The Department of Defense obligated roughly $470 billion in contracts in FY2024. The vast majority of that flowed through large prime contractors — Lockheed, Booz Allen, Leidos, SAIC, and hundreds of others — who are legally required to give small businesses a meaningful share of the work.
That requirement is not voluntary goodwill. It's codified in FAR 19.702. And it's your entry point.
Any prime contractor that receives a DoD contract over $750,000 (or $1.5 million for construction) must submit a small business subcontracting plan. That plan commits the prime to percentage targets for work awarded to small businesses, small disadvantaged businesses, women-owned small businesses, HUBZone firms, service-disabled veteran-owned small businesses, and veteran-owned small businesses.
Those commitments are reported annually to the Electronic Subcontracting Reporting System (eSRS), and the SBA evaluates whether primes are actually hitting their goals. Primes that consistently fall short can be marked as past-performance risks. So when a BD person at a large defense contractor says they're "looking for small business partners," some of that is genuine business need — and some is keeping their compliance numbers green.
Either way, it creates opportunity for you.
DoD is not one buyer — it's a constellation of buying offices, each with its own contracting activity, its own small business office, and its own set of prime contractors. Army contracting looks nothing like DLA. SOCOM is its own world.
Every major DoD component has an Office of Small Business Programs (OSBP) whose job is to help small businesses connect with prime contractors and contracting opportunities in that command. These are your first-call contacts — not individual contracting officers, who are transactional and can't help you with BD.
| DoD Component | OSBP | Website |
|---|---|---|
| Army | Office of Small Business Programs | business.army.mil |
| Navy & Marine Corps | Office of Small Business Programs | secnav.navy.mil/smallbusiness |
| Air Force & Space Force | Small Business Programs | afsmallbiz.af.mil |
| Defense Logistics Agency | Office of Small Business Programs | dla.mil/SmallBusiness |
| Defense Information Systems Agency | Small Business Office | disa.mil/SmallBusiness |
| Special Operations Command | Small Business Office | socom.mil/SBIPC |
| Defense Intelligence Agency | Small Business Programs | dia.mil/Business |
| Missile Defense Agency | Small Business Office | mda.mil/business/small_business |
Each OSBP maintains directories of prime contractors active in that command, hosts matchmaking events, and sometimes runs formal mentorship programs. They're a genuine resource, not a bureaucratic dead end.
Go to usaspending.gov/explorer/agency and drill into Department of Defense. Filter by your NAICS code, award type (contracts), and time range. This gives you the ranked list of prime contractors receiving DoD awards in your space — with dollar amounts, award dates, and contracting office. Start here, not with a cold call.
Once you have a target prime from USASpending, look them up in SAM.gov. Active registrants list points of contact, including sometimes a small business liaison officer (SBLO) — the person inside the prime who manages subcontracting relationships. An SBLO contact is worth more than a generic BD email; they have goals to hit and need qualified subs to do it.
The Electronic Subcontracting Reporting System at esrs.gov is where primes file their subcontracting reports. Certain summary data is publicly searchable. You can identify which large contractors are actively reporting subcontracting under DoD contracts — meaning active subcontracting programs, not just plan commitments on paper. Active reporters are more likely to have an SBLO with a real pipeline.
SAM.gov posts thousands of sources sought notices every month. For DoD procurements, filter by agency and notice type "Sources Sought" or "Special Notice." These come out before solicitations are released, when prime contractors are still forming their teams. A well-written sources sought response gets you into the conversation months before competitors know the opportunity exists. Set up email alerts in SAM.gov for your NAICS codes filtered to DoD agencies.
Formerly called PTACs (Procurement Technical Assistance Centers), APEX Accelerators are a DoD-funded network of local offices that provide free procurement counseling to small businesses. There are roughly 300 locations nationwide.
What they actually do: help you get registered in SAM.gov, identify relevant solicitations, review your capability statements, and — most useful — connect you with local prime contractors looking for subs. Many APEX offices host matchmaking events where primes recruit subs for specific upcoming contracts.
The major DoD commands run industry days — formal events where the government briefs industry on upcoming procurements and often facilitates one-on-one meetings between primes and potential subs. These are not well-publicized. They're announced on SAM.gov (under "Special Notice"), on individual command websites, and through APEX Accelerator mailing lists.
The value of an industry day is intelligence, not networking cards. You learn what the agency actually cares about, which primes are positioning, and — by watching who the program office talks to — which companies are already incumbents or have informal relationships. That context shapes your subcontracting outreach.
Primes get a lot of generic outreach. "We're a certified small business with capabilities in IT and logistics" lands in a folder with 200 identical emails.
What works is specificity. Reference the contract by number. Name the NAICS code. State your small business certification status. Tell them what you'd actually do on this contract — not your general service line. If you have past performance on similar DoD work, lead with that.
The Defense Logistics Agency deserves a separate mention because it operates differently from the military services. DLA handles supply chain and logistics contracting — food, fuel, clothing, medical supplies, construction materials, and more — and it buys at very high volume in categories that aren't typical "defense" work.
DLA has its own subcontracting ecosystem and its own OSBP. If your capabilities overlap with supply chain, logistics, distribution, or product sourcing, DLA is worth treating as a separate market from Army/Navy/Air Force. Start at dla.mil/SmallBusiness.
Some DoD subcontracting work requires facility clearances or cleared personnel. If your firm doesn't have a facility clearance (FCL), you're automatically excluded from classified work — which eliminates a significant slice of DoD opportunities, particularly in intelligence, cyber, and special programs.
Getting an FCL takes time (typically 6–18 months) and requires a prime sponsor — you can't self-sponsor. If cleared work is part of your DoD strategy, find a prime willing to sponsor your clearance as part of a teaming arrangement. That's a negotiating point worth raising early.
Pick one DoD component where your work is most relevant. Go to USASpending.gov, filter to that component and your primary NAICS code, and identify the top 10 prime contractors by award volume over the last 24 months. For each, pull their SAM.gov registration, find the SBLO contact, and search eSRS for their subcontracting reports.
Then go to that component's OSBP website and sign up for their small business events and mailing list. Set up a SAM.gov alert for sources sought notices under that agency code.
That's a week of work that produces a target list, a contact map, and an early warning system for new opportunities. It's a lot more useful than attending a generic matchmaking event and handing out 50 business cards.
PrimeFinder pulls DoD award data from USASpending, cross-references prime contractor registrations from SAM.gov, and surfaces contact information — then drafts your outreach email — in a single pipeline. It takes a day of manual research down to minutes.
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