A prime contractor contracts with the government. A subcontractor contracts with another contractor for part of the work. Choosing a path changes the customer relationship and responsibilities. It does not remove the need to verify the technical work, contractual conditions and information your team would handle.
Start with the role you can support on this opportunity, rather than treating a company as permanently “a prime” or “a sub.”
Compare the proposed responsibility
| Question | Prime path | Subcontractor path |
|---|---|---|
| Who is the immediate customer? | The government contracting party | The prime or another contractor |
| What is the work boundary? | The complete scope you undertake under the award | The defined portion in the subcontract |
| Who sets response instructions? | The solicitation and contracting authority | The requesting contractor and proposed subcontract |
| What evidence is needed? | Evidence requested for the prime response and performance | Evidence for the proposed role and applicable flowed requirements |
| Who resolves a contract change? | The authorized government contracting party | The authorized parties to the subcontract |
The SBA’s prime and subcontracting resources provide an official starting point. Particular teaming, size and subcontracting rules require their own review. This comparison does not settle those questions.
Define the work before searching for partners
Write one sentence describing the actual role: manufacture a specified component, distribute an approved product, perform a technical service, integrate a subsystem or provide another defined contribution.
Then list the evidence needed to support that role. A shared NAICS code or award history with the same buying office does not prove that another company can supply the missing work, has available capacity or wants to team.
Treat possible partners as research candidates until the relevant facts and relationship are established. Do not describe an unconfirmed discussion as committed team capacity in a response.
Follow the information as well as the work
A subcontractor can receive sensitive information even when its deliverable is an ordinary manufactured item or service report. Examine the drawings, specifications, systems and communications needed to perform the role.
DFARS 252.204-7021 includes conditions for flowing CMMC requirements to covered subcontracts. The applicable level depends on the information involved and the governing requirements, not merely the prime’s label. Other clauses have their own applicability and flowdown rules.
Use amended subcontractor requirements when the proposed work or information changes.
Make the commercial decision separately
Consider who will own pricing, customer communication, integration, delivery commitments and the evidence burden. A smaller work scope can still involve demanding access or quality conditions. A prime role can create responsibilities beyond the technical portion your team knows best.
The capability evidence worksheet helps state the role you can substantiate. The bid checklist captures unresolved conditions.
This page provides educational decision support. It does not recommend a teaming partner or advertise a supplier-matching product. Official sources reviewed September 7, 2026.