Federal Subcontracting Opportunities for Small Businesses: The Other Path into Federal Work

Most small business owners know that the federal government awards billions of dollars in contracts every year. What many don’t know is that there’s a second path into federal work that doesn’t require you to win a prime contract at all: federal subcontracting. This guide explains what it is, why prime contractors are required to use small business subcontractors, and how to find these opportunities.

What is federal subcontracting?

When a large company wins a major federal contract, they often hire smaller companies to handle specific portions of the project. Those smaller companies are subcontractors. The work they do is federal subcontracting.

From a small business perspective, subcontracting looks like this: a defense contractor wins a $50 million IT modernization contract with the Department of Defense. That contractor needs cybersecurity specialists, data migration consultants, and training providers. Rather than hiring all of those employees directly, they subcontract that work to small businesses with the right expertise. The small business does federal work, gets paid from federal funds, and builds a federal contracting track record — without ever having to win a prime contract on its own.

Why prime contractors are required to use small business subcontractors

This isn’t just a nice thing that large contractors do. Federal law requires it.

Under the Small Business Act, any prime contractor receiving a federal contract over $750,000 (or $1.5 million for construction) must submit a subcontracting plan committing to specific dollar goals for small business subcontracting. That plan must include separate targets for several categories: small businesses generally, small disadvantaged businesses, women-owned small businesses, HUBZone businesses, veteran-owned businesses, and service-disabled veteran-owned businesses.

These are not suggestions. The contracting officer reviews the plan before award. If a prime contractor fails to make good-faith efforts to meet their subcontracting goals, they can face financial penalties. This means prime contractors are actively looking for qualified small business subcontractors — and they have a compliance incentive to find them.

Where subcontracting opportunities are posted

Prime contractors post subcontracting opportunities on the SBA’s SUBNet portal (sub.net). SUBNet is a free, publicly searchable database where prime contractors list specific subcontracting needs. You can search by NAICS code, location, and keyword to find opportunities that match your business.

SUBNet postings work differently from SAM.gov contract solicitations. Rather than a formal solicitation with a strict response deadline, SUBNet postings are closer to a notice of need: the prime contractor is looking for small business partners for a specific type of work, and they want you to contact them. Some postings have deadlines; others remain active until the prime fills their need.

Like SAM.gov, the challenge with SUBNet is volume and consistency. New opportunities are posted regularly, and manually checking the portal requires ongoing effort. For more on the monitoring challenge, see our complete guide to SAM.gov contract monitoring for small businesses.

How certifications help with subcontracting

If your business holds a small business certification — 8(a), HUBZone, WOSB, SDVOSB, or SDB — subcontracting becomes significantly easier. Prime contractors with subcontracting plans are specifically required to meet goals for certified small businesses. When a prime contractor needs to meet their women-owned or HUBZone subcontracting targets, they are looking for certified businesses in those categories. Your certification is a filter that puts you in front of the right primes.

Certifications are issued by the SBA. The application process is free and takes weeks to months depending on the program. For details on how each certification works and which subcontracting opportunities it opens up, see our guides:

• 8(a) certified businesses
• HUBZone businesses
• Women-owned small businesses (WOSB / EDWOSB)
• Service-disabled veteran-owned small businesses (SDVOSB)
• Small disadvantaged businesses (SDB)

Why subcontracting is a good entry point for new federal contractors

Winning a prime contract for the first time is hard. Agencies want to see past performance — prior federal work — before awarding you a contract. But you can’t build a past performance record without winning a contract first. Subcontracting breaks that cycle.

When you subcontract under a prime contractor, you build a documented record of federal work. The prime contractor can provide a past performance reference. You learn how the federal procurement process works from the inside. You develop relationships with agencies and contracting officers. And you do all of this with less risk than a full prime contract bid, because the prime contractor has already won the work and secured the funding.

Many businesses that now win prime contracts directly got their start as subcontractors. The path is: subcontract first, build the record, then bid on prime contracts with something to point to.

How ContractRadar monitors subcontracting opportunities

ContractRadar monitors both SAM.gov and the SBA subcontracting portal daily. When you set up your profile — your NAICS codes, the states you work in, and any certifications you hold — ContractRadar checks both sources for matching opportunities and emails you the results each day.

This means you don’t have to maintain two separate monitoring workflows. Prime contract solicitations from SAM.gov and subcontracting opportunities from the SBA portal both arrive in the same daily email, filtered to your business profile. If you hold an 8(a) or HUBZone certification, opportunities set aside for those certifications are prioritized in your results. Each match — whether it’s a prime contract or a subcontracting opportunity — also includes previously awarded similar contracts from USASpending.gov, so you can see the competitive landscape before reaching out.

How to get started

Getting started with federal subcontracting requires less setup than prime contracting. You do not need to be registered in SAM.gov to pursue a subcontracting opportunity — the prime contractor handles the federal compliance requirements. You do need to be able to demonstrate your qualifications, have relevant past performance (commercial work counts), and ideally hold any relevant certifications.

1. Identify your NAICS codes so you can filter opportunities that match your work
2. Get certified if you qualify for 8(a), HUBZone, WOSB, SDVOSB, or SDB — it dramatically expands your opportunities
3. Set up monitoring so you see new subcontracting opportunities as they are posted
4. When you find a relevant posting, contact the prime contractor promptly — response windows can be short
5. Build your past performance record through subcontracts, then consider bidding on prime contracts directly

Federal subcontracting is not a consolation prize. For many small businesses, it’s the most practical path into federal work, and it can be highly lucrative. The key is knowing the opportunities exist and being in a position to respond when they are posted.

For a broader overview of how federal contracting works for small businesses, see our guide to finding federal contracts for your small business.