Loading…

Search every US federal contract opportunity on SAM.gov, and draft winning RFP responses with AI.

Solutions

Contract search AI proposal writing Bid / no-bid scoring Buyer & market intelligence Forecast & recompetes Awards & competitors Teaming & partner network State & local contracts Pipeline & CRM

Find Contracts

All contracts Closing soon Recently posted Highest value Buyer Intelligence What’s coming up Who’s winning (awards)8(a) set-asides WOSB set-asides SDVOSB set-asides HUBZone set-asides

Agency opportunities

DoD contracts VA contracts HHS contracts DHS contracts DOE contracts GSA contracts DOT contracts NASA contracts

Tools & Pricing

AI Opportunity Scan Contract Pricing Benchmark Competitor & Incumbent Lookup Company Award Profile GovCon Market Explorer Supplier & Teaming Finder AI Pursuit Analyzer NAICS Code Lookup Set-Aside Eligibility Small Business Size Standard Acquisition Threshold Guide Bid / No-Bid Scorecard Bid ROI Calculator CMMC 2.0 / SPRS Estimator HUBZone Eligibility Checker Plans & pricing

Learn

Market Reports Blog Answers (Q&A)Resources Glossary A–Z Guides Compare tools 2026 data report

Company

About Contact sales Security & trust Careers WinAContract UK BidWriter UK GovCon — AI proposals eSourcing Data Privacy Terms Refunds

Services & network

Bid & capture consulting Registration & certifications GovCon training Supplier network Teaming & partnering Data & API Reports store

WinAContract is US-based and US-hosted — AI federal contract search and proposal writing software for US government contractors. Operated by eSourcing Data Ltd.

© 2026 eSourcing Data Ltd · info@winacontract.com

NAICS 237310

Top contractors in NAICS 237310

The 671 contractors with tracked federal awards in NAICS 237310, totalling $16,775,162,282. Ranked by award value.

See live NAICS 237310 opportunities →All contractors

1SOUTHWEST VALLEY CONSTRUCTORS CO$2,272,615,3184 awards
2BFBC LLC$1,837,147,4215 awards
3FISHER SAND & GRAVEL CO$1,552,141,7113 awards
4SLSCO, LTD.$1,145,964,3717 awards
5KIEWIT INFRASTRUCTURE CO.$450,073,6741 awards
6KIEWIT INFRASTRUCTURE WEST CO.$381,670,2211 awards
7POSILLICO CIVIL INC COASTAL ENVIRONMENTAL GROUP INC A JOINT VENTURE$292,725,2082 awards
8KIEWIT INFRASTRUCTURE SOUTH CO$260,562,7751 awards
9GIBRALTAR-CADDELL A JOINT VENTURE$238,752,8881 awards
10GRANITE CONSTRUCTION COMPANY$227,765,8983 awards
11STEVE MANNING CONSTRUCTION INC$225,600,0098 awards
12ESTES BROS. CONST. INC.$223,183,43814 awards
13FORT MYER CONSTRUCTION CORP$217,476,7342 awards
14THE LANE CONSTRUCTION CORPORATION$207,849,0001 awards
15H-K CONTRACTORS, INC.$195,753,0594 awards
16KOKOSING CONSTRUCTION COMPANY, INC.$194,515,2922 awards
17PARSONS GOVERNMENT SERVICES INC.$189,222,2791 awards
18ARCHER WESTERN CONSTRUCTION LLC$186,262,7152 awards
19BLACK MICRO CORPORATION$163,176,7151 awards
20R. C. CONSTRUCTION CO., INC.$136,295,2662 awards
21LPC CONTRACTORS INC$136,062,3253 awards
22WAGMAN HEAVY CIVIL INC$134,210,9771 awards
23NOVA NACAP A JOINT VENTURE$129,585,3721 awards
24MAYMEAD INC$116,153,5731 awards
25CORE TECH LLC$112,700,5071 awards
26CENTRAL SOUTHERN CONSTRUCTION CORP.$112,281,01218 awards
27HEAD / DIAZ 2022$101,154,1981 awards
28AMRIZE SOUTHWEST INC$96,373,1602 awards
29AMERICAN INTERNATIONAL CONTRACTORS INC$95,877,6522 awards
30RANDY KINDER EXCAVATING INC$90,098,4013 awards
31M.A. DEATLEY CONSTRUCTION, INC.$89,346,2185 awards
32LGC GLOBAL, INC.$86,498,2262 awards
33CJW JOINT VENTURE$85,009,9401 awards
34ECLIPSE COMPANIES, LLC$79,846,89515 awards
35BRYANT'S LAND AND DEVELOPMENT INDUSTRIES, INC.$75,766,75511 awards
36ALBERICI CONSTRUCTORS INC$63,796,0001 awards
37OFTEDAL CONSTRUCTION, INC.$63,439,8153 awards
38ALAMO CITY CONSTRUCTORS, INC.$60,652,8523 awards
39T & T CONSTRUCTION ENTERPRISES, LLC$56,448,2201 awards
40KIEWIT INFRASTRUCTURE WEST CO$55,889,7742 awards
41PCC VENTURES$55,397,6612 awards
42MARTIN BROTHERS CONSTRUCTION$52,823,9286 awards
43MCKENZIE CONSTRUCTION & SITE DEVELOPMENT LLC$51,607,7939 awards
44HERBACK GENERAL ENGINEERING LLC$51,246,4634 awards
45WILLIAMS CONSTRUCTION & CABINETRY, INC.$50,167,44815 awards
46NH1 JV$48,630,3421 awards
47HARPER CONSTRUCTION COMPANY, INC.$47,953,0041 awards
48TUCCI & SONS LLC$47,050,8252 awards
49J D ECKMAN INC$46,457,5311 awards
50COFFMAN SPECIALTIES, INC.$44,481,6843 awards
51GOLDEN TRIANGLE CONSTRUCTION CO INC$44,157,7501 awards
52CIVIL WORKS CONTRACTING LLC$42,700,5075 awards
53JV SKE ITALY 2012$42,467,7301 awards
54WAGNER CONSTRUCTION, INC$41,511,5461 awards
55HEAD, LLC$41,404,8437 awards
56BL HARBERT INTERNATIONAL LLC$41,381,3931 awards
57VSS INTERNATIONAL INC$41,319,0206 awards
58SES CONSTRUCTORS LLC$40,160,0943 awards
59LAS VEGAS PAVING CORPORATION$38,970,0362 awards
60AMERICAN CIVIL CONSTRUCTORS LLC$38,097,1771 awards