its special expertise in deep earth tunneling, iconic bridge and marine infrastructure design. WSP builds durable transport corridors, with structural virtualization and sustainable material science, the systems adapt to the new environmental standards of the modern era. WSP’s geotechnical-structural integration model offers clients more sustainable public infrastructure at lower life-cycle maintenance costs, and fewer redesign cycles.
4. Kimley-Horn
| Detail | Information |
| Headquarters & Founded Year | Raleigh, North Carolina — Founded 1967 |
| Specialty / Discipline Focus | Roadway design, traffic engineering, intelligent transportation systems, land development |
| Estimated Annual Revenue | ~$1.8 billion (FY 2025) |
| Employee Count | ~7,500 employees across 100+ US offices |
| Notable / Landmark Projects | Las Vegas Strip Traffic Masterplan, Tampa Bay Regional Transit Study |
| Service Regions Covered | Coast-to-coast United States — 100+ office locations |
| Official Website | http://www.kimley-horn.com |
| Average Client Rating | 4.7 / 5 |
Kimley-Horn’s high-end reputation among Civil Engineering Companies in the USA is built on a culture of prioritizing the client and consistently giving them faster permits, smarter traffic solutions, and smooth regulatory approvals. Intelligent transportation systems and commercial land planning represent the firm’s specialty, and the firm is the firm of choice for both fast-growing municipalities and private developers. Combined with its fast-track leadership development and embedded profit-sharing arrangement, it’s no wonder clients love it, and employees are drawn to a career at the company, which leads to project results that are consistently excellent.
5. HDR, Inc.
| Detail | Information |
| Headquarters & Founded Year | Omaha, Nebraska — Founded 1917 |
| Specialty / Discipline Focus | Freight rail, highway intersections, multimodal transit hub design |
| Estimated Annual Revenue | ~$3.1 billion (FY 2025) |
| Employee Count | ~12,000 technical specialists |
| Notable / Landmark Projects | Hoover Dam Bypass Bridge, Port of Seattle Intermodal Hub |
| Service Regions Covered | Extensive North American coverage — select international projects |
| Official Website | http://www.hdrinc.com |
| Average Client Rating | 4.4 / 5 |
One of HDR’s most important competitive strengths as a Civil Engineering Company in the USA is its 100% employee-owned model, which puts each employee in the driver seat for the quality of his or her projects and the results of work for clients. The company’s unique expertise is in the design of multimodal hubs that integrate freight rail, roadway and pedestrian systems into efficient, effective city networks. The growth of HDR is directly dependent upon their singular capacity to aggregate a variety of public infrastructure funding streams as well as their capacity to design solutions.
6. HNTB Corporation
| Detail | Information |
| Headquarters & Founded Year | Kansas City, Missouri — Founded 1914 |
| Specialty / Discipline Focus | Mega-bridge design, toll road systems, aviation complex planning |
| Estimated Annual Revenue | ~$2.5 billion (FY 2025) |
| Employee Count | 6,200+ specialized engineering professionals |
| Notable / Landmark Projects | LAX Airport Terminal Upgrades, Louisville-Southern Indiana Ohio River Bridges |
| Service Regions Covered | Comprehensive nationwide US operations |
| Official Website | http://www.hntb.com |
| Average Client Rating | 4.5 / 5 |
For over 100 years, HNTB has been perfecting an art of complex bridge design and toll infrastructure, and continues to be one of the most trusted Civil Engineering Companies in USA for landmark transportation projects. With demanding project management procedures, it reduces construction delays, enabling clients to manage their budget and schedule with confidence on multi-billion dollar projects. Throughput, accident avoidance and life extension of assets are all achieved by converting outdated concrete infrastructure to a smart, digitalized traffic system.
7. Parsons Corporation
| Detail | Information |
| Headquarters & Founded Year | Chantilly, Virginia — Founded 1944 |
| Specialty / Discipline Focus | Defense infrastructure, cyber-secure transit, connected-vehicle smart highways |
| Estimated Annual Revenue | ~$3.4 billion (FY 2025) |
| Employee Count | ~11,000 technology and engineering professionals |
| Notable / Landmark Projects | Newark Liberty International Airport Terminal A, Saudi NEOM Smart City Infrastructure |
| Service Regions Covered | Nationwide US and international markets |
| Official Website | http://www.parsons.com |
| Average Client Rating | 4.3 / 5 |
Parsons Corporation is the sole Civil Engineering Company in the USA that works in a niche space between heavy civil infrastructure and cyber security. It excels in connected-vehicle systems, smart tolling and federally secure defense facilities, and offers tremendous growth prospects for public agencies transitioning to software-based infrastructure. Engineered to handle physical structural degradation and new digital threats, Parsons is the quint partner for government customers who require unprecedented levels of operational security as well as outstanding construction quality and performance.
