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Large Prime Contractors

Manage capture across dozens of agencies and hundreds of opportunities without losing the thread.

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Eligibility — are you large primes?

Sourced from the official program page

  • No size restriction — large businesses compete on full-and-open contracts and via large-business set-asides
  • Active SAM.gov registration with UEI and CAGE code
  • Subject to small business subcontracting plan requirements (FAR 19.7) on contracts >$750K
  • Eligible for all GWACs and IDIQs without small business restriction
  • Most LPCs hold multiple GSA Schedules and IDIQ vehicles
  • Top 100 LPCs account for ~50% of federal prime contract dollars

Contracting advantages for large primes

Why large primes have a structural edge on federal opportunities.

  • Full-and-open opportunities (~30-40% of federal contract dollars)
  • Large-dollar IDIQs and GWACs with high task-order velocity
  • Set-aside-exclusion strategies: bid via small business subsidiary partners
  • Mentor-Protégé Program (MPP) for joint ventures with small businesses
  • Strong incumbency advantage on long-cycle programs (defence, healthcare, IT modernisation)
  • Direct relationships with senior contracting officers via OSDBU and industry days

Where large primes typically compete

Typical contract value: $5M – $1B+ per award

Top NAICS codes

  • 541330 Engineering Services
  • 541512 Computer Systems Design Services
  • 541611 Administrative Management Consulting
  • 336411 Aircraft Manufacturing
  • 236220 Commercial Building Construction
  • 541715 R&D in Engineering & Life Sciences

Top contracting agencies

  • Department of Defense (DOD)
  • Department of Homeland Security (DHS)
  • Department of Veterans Affairs (VA)
  • GSA Federal Acquisition Service
  • Department of Energy (DOE)
  • NASA

Challenges large primes face

The friction points we hear most from large primes doing federal work.

  • Capture portfolio is enormous (50-500+ active pursuits) — visibility loss is a real risk
  • Proposal team productivity is the bottleneck — every hour of writer time costs $400+
  • IDIQ task orders close in 7-21 days — fast response needed at scale
  • Small business subcontracting compliance reporting is admin-heavy and audit-prone

How WinAContract helps large primes

What we built specifically for the large prime workflow.

  • Portfolio-scale pipeline view across every active opportunity and task order
  • AI drafts task order responses in hours instead of days — scales proposal output without hiring writers
  • Automated subcontracting plan tracking and compliance reporting
  • Past-performance library AI-surfaces relevant references across thousands of historic wins

Frequently asked

Why would a large prime use a search tool when we have BD teams?

Coverage. BD teams know your strategic agencies; an AI search catches every adjacent opportunity (lateral agencies, related NAICS, follow-on RFPs) that your BD team would never have time to monitor manually. Increases pipeline by 20-40% in our UK customer base.

How does WinAContract help with IDIQ task orders?

Task order alerts are tagged by IDIQ vehicle (CIO-SP3, OASIS+, Alliant 2, etc.) so your delivery teams see only orders against vehicles they're on. AI drafts the technical sections from your past task-order wins on the same vehicle.

Can we integrate with our existing CRM (Salesforce / Deltek)?

Roadmap. The Q3 2026 launch will offer Salesforce, Deltek Vantagepoint, and Unison Marketplace integrations as part of the Enterprise tier. Founding members get free integration setup at launch.

Do you cover classified opportunities?

No — WinAContract aggregates publicly published SAM.gov, GSA eBuy, and agency forecast data. Classified opportunities (SCIF-required, controlled access) are not in scope.

Join the large primes waitlist

Free pre-launch access notification — no card required. We'll let you know the moment large prime-specific features ship.

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See also

For 8(a) firms For SDVOSBs For WOSBs For HUBZone firms For VOSBs For small businesses

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Where to next?

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