Key Points
- A few major contractors lead the most high-impact U.S. construction projects.
- These firms shape U.S. cities, infrastructure & long-term economic growth.
- Rankings are based on project scale, workforce size & industry presence.
The construction industry in the United States is vast, complex, and constantly evolving. From towering skyscrapers and transport networks to hospitals, energy plants, and data centres, a handful of major contractors sit at the heart of the country’s most ambitious projects.
The companies we discuss in this article are typically ranked by independent industry bodies based on overall scale, project scope, workforce size, and long-term involvement in large, technically demanding builds.
Who Are the Top 10 U.S. Construction Companies?
The following table illustrates the list of the largest construction companies in the U.S. They are introduced as well-known leaders in the industry because of their extent, experience, and continuous presence:
| Company Name | Headquarters | Core Strengths |
| Reston, Virginia | Infrastructure, energy, engineering | |
| Turner Construction | New York, New York | Commercial, healthcare, high-rise |
| Fluor Corporation | Irving, Texas | EPC, industrial, energy |
| Kiewit Corporation | Omaha, Nebraska | Infrastructure, mining, civil works |
| AECOM | Los Angeles, California | Infrastructure, consulting, engineering |
| Whiting-Turner | Baltimore, Maryland | Commercial and institutional buildings |
| STO Building Group | New York, New York | Construction services and management |
| Skanska USA | New York, New York | Civil infrastructure and development |
| DPR Construction | Redwood City, California | Data centres, life sciences |
| Clark Construction Group | McLean, Virginia | Concrete, commercial, civil projects |
Source: Annual contractor rankings published by Engineering News-Record (ENR)
Here are the biggest Construction Companies:
1. Bechtel
Bechtel is often regarded as the largest construction company in the U.S. It has built everything from highways and rail systems to power plants and major energy facilities. Known for taking on complex, high-risk projects, the firm has a strong global footprint and decades of experience in engineering-led construction.
2. Turner Construction
Turner is a familiar name in major U.S. cities, in commercial and healthcare construction. The company is well known for delivering landmark office towers, sports arenas, and advanced medical facilities. It often works closely with architects and developers from early design stages.
3. Fluor Corporation
Fluor operates as a major EPC (engineering, procurement, and construction) contractor. Its work spans energy, chemicals, industrial manufacturing, and infrastructure. The company is respected for its technical depth and ability to manage large, multi-disciplinary projects.
4. Kiewit Corporation
Employee-owned and infrastructure-focused, Kiewit has built a strong reputation in transportation, water, power, and mining projects. Its hands-on approach and self-performing model allow it to maintain tight control over quality and delivery.
5. AECOM
AECOM stands out for its combination of construction, design, consulting, and programme management. The firm plays a key role in major public infrastructure schemes. This includes roads, transit systems, and urban development projects across the U.S.
To conclude, while rankings may shift depending on criteria such as sector focus or workforce size, these ten companies consistently sit at the top of the U.S. construction industry.
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What unites them is their ability to deliver large-scale, complex projects that shape cities, infrastructure, and industries across the country.
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