8. Burns & McDonnell
| Detail | Information |
| Headquarters & Founded Year | Kansas City, Missouri — Founded 1898 |
| Specialty / Discipline Focus | Energy transmission, aviation infrastructure, transportation engineering |
| Estimated Annual Revenue | ~$6.5 billion (FY 2025) |
| Employee Count | 13,000+ employee-owners across 70+ offices |
| Notable / Landmark Projects | Kansas City International Airport (KCI), Texas Power Grid Reinforcement |
| Service Regions Covered | Nationwide with strategic international offices |
| Official Website | http://www.burnsmcd.com |
| Average Client Rating | 4.6 / 5 |
Burns & McDonnell’s 100% employee-ownership structure fuels a culture of accountability that sets it apart from most Civil Engineering firms in the USA. Under one single roof, the firm brings together engineering, architecture, construction and commissioning, thus avoiding expensive handoffs and substantially lowering the project risk for the client. It focuses on energy transport facilities, airport construction and extensive transportation projects that demand precise coordination between all disciplines.
B) Water, Environmental & Hydropower Engineering Firms
9. Tetra Tech, Inc.
| Detail | Information |
| Headquarters & Founded Year | Pasadena, California — Founded 1966 |
| Specialty / Discipline Focus | Stormwater management, desalinization plants, reservoir water modeling |
| Estimated Annual Revenue | ~$4.5 billion (FY 2025) |
| Employee Count | ~28,000 global environmental and engineering experts |
| Notable / Landmark Projects | US Army Corps of Engineers Water Programs, Clean Water State Revolving Fund Projects |
| Service Regions Covered | Worldwide — heavy US federal and municipal focus |
| Official Website | http://www.tetratech.com |
| Average Client Rating | 4.6 / 5 |
Tetra Tech is the leading Civil Engineering Companies in the USA, offering innovative solutions to address the pressing issue of water scarcity through automated desalinization and advanced aquifer recharge techniques. The company’s industry-leading data analytics platform enables regional water distribution networks to be optimized, as municipalities can reduce their operational waste and enhance service reliability. Because of Tetra Tech’s expertise in ecological conservation integration, large scale civil water defenses continue to safeguard human communities and natural ecosystems.
10. Stantec
| Detail | Information |
| Headquarters & Founded Year | Edmonton, Canada — US HQ: Broomfield, Colorado; Founded 1954 |
| Specialty / Discipline Focus | Hydropower generation, river restoration, wetland mitigation engineering |
| Estimated Annual Revenue | ~$5.1 billion (FY 2025) |
| Employee Count | 25,000+ technical specialists worldwide |
| Notable / Landmark Projects | Stantec Tower Urban Drainage, Pacific Northwest Salmon River Restoration |
| Service Regions Covered | Extensive North American presence — strong US regional offices |
| Official Website | http://www.stantec.com |
| Average Client Rating | 4.5 / 5 |
Stantec’s water ecosystem management philosophy positions it as one of the most comprehensive Civil Engineering firms in the USA for its water hydropower and environmental design services. It has a bio-engineering specialization to restore degraded rivers and wetlands and at the same time develop reliable hydropower generation capacity. The company’s extensive multi-disciplinary framework integrates water resources management into the creation and development of civil projects, providing cohesive project solutions that lessen the headaches of coordinating contractors.
11. Black & Veatch
| Detail | Information |
| Headquarters & Founded Year | Overland Park, Kansas — Founded 1915 |
| Specialty / Discipline Focus | Wastewater reclamation, zero-emission hydropower, green utility grid systems |
| Estimated Annual Revenue | ~$4.3 billion (FY 2025) |
| Employee Count | ~10,000 corporate and field engineering staff |
| Notable / Landmark Projects | Singapore NEWater Advanced Treatment Plant, US Army Corps Hydropower Upgrades |
| Service Regions Covered | Nationwide US — strong international project portfolio |
| Official Website | http://www.bv.com |
| Average Client Rating | 4.4 / 5 |
Black & Veatch stands out as the premier firm among Civil Engineering Companies in USA when it comes to clients who want to modernize old utilities into sustainable and carbon-free systems. The company’s research in advanced wastewater reclamation transforms wastewater into green business opportunities and delivers exceptional long-term growth opportunities for municipalities and industrial clients. Its modular water purification systems and smart industrial filtration technologies provide scalable infrastructure that ensures reliable and predictable performance while addressing increasingly stringent environmental regulations for all sizes of utilities.
