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 333415

Top contractors in NAICS 333415

The 35 contractors with tracked federal awards in NAICS 333415, totalling $27,237,214. Ranked by award value.

See live NAICS 333415 opportunities →All contractors

1MAINSTREAM ENGINEERING CORP$10,158,9781 awards
2TL SERVICES, INC.$4,498,6911 awards
3BIOFRIDGE INC.$4,049,7131 awards
4BROTHERS MECHANICAL SERVICES LLC$1,796,3801 awards
5BML CONSTRUCTION LLC$820,1071 awards
6MILLROCK TECHNOLOGY INC$579,6951 awards
7PALMETTO AIR & CHILLER SERVICE INC$426,7081 awards
8WATER HEATER DISTRIBUTORS, LLC$415,5381 awards
9SURFACIDE, LLC$414,7101 awards
10MISCELLANEOUS FOREIGN AWARDEES$375,6014 awards
11MAHAN'S THERMAL PRODUCTS, INC.$335,6761 awards
12JOHNSON CONTROLS, INC$319,2661 awards
138MINTSOLUTIONS LLC$308,0161 awards
14JOHNSON CONTROLS BUILDING SOLUTIONS, LLC$305,6031 awards
15DARWIN CHAMBERS CO LLC$229,7681 awards
16THERMAL TECH INC$195,5161 awards
17VETERANS HEALTHCARE SUPPLY SOLUTIONS, INC$191,1851 awards
18BINAIR ASOCIADOS SL$186,9601 awards
19CHAMPION MEDICAL TECHNOLOGIES, INC$145,1172 awards
20FISHER SCIENTIFIC COMPANY L.L.C.$137,7781 awards
21MECHANICAL AIR DESIGN, INC.$134,0001 awards
22FOREIGN AWARDEES (UNDISCLOSED)$117,5791 awards
23CAMPBELL-SEVEY INC$117,1641 awards
24LEE COLLINS AIR CONDITIONING COMPANY$116,0351 awards
25CD MECHANICAL, INC.$110,9001 awards
26PORTABLE AIR GROUP LLC$109,5431 awards
27SCIENTEMP CORP$103,4651 awards
28GLOBAL SERVICE TITAN LLC$91,4441 awards
29THERMO DYNAMICS INC$81,8441 awards
30COSPOLICH INC.$74,7661 awards
313T BUSINESS GROUP LLC$65,0001 awards
32LABREPCO LLC$63,7221 awards
33ALLIANCE NETWORK INTEGRATORS LLC$60,0001 awards
34MULTISTACK LLC$54,9211 awards
35ALDEVRA LLC$45,8241 awards