United States

Top 40 largest US Companies in the Engineering & Construction industry by Market Cap

This is the list of the largest public listed companies in the Engineering & Construction industry from the United States by market capitalization with links to their reference stock.

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Top Engineering & Construction Companies from the United States as of Jan. 01, 2026

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Rank Company Market Cap (USD) Country Sector Industry
1 Quanta Services, Inc. $65.53 B United States US Industrials US Engineering & Construction
2 Comfort Systems USA, Inc. $35.41 B United States US Industrials US Engineering & Construction
3 EMCOR Group, Inc. $28.59 B United States US Industrials US Engineering & Construction
4 MasTec, Inc. $17.96 B United States US Industrials US Engineering & Construction
5 APi Group Corporation $16.21 B United States US Industrials US Engineering & Construction
6 Jacobs Engineering Group Inc. $16.07 B United States US Industrials US Engineering & Construction
7 AECOM $12.77 B United States US Industrials US Engineering & Construction
8 TopBuild Corp. $12.14 B United States US Industrials US Engineering & Construction
9 Dycom Industries, Inc. $10.42 B United States US Industrials US Engineering & Construction
10 Sterling Construction Company, Inc. $9.80 B United States US Industrials US Engineering & Construction
11 Tetra Tech, Inc. $8.84 B United States US Industrials US Engineering & Construction
12 IES Holdings, Inc. $8.08 B United States US Industrials US Engineering & Construction
13 Primoris Services Corporation $7.06 B United States US Industrials US Engineering & Construction
14 Fluor Corporation $6.74 B United States US Industrials US Engineering & Construction
15 Construction Partners, Inc. $6.34 B United States US Industrials US Engineering & Construction
16 KBR, Inc. $5.22 B United States US Industrials US Engineering & Construction
17 Granite Construction Incorporated $5.20 B United States US Industrials US Engineering & Construction
18 Argan, Inc. $4.52 B United States US Industrials US Engineering & Construction
19 Tutor Perini Corporation $3.66 B United States US Industrials US Engineering & Construction
20 MYR Group Inc. $3.52 B United States US Industrials US Engineering & Construction
21 Ameresco, Inc. $1.62 B United States US Industrials US Engineering & Construction
22 Willdan Group, Inc. $1.57 B United States US Industrials US Engineering & Construction
23 NV5 Global, Inc. $1.55 B

(July 1, 2025)

 United States US Industrials US Engineering & Construction
24 Aegion Corporation $1.52 B United States US Industrials US Engineering & Construction
25 Limbach Holdings, Inc. $919.3 M United States US Industrials US Engineering & Construction
26 Great Lakes Dredge & Dock Corporation $901.7 M United States US Industrials US Engineering & Construction
27 Infrastructure and Energy Alternatives, Inc. $667.0 M

(Oct. 1, 2022)

 United States US Industrials US Engineering & Construction
28 Atlas Technical Consultants, Inc. $471.0 M

(June 1, 2024)

 United States US Industrials US Engineering & Construction
29 Orion Group Holdings, Inc. $398.6 M United States US Industrials US Engineering & Construction
30 Concrete Pumping Holdings, Inc. $360.0 M United States US Industrials US Engineering & Construction

Top Engineering & Construction Companies from the United States as of Jan. 01, 2026

1. Quanta Services, Inc.

Company Profile: Quanta Services, Inc.
Market Cap (USD): $65.53 B
Country: United States
Sector: US Industrials
Industry: US Engineering & Construction

2. Comfort Systems USA, Inc.

Company Profile: Comfort Systems USA, Inc.
Market Cap (USD): $35.41 B
Country: United States
Sector: US Industrials
Industry: US Engineering & Construction

3. EMCOR Group, Inc.

Company Profile: EMCOR Group, Inc.
Market Cap (USD): $28.59 B
Country: United States
Sector: US Industrials
Industry: US Engineering & Construction

4. MasTec, Inc.

Company Profile: MasTec, Inc.
Market Cap (USD): $17.96 B
Country: United States
Sector: US Industrials
Industry: US Engineering & Construction

5. APi Group Corporation

Company Profile: APi Group Corporation
Market Cap (USD): $16.21 B
Country: United States
Sector: US Industrials
Industry: US Engineering & Construction

6. Jacobs Engineering Group Inc.

Company Profile: Jacobs Engineering Group Inc.
Market Cap (USD): $16.07 B
Country: United States
Sector: US Industrials
Industry: US Engineering & Construction

7. AECOM

Company Profile: AECOM
Market Cap (USD): $12.77 B
Country: United States
Sector: US Industrials
Industry: US Engineering & Construction