12. CDM Smith
| Detail | Information |
| Headquarters & Founded Year | Boston, Massachusetts — Founded 1947 |
| Specialty / Discipline Focus | Drinking water safety, environmental site remediation, smart water distribution grids |
| Estimated Annual Revenue | ~$1.4 billion (FY 2025) |
| Employee Count | 5,000+ engineers, scientists, and planners |
| Notable / Landmark Projects | DC Clean Rivers Combined Sewer Overflow Project, Flint Michigan Water System Recovery |
| Service Regions Covered | National presence across the entire United States |
| Official Website | http://www.cdmsmith.com |
| Average Client Rating | 4.5 / 5 |
CDM Smith is a reputable private company in the Civil Engineering field in USA, providing innovative water treatment and deep environmental cleanup services to municipalities and utilities, as well as federal clients. CDM Smith identifies potential contamination risks at an early stage of the process in a costly public health emergency using advanced 3D pipeline stress modelling. The enormous growth advantages of this predictive engineering approach mean that there is no need to save cities million-wollar emergency repair budgets.
13. Brown and Caldwell
| Detail | Information |
| Headquarters & Founded Year | Walnut Creek, California — Founded 1947 |
| Specialty / Discipline Focus | Pure water reclamation, biosolid recycling, environmental regulatory compliance |
| Estimated Annual Revenue | ~$450 million (FY 2025) |
| Employee Count | 1,900+ environmental engineering specialists |
| Notable / Landmark Projects | San Jose Water Pollution Control Plant, Orange County Water Reclamation Program |
| Service Regions Covered | All major US markets — particularly strong in California and Western states |
| Official Website | http://www.brownandcaldwell.com |
| Average Client Rating | 4.6 / 5 |
Brown and Caldwell’s specific focus on water and environmental engineering also ensures a depth of regulatory expertise and technical accuracy that is unattainable for generalist Civil Engineering Companies in the USA. It is a speciality that transforms the biosolid waste into green electricity in energy neutral water treatment plants, leading to a significant reduction in the utility operating costs. Brown and Caldwell’s simplified permit navigation and extensive agency connections provide their clients tangible growth benefits.
14. Carollo Engineers
| Detail | Information |
| Headquarters & Founded Year | Phoenix, Arizona — Founded 1933 |
| Specialty / Discipline Focus | Municipal water system design, water reuse, pump station engineering |
| Estimated Annual Revenue | ~$380 million (FY 2025) |
| Employee Count | ~1,300 water engineering professionals |
| Notable / Landmark Projects | Phoenix Regional Water Treatment Plant, San Diego Pure Water Program |
| Service Regions Covered | Dominant in Western and Southern United States |
| Official Website | http://www.carollo.com |
| Average Client Rating | 4.7 / 5 |
Carollo Engineers is the largest US consulting firm dedicated to water and wastewater engineering, boasting unmatched domain expertise. It’s highly reliable and safe because of its state-of-the-art ultrafiltration and chemical disinfection technology, which can keep water supplied by the municipal system completely safe and reliable even during the most severe regional multi-year droughts in water-stressed western states. Carollo’s ability to deliver pump station designs quickly and affordably makes it the leading pure water infrastructure specialist among Civil Engineering Companies in USA.
C) Structural Engineering Firms
15. IMEG Corp
| Detail | Information |
| Headquarters & Founded Year | Rock Island, Illinois — Founded 1920 |
| Specialty / Discipline Focus | Healthcare facility engineering, educational campuses, high-rise commercial structures |
| Estimated Annual Revenue | ~$450 million (FY 2025) |
| Employee Count | ~2,600 structural and MEP design professionals |
| Notable / Landmark Projects | Regional Medical Center Campus Structural Design, University High-Rise Dormitory |
| Service Regions Covered | Broad multi-state regional coverage — 50+ US office locations |
| Official Website | http://www.imegcorp.com |
| Average Client Rating | 4.5 / 5 |
IMEG Corp is a trusted Civil Engineering Company in the USA for complex institutional structural design and especially healthcare campuses that must meet strict seismic performance and operational continuity requirements. A Building Information Modeling integration, meanwhile, maximizes structural stability and minimizes material use at the same time, cutting construction time and long-term operating costs for facilities. One of IMEG’s growth benefits for clients is the ability to design an adaptable structural system that will allow for future building additions.
