PSC B504

B504: STUDY/CHEMICAL-BIOLOGICAL

A product or service code names the item or service bought, whatever kind of business supplies it. Who buys this, who won it, what it went for and what recompetes soon.

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PSC B504 in numbers

8,995awards on recordFY2001 to FY2027

$1.77Bobligatedmedian $12.0K

525vendors that won

7open notices now

107ending within 12 months$160.09M last time

In the app

Everything behind these numbers for this PSC code

Every award under this product or service code
The buyers and the vendors behind it
Award sizes, competition and set-aside mix
Recompetes inside the horizon

The numbers above are open to anybody. The organized record behind them is what a plan pays for: every award, every buyer, every vendor, cleaned, resolved and read again every night.

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Sources: USASpending and SAM.gov. Updated Oct 12, 2026. Names as published; vendor records resolved by UEI, CAGE and name.

Open notices

Open right now under PSC B504

7 open notices right now. The newest 5:

Posted	Notice	Buyer	NAICS	Set-aside	Due
Oct 5, 2026	Wheat DNA Library SequencingAward Notice · Raleigh NC	Southwestern Regional Office, Region 3	541380	SBA	not stated
Sep 30, 2026	Iron Stable Isotope AnalysisAward Notice · Fort Wainwright AK	W2R2 COLD RGNS RSCH ENG LAB	541380		not stated
Sep 29, 2026	B--SAP - Purchase of Retail Market Evaluation and GasAward Notice	LAB - ANN ARBOR, MI - CO OFFICE	541990		not stated
Sep 22, 2026	B--Whole Genome Sequencing ServicesAward Notice	DEPT OF COMMERCE NOAA	541990		not stated
Sep 18, 2026	B--Assessing Biodiversity using environmental DNA (eDAward Notice	DEPT OF COMMERCE NOAA	541990		not stated

From the SAM.gov opportunities API, refreshed daily. Each title opens that notice here, with what this office has actually bought beside it. Members see every open notice, filtered to their own codes, with an email the morning one posts.

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PSC and NAICS

Every federal award carries two codes. The NAICS code describes the kind of business the buyer expects to do the work; the PSC describes what is being bought. A machine shop and a distributor can both sell the same part, so following a PSC catches work that NAICS filters miss. The NAICS codes that pair with this PSC are listed above; each links to its own page.

Members can watch a PSC, filter every list by it, and see notices and recompetes for it in one place.

PSC codes explainedThe guide.
Every PSC on recordThe index.
Every NAICS codeThe other axis.

Sources used on this page: SAM.gov · USASpending.gov · SAM.gov contract awards

See who was last awarded in your NAICS

Every code, every buying office, every vendor and every recompete, organized from the federal record and read nightly. Open it with a plan.