NAICS and PSC codes are the classification system that organizes the entire federal marketplace. They determine which opportunities you see, whether you count as a small business for a given contract, and how agencies categorize the work they buy. For BD teams, understanding these codes is foundational: get them wrong and you will miss opportunities you should be winning.
What NAICS codes are
The North American Industry Classification System (NAICS) assigns a code to every type of business activity. In federal contracting, each solicitation is tagged with a NAICS code, and each code carries a small-business size standard: a revenue or employee threshold that determines whether your firm qualifies as small for that opportunity. Your primary NAICS reflects your main line of business, but most contractors legitimately operate under several.
What PSC codes are
Product Service Codes (PSC) classify what is actually being bought, the specific product or service, rather than the industry of the seller. Where NAICS describes your business, PSC describes the deliverable. Agencies use PSC codes to categorize spending, and they are a useful second dimension for finding and analyzing opportunities.
Why the right codes matter
These codes drive real outcomes for your BD:
- They filter which opportunities appear in your searches
- They determine small-business size eligibility per contract
- They shape how agencies find and categorize vendors
- They affect competitor and market analysis in award data
Choosing and managing your codes
Select NAICS codes that genuinely reflect your capabilities, and keep your SAM.gov registration aligned with them. Casting too wide a net dilutes your positioning; too narrow and you miss adjacent work you can perform. Review your codes periodically as your business evolves, and use both NAICS and PSC when searching so you catch opportunities classified either way.
Put codes to work in your pipeline
Codes are most valuable when they drive your opportunity intake automatically (filtering searches, populating cards, and informing eligibility) rather than being something you check manually each time.
BiD uses your NAICS codes and capabilities to import and filter opportunities and to power AI scoring and generation across the platform. Set up your profile once and let it work for every opportunity. Start a free 14-day trial at bid.avvyd.app.