16. STV Group, Incorporated
| Detail | Information |
| Headquarters & Founded Year | New York City, New York — Founded 1912 |
| Specialty / Discipline Focus | Institutional building structures, rail station terminals, reinforced concrete frameworks |
| Estimated Annual Revenue | ~$600 million (FY 2025) |
| Employee Count | ~3,000 structural engineering and planning professionals |
| Notable / Landmark Projects | Grand Central Madison Terminal (East Side Access), Philadelphia Station Expansion |
| Service Regions Covered | National footprint across all major US urban markets |
| Official Website | http://www.stvinc.com |
| Average Client Rating | 4.4 / 5 |
With a history of 112 years, STV Group is one of the most seasoned Civil Engineering firms in the USA to have experience in the design of structures for high-volume, public spaces. It specializes in reinforced concrete and steel superstructures, and creates safe, durable structures for rail terminals and institutional buildings that serve tens of thousands of people each day. The firm’s multi-disciplinary approach is resulting in significant growth benefits as they combine structural engineering accuracy with architectural excellence while operating with ease and consistency through complex urban building codes and producing iconic public spaces within budget.
17. Thornton Tomasetti
| Detail | Information |
| Headquarters & Founded Year | New York City, New York — Founded 1956 |
| Specialty / Discipline Focus | Supertall skyscraper engineering, forensic structural analysis, kinetic building facades |
| Estimated Annual Revenue | ~$350 million (FY 2025) |
| Employee Count | 1,500+ creative structural and forensic engineers |
| Notable / Landmark Projects | Comcast Technology Center, 432 Park Avenue Tower, 1 World Trade Center Analysis |
| Service Regions Covered | Major US cities and international hubs across 20+ countries |
| Official Website | http://www.thorntontomasetti.com |
| Average Client Rating | 4.6 / 5 |
Thornton Tomasetti is a world-class innovator in the field of forensic engineering analysis and supertall structural design and is regarded as one of the most innovative Civil Engineering Companies in USA. Its digital twin modelling capability enables developers to virtually test the limits and performance of structures and materials in a safe environment before committing to construction, providing an enormous benefit in risk identification and performance testing, well before it is built. The company’s expertise in kinetic facades and the most efficient use of materials allows for gravity-defying architecture that remains structurally sound, eco-friendly, and cost-effective over the entire life cycle.
18. Walter P Moore
| Detail | Information |
| Headquarters & Founded Year | Houston, Texas — Founded 1931 |
| Specialty / Discipline Focus | Sports stadiums, entertainment arenas, lightweight long-span tensile roof systems |
| Estimated Annual Revenue | ~$180 million (FY 2025) |
| Employee Count | ~800 structural engineering specialists |
| Notable / Landmark Projects | SoFi Stadium Structural Canopy, AT&T Stadium Roof Analysis |
| Service Regions Covered | Nationwide US — select international stadium projects |
| Official Website | http://www.walterpmoore.com |
| Average Client Rating | 4.7 / 5 |
Walter P Moore is a leading expert in the field of sports venue and entertainment complex structural design among Civil Engineering Companies in the USA. Its expertise in long-span tensile roof structures and dynamic wind load analysis provides the venue owner with the most space for the most entertainment at the lowest structure price, which is a significant growth advantage for developers with strict budgets for entertainment. Its structural specialty enables iconic public gathering places to be resilient to extreme weather, to carry high dynamic loading by the crowds that gather there.
