Subcontracting to Prime Contractors: A Beginner's Guide to Breaking Into Federal Work

Most small businesses enter federal contracting the hard way — chasing prime contracts they're not ready to win, burning proposal budget, and wondering why they keep losing. There's a faster path: subcontracting.

As a subcontractor, you perform work under a prime contractor's federal contract. You build past performance, learn agency culture, develop relationships with contracting officers, and get paid — all without needing to win a prime competition first.

This guide covers how subcontracting actually works, how to find prime contractors actively looking for subs, how to pitch your capabilities, and how to use sub experience to eventually win prime contracts on your own.

How Subcontracting Works in Federal Contracting

Why Primes Need Subcontractors

Where to Find Prime Contractors Looking for Subs

The Capability Statement: Your Most Important Document

How to Pitch a Prime Contractor

Negotiating Your Subcontract

Turning Sub Experience Into Prime Wins

Frequently asked questions

Do I need to be registered in SAM.gov to subcontract?

Technically SAM registration is required to receive federal contract payments, which includes subcontract payments flowing from federal dollars. In practice, most primes require active SAM registration before finalizing a subcontract agreement. Register before you start pitching.

How much do subcontractors typically get paid versus the prime?

There's no standard split. Primes typically mark up subcontractor labor rates when billing the government — often 10-20% for management overhead. Your subcontract rate should reflect your actual costs plus profit. Don't let primes squeeze your margin below sustainable levels in exchange for 'exposure.'

Can a subcontractor get a CPARS rating?

No — CPARS ratings are only issued to prime contractors. Your sub performance is documented through PPQs from the prime, not through the government's official rating system. This is why getting written references from primes after performance is critical.

What's the difference between a subcontractor and a teaming partner?

A teaming partner is typically identified before contract award as part of the prime's proposal — they're named in the proposal and their capabilities contribute to the technical evaluation. A subcontractor can be brought on after award without being named in the proposal. Teaming partners usually have a more formal relationship and a larger role.

How many subcontracting relationships should I pursue at once?

Start with 2-3 active prime relationships. More than that and you can't maintain the relationship quality needed to get called when opportunities arise. Depth beats breadth in early-stage federal BD.

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