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    NAICS Codes for Government Contracting

    NAICS (North American Industry Classification System) codes classify businesses by industry across the US, Canada, and Mexico. In government contracting, NAICS codes determine which opportunities your company is eligible to bid on.

    What are NAICS codes?

    NAICS codes are 6-digit numbers that classify business establishments by their primary activity. The first two digits identify the sector (e.g., 54 = Professional Services), and additional digits provide finer classification. They replaced SIC codes in 1997.

    NAICS codes in SAM.gov

    Every contract opportunity on SAM.gov is tagged with a NAICS code. This classification affects small business size standards—the revenue or employee thresholds that determine whether your firm qualifies as a small business for that particular contract.

    Common NAICS codes for government contractors

    541512: Computer systems design. 541330: Engineering services. 236220: Commercial building construction. 541611: Management consulting. 511210: Software publishing. Knowing your primary NAICS codes helps you target the right opportunities.

    Using NAICS codes with Jorpex

    Include NAICS codes as keywords in your Jorpex notification profiles to filter SAM.gov opportunities by industry classification. Combine with plain-language keywords for comprehensive coverage across US federal procurement.

    Frequently asked questions

    What NAICS code should I use for government contracts?

    Your primary NAICS code should match your core business activity. Common codes: 541512 (IT), 541330 (engineering), 236220 (construction), 541611 (consulting).

    How do NAICS codes affect small business eligibility?

    The SBA sets size standards per NAICS code. Your firm must meet the revenue or employee threshold for the specific NAICS code assigned to a contract to qualify as a small business.

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    Related resources

    Glossary

    SAM.gov — System for Award Management

    SAM.gov is the US federal government’s official website for entity registration and contract opportunity discovery.

    Glossary

    CPV Codes Explained

    CPV (Common Procurement Vocabulary) codes are the classification system used across EU public procurement. Every tender published on TED is tagged with CPV codes that describe the goods, services, or works being procured.

    Use Cases

    Tender Alerts for Government Contractors

    Government procurement is the largest addressable market for many B2B companies, but finding relevant tenders manually is slow and error-prone. Jorpex automates the entire discovery process so your team can focus on writing winning proposals instead of scrolling portals.

    Further reading