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 236118

Top contractors in NAICS 236118

The 42 contractors with tracked federal awards in NAICS 236118, totalling $682,652,416. Ranked by award value.

See live NAICS 236118 opportunities →All contractors

1NIPPO CORPORATION$357,904,9068 awards
2GILBANE JAPAN GK$80,253,9002 awards
3MESSER CONSTRUCTION CO$78,076,6231 awards
4ICHIKEN CO LTD$57,790,1912 awards
5BUNDESMINISTERIUM FÜR UMWELT, NATURSCHUTZ UND REAKTORSICHERHEIT$13,988,1342 awards
6MISCELLANEOUS FOREIGN AWARDEES$13,439,6447 awards
7KOSAKA KOMUTEN CO.,LTD.$12,205,2531 awards
8DESBUILD INCORPORATED$8,550,6501 awards
9FED SERVE LLC$6,745,97611 awards
10AIKO-KMK MP JV LLC$5,817,0101 awards
11SIMON KOUBA CONSULTANTS LTD$4,431,4441 awards
12PLUG IN UTILITY SERVICES CORP$4,398,2071 awards
13FRAMACO-BOZDEMIR JOINT VENTURE LLC$4,176,5151 awards
14METROLIT SERVICE AKTIEBOLAG$4,070,9431 awards
15SKE TECHNICAL SERVICES GMBH$3,674,1252 awards
16VEYKA INSAAT MIMARLIK MUHENDISLIK SANAYI IC VE DIS TICARET ANONIM SIRKETI$3,442,9541 awards
17CENTERRA INTEGRATED SERVICES GMBH$2,769,4221 awards
18THE BLACK BARONS GROUP LLC$2,764,4491 awards
19SEALASKA CONSTRUCTORS LLC$2,294,2491 awards
20HANWHA HOTELS & RESORTS$1,679,1851 awards
21TOYO TRUST TOKKI CO.,LTD.$1,634,0541 awards
22MEPTEK MUHENDISLIK TAAHHUT TICARET LIMITED SIRKETI$1,548,6291 awards
23VERITAS FACILITY SERVICES AND CONSTRUCTION, INC$1,306,9202 awards
24DOT CONSTRUCTION, INC$1,240,5291 awards
25SEVER YAHEL BUILDING WORKS LTD.$1,104,8581 awards
26LACREEK DEVELOPMENT CORP$1,022,5981 awards
27WAYSS & FREYTAG INGENIEURBAU AG$1,008,7171 awards
28CB CONSTRUCTION SERVICES, INC$862,4741 awards
29M OKAMURA CONTRACTOR INC$749,0251 awards
30OK2 CONSTRUCTION, LLC$603,5381 awards
31ROBERTSON WELDING & CONSTRUCTION LLC$518,1021 awards
32BLACKHAWK CONTRACTING, LLC$465,4231 awards
33TRAUTMAN’S PAINTING, L.L.C.$396,3501 awards
34MICHAEL MELTON CONTRACTING LLC$323,0001 awards
35ACIERTO LLC$310,8461 awards
36MARTINEZ SERVICES, INC.$283,6231 awards
37PROPERTY MANAGEMENT RESOURCES LLC$230,0501 awards
38DKI808 LLC$172,8121 awards
39SGI CONSTRUCTION LLC$149,9841 awards
40BRIGANTE ENGINEERING S.R.L.$142,2121 awards
41HWSI GMBH$65,2241 awards
42SUNSHADE ENTERPRISE$39,6671 awards