One of the first strategic decisions a business entering federal contracting faces is whether to pursue contracts directly as a prime contractor or start by working under an existing prime as a subcontractor. Both paths lead to federal revenue — but they have very different timelines, requirements, and risk profiles.
A prime contractor holds a direct contract with the federal government and bears full performance and compliance responsibility. A subcontractor works under a prime, delivering specific portions of the work without a direct government contract. For most new federal contractors, subcontracting is the faster path to first federal revenue — and a proven way to build the past performance needed to compete as a prime.
Understanding the Two Roles
What Is a Prime Contractor?
A prime contractor has a direct contractual relationship with the federal government. The prime is responsible for the full scope of work — including managing any subcontractors, meeting all compliance requirements, and delivering results to the contracting officer.
Prime contractors bear the full weight of federal contract compliance: FAR clauses, performance ratings in CPARS, invoice submission through government portals (WAWF or IPP), and reporting requirements. They also capture the full contract value on their past performance record.
What Is a Subcontractor?
A subcontractor works under a prime contractor, performing a defined portion of the work. The subcontractor has no direct contract with the government — their agreement is with the prime. The prime "flows down" relevant FAR clauses and compliance requirements to subcontractors as part of the teaming arrangement.
Subcontractors receive payment from the prime (not directly from the government), perform a specific scope, and typically have fewer direct compliance obligations than the prime — though flow-down requirements still apply.
- Direct contract with the federal government
- Full compliance and performance responsibility
- Invoices the government directly
- Full contract value on past performance record
- Requires SAM.gov registration
- Higher barrier to entry for new vendors
- Maximum revenue potential per contract
- Contract is with the prime, not the government
- Reduced direct compliance burden
- Invoices the prime contractor
- Builds federal past performance record
- SAM.gov registration not always required
- Faster entry for businesses without past performance
- Revenue limited to subcontract scope
Why Subcontracting Is Often the Right First Move
Federal contracting has a well-known chicken-and-egg problem: agencies want past performance, but you can't build past performance without winning contracts. Subcontracting breaks that cycle.
By working under an established prime, a new federal vendor can:
- Build documented federal past performance that can be cited in future prime proposals — even from a subcontractor role
- Learn how federal contracts work from the inside — invoice processes, compliance requirements, deliverable management, COR relationships
- Build relationships with the agency through the prime's existing contract — the contracting officer and COR see your work firsthand
- Generate federal revenue faster than waiting to win a prime contract through open competition
- Establish credibility with the prime that can lead to preferred teaming arrangements on future bids
When I advise clients who are frustrated by the time it takes to win their first prime contract, I always ask: "Are you pursuing subcontracting in parallel?" The answer is usually no. Subcontracting isn't a consolation prize — it's a deliberate strategy. The primes holding the large IDIQs and MACs in your industry need qualified subs. They have subcontracting plan requirements to meet. Getting onto a prime's approved vendor list is often faster than winning a direct federal contract, and the relationship you build with that prime is worth more than one contract.
When to Pursue Prime Contracts First
Subcontracting isn't the right first move for every business. Prime contracting may be the better immediate path when:
- Your business already has relevant past performance from commercial, state/local, or prior federal work that can be cited in proposals
- You're targeting simplified acquisition contracts (under $250,000) where past performance requirements are less stringent
- You qualify for a small business set-aside that limits competition to vendors like you
- You're pursuing a Sources Sought response that could lead to a sole-source award under an 8(a) or other set-aside program
- You have specialized capability with limited competition in your NAICS category
How to Find Subcontracting Opportunities
Subcontracting opportunities aren't posted on SAM.gov the way prime opportunities are. Finding them requires proactive outreach to the prime contractors already winning in your industry.
Identify Primes Active in Your NAICS
Use USASpending.gov and SAM.gov award data to find the companies currently winning contracts in your NAICS category. Filter by agency and geography to find the most relevant primes.
Research Their Subcontracting Programs
Many large primes are required to submit subcontracting plans with their bids. Visit their websites for small business or supplier diversity pages. Companies like AECOM, Leidos, Jacobs, and Booz Allen Hamilton all maintain formal subcontractor programs.
Reach Out with a Tailored Capability Statement
Contact the prime's small business liaison or procurement team directly. Lead with a one-page federal capability statement tailored to their work — not a generic company overview. Be specific about what you do and how it complements their active contracts.
Get on Their Approved Vendor List
Many primes maintain approved or preferred vendor lists used when scoping subcontracts. Request inclusion in their system — this keeps you visible when a relevant need arises, without requiring active pursuit of every individual opportunity.
Document Every Subcontract Engagement
For each subcontract, record the agency, prime contractor, contract number, scope performed, dollar value, period of performance, and a reference contact. This becomes your past performance record for future prime proposals.
Major Prime Contractors by Industry
These companies hold significant federal contract vehicles and actively seek small business subcontractors to meet subcontracting plan requirements:
Defense / Engineering / Construction- AECOM — engineering, construction, environmental, infrastructure
- Jacobs Engineering Group — technical services, construction, IT
- Fluor Corporation — government services, construction, energy
- Kiewit Corporation — heavy construction, infrastructure
- Booz Allen Hamilton — consulting, IT, analytics, cybersecurity
- Leidos — IT, engineering, logistics, health IT
- SAIC — IT services, engineering, integration
- Peraton — IT, communications, space, intelligence
Getting onto a prime's approved vendor list is often faster than winning a direct federal contract — and the relationship you build with that prime is worth more than any single award. Pursue both tracks simultaneously from Day 1.
Build Your Federal Pipeline — Prime and Sub
Biz2Gov helps clients identify the right primes in their industry, craft outreach strategies, and pursue both tracks simultaneously. Book a strategy call to map out your approach.
Frequently Asked Questions