19. Magnusson Klemencic Associates (MKA)
| Detail | Information |
| Headquarters & Founded Year | Seattle, Washington — Founded 1920 |
| Specialty / Discipline Focus | Performance-Based Seismic Design, high-density residential and commercial towers |
| Estimated Annual Revenue | ~$90 million (FY 2025) |
| Employee Count | 185+ elite structural engineering professionals |
| Notable / Landmark Projects | Salesforce Tower (San Francisco), The Eighth (Seattle), Wilshire Grand Center |
| Service Regions Covered | Global iconic project work from US-based offices |
| Official Website | http://www.mka.com |
| Average Client Rating | 4.8 / 5 |
MKA receives the top client rating out of all the Civil Engineering firms in the USA profiled here and it is not hard to see why. The industry-defining Performance Based Seismic Design methodology provides architects and developers unprecedented structural flexibility that lowers the consumption of raw steel by significantly permitting slimmer, taller towers, a direct and measurable growth benefit. With a strong focus on high-rise structures and optimizing cores to withstand violent seismic forces and high altitude wind oscillations, MKA is the company of choice for developers seeking iconic supertall projects in earthquake prone, urban markets worldwide.
20. Simpson Gumpertz & Heger (SGH)
| Detail | Information |
| Headquarters & Founded Year | Boston, Massachusetts — Founded 1956 |
| Specialty / Discipline Focus | Structural rehabilitation, building enclosure design, reinforced concrete diagnostics |
| Estimated Annual Revenue | ~$160 million (FY 2025) |
| Employee Count | ~650 structural and forensic engineering experts |
| Notable / Landmark Projects | MIT Great Dome Historic Restoration, Harvard Science Center Enclosure |
| Service Regions Covered | Nationwide across the United States |
| Official Website | http://www.sgh.com |
| Average Client Rating | 4.6 / 5 |
SGH combines the skills of building enclosure engineering and concrete structural diagnostics to offer a niche and very valuable position in USA’s Civil Engineering Companies. Its specialty is in adding years to the life of an existing or important building, offering clients the opportunity to realize growth without the high cost of demolition and total replacement. SGH employs advanced computer simulations and combined with testing of authentic materials, finds moisture pathways, concrete delamination and structural fatigue before they become safety concerns or expensive emergency repairs.
D) Geotechnical Engineering Firms
21. Langan Engineering
| Detail | Information |
| Headquarters & Founded Year | Parsippany, New Jersey — Founded 1970 |
| Specialty / Discipline Focus | Deep foundation engineering, brownfield site remediation, complex urban excavation |
| Estimated Annual Revenue | ~$400 million (FY 2025) |
| Employee Count | 1,500+ land development and geotechnical consultants |
| Notable / Landmark Projects | Hudson Yards Foundation System, World Trade Center Site Redevelopment |
| Service Regions Covered | Nationwide US — select global project support |
| Official Website | http://www.langan.com |
| Average Client Rating | 4.6 / 5 |
Langan Engineering is one of the most in-demand Civil Engineering Companies USA for urban super tall structure construction, providing the necessary geotech solutions to guarantee the safe and reliable development of these projects. Its niche in deep foundation and brownfield remediation transforms contaminated and structurally difficult properties into top quality development-ready land, offering huge development advantage to real estate investors. Langan’s exact soil-structure interaction mapping helps lessen excavation risk, avoid unexpected construction expenses, and fast-track permit process in the toughest waterfronts in the metro area.
22. Geosyntec Consultants
| Detail | Information |
| Headquarters & Founded Year | Boca Raton, Florida — Founded 1983 |
| Specialty / Discipline Focus | Geo-environmental engineering, landfill containment liners, groundwater contamination tracking |
| Estimated Annual Revenue | ~$380 million (FY 2025) |
| Employee Count | ~2,000 environmental scientists and geotechnical engineers |
| Notable / Landmark Projects | Subsurface Contamination Barrier Design, EPA Superfund Site Remediation Programs |
| Service Regions Covered | Comprehensive North American project network |
| Official Website | http://www.geosyntec.com |
| Average Client Rating | 4.5 / 5 |
Geosyntec Consultants is also at the very leading edge of geo-environmental engineering, assisting heavy industrial clients with the environmental liabilities which most Civil Engineering Companies in USA are unable to control. Its innovative geosynthetic clay liner solutions and bio-remediation processes neutralize high levels of soil toxicity, safeguard underlying groundwater sources and allow for complete adherence to environmental regulations in major construction initiatives.
Geosyntec’s proactive liability mitigation strategies provide clients with substantial growth benefits, transforming high-risk industrial brownfields into insurable, compliant assets suitable for redevelopment.
