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 532411

Top contractors in NAICS 532411

The 16 contractors with tracked federal awards in NAICS 532411, totalling $331,471,819. Ranked by award value.

See live NAICS 532411 opportunities →All contractors

1GULFSTREAM AEROSPACE CORPORATION$183,603,4541 awards
2TENAX AEROSPACE LLC$102,072,10916 awards
3AERY AVIATION, LLC$8,570,7781 awards
4SHOAF MARINE, INC.$6,140,5661 awards
5JAPAN OIL TRANSPORTATION CO., LTD.$6,020,6541 awards
6GREENWOOD GROUP INC$5,197,4645 awards
7DUPRE MARINE TRANSPORTATION LLC$4,740,0001 awards
8SEACUBE LEASING INTERNATIONAL, INC.$4,265,1385 awards
9MARQUETTE TRANSPORTATION COMPANY, LLC$3,287,5002 awards
10P & S BOAT RENTAL CO INC$2,667,5593 awards
11W. LEIGH & ASSOCIATES, INC$1,910,3551 awards
12TRITON CONTAINER INTERNATIONAL LIMITED$1,269,3402 awards
13NEXT GENERATION LOGISTICS, LLC$1,115,0001 awards
14UNIVERSITY OF WASHINGTON$265,6021 awards
15DONOFRIO GENERAL CONTRACTORS CORP$249,7501 awards
16SAFE BOATS INTERNATIONAL LLC$96,5501 awards