Before you chase a single opportunity, it pays to know who actually buys what you sell — which agencies, how often, and roughly how much they pay. That intelligence is public and free, and the best place to start is USAspending.gov, the government’s open database of federal spending.
USAspending.gov is the federal government’s free, public database of all federal spending. To research who buys what you sell, run an Award Search filtered by your NAICS or PSC code, then narrow by agency, time period, and place of performance. Each record shows the buying agency, the winning vendor, the dollar amount, and the period of performance — everything you need to spot recurring buyers, identify incumbents, and time upcoming recompetes. No account required.
What USAspending.gov Is (and How It Differs From SAM.gov)
USAspending.gov is the official source for how the federal government spends taxpayer money — contracts, grants, loans, and more. It’s run by the Treasury Department, it’s completely free, and unlike some tools it does not require an account to search. For a small business, its value is simple: it shows you what has already been bought, which is the single best predictor of what will be bought again.
It helps to know how the federal data tools now fit together, because this changed recently. SAM.gov is where you register, search open opportunities, and — since February 24, 2026, when FPDS.gov was decommissioned — search individual contract award records (a free account is required to view them). USAspending.gov is the government-wide spending picture: broader, downloadable, and account-free.
Before You Search: Know Your Codes
USAspending is most powerful when you search by the codes that classify federal work: your NAICS code (the industry classification for the business performing the work) and the PSC, or Product Service Code (what is actually being bought). If you haven’t nailed these down yet, do that first — choosing the right codes is a registration-stage task covered in our SAM.gov Registration Guide. Once you know your primary NAICS and a couple of related PSCs, you can pull a precise picture of your market.
Running Your First Search
From USAspending.gov, open Award Search → Advanced Search and build the query step by step:
Set the award type
Choose Contracts for most small-business research (this filters out grants and loans).
Enter your NAICS or PSC
Add your code to see every award in your industry. Start broad with one code, then refine.
Add agency and location filters
Leave the awarding agency open to see all buyers, or narrow it. Set place of performance to your state or region to surface local work.
Set the time period
The last two to three fiscal years is usually enough to reveal a pattern of who buys and how often.
Sort the results
Sort the award table by agency or by dollar value to see who spends the most in your space.
How to Read an Award Record
Click any award to open its profile page. These are the fields that matter most for market research:
- Recipient — the vendor that won the work (your incumbent or a competitor).
- Awarding agency and office — the actual buyer, down to the contracting office.
- Obligated vs. potential amount — money spent so far versus the ceiling if all options are exercised.
- Period of performance — start and end dates. The end date is your recompete signal.
- Sub-awards — if the prime subcontracted part of the work, you may see who to approach for teaming.
Finding Recurring Buyers in Your NAICS
Group your results by awarding agency and look for the buyers that appear again and again. An agency that has awarded a dozen contracts in your NAICS over three years is a high-probability target; one with zero is not. This is how you replace guesswork with evidence — and it feeds directly into building a target agency list of the 5–10 buyers worth your time.
Finding Incumbents and Recompete Timing
The recipient on each award is the incumbent for that work. Combine that with the period-of-performance end date and you can see both who holds the contract and when it’s likely to come around again. For a deeper method — sizing up the incumbent and identifying who else will bid — see finding incumbents and likely competitors.
The field most small businesses skip is the period of performance. That end date tells you when the work comes up for recompete — and the best time to start building a relationship with that contracting office is roughly a year before it. Find a contract expiring in twelve to eighteen months, in your NAICS and in your backyard, and you’ve just found your best opportunity on the board. Everyone else is watching the open solicitations; the winners are watching the clock on the ones already awarded.
USAspending vs. SAM.gov vs. FPDS
After the FPDS change, it’s worth knowing which tool to reach for:
| Tool | Best for | Account? | Status |
|---|---|---|---|
| USAspending.gov | Government-wide spending trends, totals, and quick market scans | No account | Active |
| SAM.gov award search | Granular individual contract award records | Free account | Active — replaced FPDS on Feb 24, 2026 |
| FPDS.gov | (Former) public contract-award search | — | Retired; consolidated into SAM.gov |
Most small businesses start in USAspending for the fast picture, then drill into SAM.gov for the specific record. We break down the difference in SAM contract data vs FPDS.
Limitations to Keep in Mind
USAspending is powerful but not perfect. Data can lag by weeks, agency reporting isn’t always complete, and classification errors happen. Treat it as strong directional intelligence — then cross-check a promising find against the granular record in SAM.gov before you build a whole pursuit around it.
Want Help Turning Award Data Into a Pipeline?
Biz2Gov helps small businesses read the market, target the right buyers, and build a working opportunity pipeline. Founded by former DoD Contracting Officer Bruce Ayres, we provide hands-on implementation — not just advice.
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