23. Shannon & Wilson, Inc.
| Detail | Information |
| Headquarters & Founded Year | Seattle, Washington — Founded 1954 |
| Specialty / Discipline Focus | Landslide risk stabilization, seismic microzonation mapping, rail tunnel geotechnics |
| Estimated Annual Revenue | ~$95 million (FY 2025) |
| Employee Count | 350+ geotechnical and geological specialists |
| Notable / Landmark Projects | Alaskan Way Viaduct Geotechnical Investigation, SR 99 Tunnel Soil Study |
| Service Regions Covered | Dominant Pacific Northwest — regional US presence |
| Official Website | http://www.shannonwilson.com |
| Average Client Rating | 4.7 / 5 |
Shannon & Wilson’s decades of Pacific Northwest geotechnical experience offers a resource that is irreplaceable in seismically active areas and topographically complex regions among Civil Engineering Companies in the USA. The firm’s specialty in landslide stabilization and seismic microzonation mapping means that transit authorities can avoid billion dollar delays to a project due to catastrophic landslide failures before any drilling takes place. The exact localization of the fault line and the stabilization of the slopes of tunnels and railways on such difficult terrain in America sets up the construction corridor as safe as possible.
24. Haley & Aldrich
| Detail | Information |
| Headquarters & Founded Year | Burlington, Massachusetts — Founded 1957 |
| Specialty / Discipline Focus | Underground geotechnical engineering, corporate environmental liability, soil pre-treatment |
| Estimated Annual Revenue | ~$220 million (FY 2025) |
| Employee Count | ~900 geotechnical and environmental consulting experts |
| Notable / Landmark Projects | Boston Central Artery/Tunnel (Big Dig) Foundation Work, Logan Airport Soil Studies |
| Service Regions Covered | Nationwide US geotechnical coverage |
| Official Website | http://www.haleyaldrich.com |
| Average Client Rating | 4.5 / 5 |
Haley & Aldrich’s expertise and capabilities make it one of the most trusted Civil Engineering firms in the USA for brownfield and contaminated site redevelopment, where they solve the most challenging underground engineering problems and minimize long-term environmental liabilities for corporations. The company’s improvements are most clearly evident in its ability to add value by turning high-risk urban properties with poor soils into building-ready parcels that are fully insurable.
Its groundwater filtering and soil stabilisation systems provide developers with the building blocks of confidence to pursue profitable projects in areas traditionally considered problematic to develop.
25. Terracon Consultants, Inc.
| Detail | Information |
| Headquarters & Founded Year | Olathe, Kansas — Founded 1965 |
| Specialty / Discipline Focus | Soil mechanics testing, material diagnostics, environmental site assessments |
| Estimated Annual Revenue | ~$1.1 billion (FY 2025) |
| Employee Count | 6,000+ geotechnical and environmental professionals |
| Notable / Landmark Projects | National Highway Soil Optimization Program, Large Industrial Facility Foundation Studies |
| Service Regions Covered | 150+ office locations across the entire United States |
| Official Website | http://www.terracon.com |
| Average Client Rating | 4.4 / 5 |
With 150+ offices across the country, Terracon’s unsurpassed geographic presence is its greatest strength for time sensitive projects, as it is the most accessible and responsive geotechnical company among Civil Engineering Companies in USA. It has a mobile drill fleet and real-time earth movement monitoring sensors that provide instant feedback about the structure, which cuts out expensive delays due to foundation uncertainties.
Clients benefit from Terracon’s quick soil and material diagnostics turnaround time for projects in all phases of the highway, commercial, and industrial development process, which helps to ensure project timelines and construction loan drawdowns are on schedule.
Best Civil Engineering Companies to Work For in 2026
- Kimley-Horn: wins industry high marks on employee satisfaction surveys year after year across the country and provides industry leading profit sharing.
- HDR and Burns & McDonnell: both 100% employee owned, with long-term employees gaining a financial stake in the performance of the company.
- MKA: offers a culture of mentorship, with engineers collaborating directly with the world’s iconic skyscrapers and high-rises from the start of their careers.
- AECOM and Jacobs Solutions: provide unparalleled global mobility, management development and rapid engineering management career pathways.
- Carollo Engineers and Brown & Caldwell: tap into the water sector for access to experts with deep domain expertise, publication opportunities, and the potential for meaningful work in the water sector.
How to Choose the Right Civil Engineering Company for Your Project
- Find specialty first: make sure the firm’s primary expertise is the same as your project (transportation, water, structural, or geotechnical) before considering anything else.
- Confirm qualifications thoroughly: State-specific PE licensing, professional insurance, bonding, and any Federal or Municipal certifications required.