8. TopBuild Corp.

Company Profile: TopBuild Corp.
Market Cap (USD): $12.14 B
Country: United States
Sector: US Industrials
Industry: US Engineering & Construction

9. Dycom Industries, Inc.

Company Profile: Dycom Industries, Inc.
Market Cap (USD): $10.42 B
Country: United States
Sector: US Industrials
Industry: US Engineering & Construction

10. Sterling Construction Company, Inc.

Company Profile: Sterling Construction Company, Inc.
Market Cap (USD): $9.80 B
Country: United States
Sector: US Industrials
Industry: US Engineering & Construction

11. Tetra Tech, Inc.

Company Profile: Tetra Tech, Inc.
Market Cap (USD): $8.84 B
Country: United States
Sector: US Industrials
Industry: US Engineering & Construction

12. IES Holdings, Inc.

Company Profile: IES Holdings, Inc.
Market Cap (USD): $8.08 B
Country: United States
Sector: US Industrials
Industry: US Engineering & Construction

13. Primoris Services Corporation

Company Profile: Primoris Services Corporation
Market Cap (USD): $7.06 B
Country: United States
Sector: US Industrials
Industry: US Engineering & Construction

14. Fluor Corporation

Company Profile: Fluor Corporation
Market Cap (USD): $6.74 B
Country: United States
Sector: US Industrials
Industry: US Engineering & Construction

15. Construction Partners, Inc.

Company Profile: Construction Partners, Inc.
Market Cap (USD): $6.34 B
Country: United States
Sector: US Industrials
Industry: US Engineering & Construction

16. KBR, Inc.

Company Profile: KBR, Inc.
Market Cap (USD): $5.22 B
Country: United States
Sector: US Industrials
Industry: US Engineering & Construction

17. Granite Construction Incorporated

Company Profile: Granite Construction Incorporated
Market Cap (USD): $5.20 B
Country: United States
Sector: US Industrials
Industry: US Engineering & Construction

18. Argan, Inc.

Company Profile: Argan, Inc.
Market Cap (USD): $4.52 B
Country: United States
Sector: US Industrials
Industry: US Engineering & Construction

19. Tutor Perini Corporation

Company Profile: Tutor Perini Corporation
Market Cap (USD): $3.66 B
Country: United States
Sector: US Industrials
Industry: US Engineering & Construction

20. MYR Group Inc.

Company Profile: MYR Group Inc.
Market Cap (USD): $3.52 B
Country: United States
Sector: US Industrials
Industry: US Engineering & Construction

21. Ameresco, Inc.

Company Profile: Ameresco, Inc.
Market Cap (USD): $1.62 B
Country: United States
Sector: US Industrials
Industry: US Engineering & Construction

22. Willdan Group, Inc.

Company Profile: Willdan Group, Inc.
Market Cap (USD): $1.57 B
Country: United States
Sector: US Industrials
Industry: US Engineering & Construction

23. NV5 Global, Inc.

Company Profile: NV5 Global, Inc.
Market Cap (USD): $1.55 B (July 1, 2025)
Country: United States
Sector: US Industrials
Industry: US Engineering & Construction

24. Aegion Corporation

Company Profile: Aegion Corporation
Market Cap (USD): $1.52 B
Country: United States
Sector: US Industrials
Industry: US Engineering & Construction

25. Limbach Holdings, Inc.

Company Profile: Limbach Holdings, Inc.
Market Cap (USD): $919.3 M
Country: United States
Sector: US Industrials
Industry: US Engineering & Construction

26. Great Lakes Dredge & Dock Corporation

Company Profile: Great Lakes Dredge & Dock Corporation
Market Cap (USD): $901.7 M
Country: United States
Sector: US Industrials
Industry: US Engineering & Construction

27. Infrastructure and Energy Alternatives, Inc.

Company Profile: Infrastructure and Energy Alternatives, Inc.
Market Cap (USD): $667.0 M (Oct. 1, 2022)
Country: United States
Sector: US Industrials
Industry: US Engineering & Construction

28. Atlas Technical Consultants, Inc.

Company Profile: Atlas Technical Consultants, Inc.
Market Cap (USD): $471.0 M (June 1, 2024)
Country: United States
Sector: US Industrials
Industry: US Engineering & Construction

29. Orion Group Holdings, Inc.

Company Profile: Orion Group Holdings, Inc.
Market Cap (USD): $398.6 M
Country: United States
Sector: US Industrials
Industry: US Engineering & Construction

30. Concrete Pumping Holdings, Inc.

Company Profile: Concrete Pumping Holdings, Inc.
Market Cap (USD): $360.0 M
Country: United States
Sector: US Industrials
Industry: US Engineering & Construction

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