- Look at similar precedents: ask for case studies of projects that have been done that are as large, as technically challenging, under similar regulations, and within similar budgets.
- Analyze digital tools and technology: inquire about BIM platforms, GIS software, real-time monitoring technology, structural analysis software that the company utilizes.
- Review references and delivery history: assess and verify with previous clients the original project time lines and budgets against what was actually delivered.
- Assess local regulatory experience: permitting processes, environmental codes, local zoning requirements are all different from state to state and from municipality to municipality, so local experience is vitally important.
Boutique & Regional Civil Engineering Firms Worth Considering
- Freese and Nichols: provides deep Texas and Oklahoma regional water and transportation infrastructure expertise and the level of service that large national firms can’t provide.
- GHD: Midwest, Gulf Coast and Pacific markets, flexible mid-size project capability, solid environmental and water engineering experience.
- Ramboll: expert in renewable energy infrastructure and environmental engineering, especially for clients who are aiming for ambitious sustainable and net zero construction projects.
- ECS Limited: Provides consistent, quick turnaround regional geotechnical testing and construction materials diagnostics throughout the Mid-Atlantic and Southeast regions of the U.S.
- Dewberry: is dedicated to floodplain management, FEMA mapping and climate resiliency planning for coastal and inland communities increasingly threatened by floods.
Civil Engineering Industry Trends Shaping 2026
- AI in Design & Maintenance: Today, AI is used to power design and maintenance, from major companies to monitor structures and schedule maintenance, to optimize designs automatically.
- Climate Resilience as a Core Requirement: Federal and municipal clients now require climate adaptive design on all new drainage, flood barrier, and transportation infrastructure.
- Modular & Prefabricated Construction: Across all project types, off-site prefabrication can reduce waste, costs up to 20% and decrease on site construction time significantly.
- Digital Twin Simulation: Companies can simulate the complete performance, load testing, and aging of materials before breaking ground, thereby lowering the risk of construction, and this is known as Digital Twin Simulation.
- Offshore Wind Infrastructure Boom: Federal offshore wind energy leasing grows quickly and rapidly, driving an urgent need for specialized marine geotechnical and structural engineering services.
- Workforce Automation Response: In the industry, the shortage of labor is driving up the use of robotic inspection, drone site surveys and AI-based structural assessment tools.
Conclusion
The Civil Engineering Companies in USA 2026 are more diverse, specialized, and technologically sophisticated than ever before in the history of the field. Whether it’s a multi-billion dollar global program for a transportation company such as AECOM and Jacobs Solutions or a niche seismic design firm like MKA, there’s a firm for every project type and budget. The profiles, ratings and comparison table in this guide should be used as a starting framework.
Check for credentials, review past project results, check for regulatory experience and always ensure that the firm’s primary expertise is truly aligned with your project’s requirements. The right civil engineering company isn’t merely finishing your project, it is safeguarding your investment, gaining community trust, and constructing infrastructure that is safe for generations to come.
FAQs
What are the largest 3 companies in the USA for Civil Engineering by revenues?
The three largest civil engineering companies in the USA based on current estimates for annual revenue in 2026 are AECOM ($16.1B), Jacobs Solutions ($12.0B) and WSP USA ($10.6B), and they are all active in dozens of countries, each with tens of thousands of engineers.
What is the number of dollars that will be paid for a civil engineering firm in the USA?
The cost of the analysis varies significantly depending on the type and size of the project (e.g., small traffic or geotechnical studies can be $5,000–$50,000, but large transportation or water infrastructure projects can cost several millions of dollars). The average price of an engineer is $150-350 per hour, in most companies.
What is the difference between a civil engineering firm and a construction company?
Civil engineering companies are responsible for drafting plans, drawings, and technical studies for infrastructure projects, as well as for analyzing and designing the necessary infrastructure to ensure that the project meets the desired goals. Building firms actually construct those designs on location.
Who are the best Civil Engineering Companies in USA for transportation?
The transportation industry is headed by AECOM, Jacobs Solutions, WSP USA, HNTB Corporation and Parsons Corporation. HNTB, Parsons is a solid contingency for public-sector clients for specialized mega-bridge and toll applications.
Are small local engineering companies preferred to national companies?
Yes — boutique firms can offer more in-depth technical expertise, more direct involvement by senior engineers and quicker turnaround than a large national firm may be able to for the right scale of work.
