# How do I check if a company is small for a NAICS code with an API? Compare the firm's average annual receipts or average employees with the SBA size standard for that NAICS code in 13 CFR 121.201. The size-standard endpoint here does the comparison: send the code and revenue_usd or employees and it returns the standard, the measure and whether the firm counts as small, for 1 credit. The reference table here holds 978 size standards from the 1 Nov 2026 eCFR text.Checked on 2026-11-15.Official source: [13 CFR 121.201](https://www.ecfr.gov/current/title-13/section-121.201) | Rule | 13 CFR 121.201 | | --- | --- | | Example | 541512: $34 million receipts | | Size standards loaded | 978 | | Table date | 1 Nov 2026 | ## The answer in detail Size standards are either receipts-based (average annual receipts, usually over the last five years) or employee-based (average employees over the last 24 months). For example, 541512 Computer Systems Design Services is $34 million in receipts, and some codes carry footnotes with industry-specific exceptions.The reference table here holds 978 size standards from the 1 Nov 2026 eCFR text. SBA proposed changes on 20 Aug 2026; proposed standards are not in effect until a final rule is published, and the API returns the current ones.Affiliation rules can make a firm other than small even when its own numbers fit; the check covers the numbers only. ## How the options compare | Option | Price | Access and limits | Coverage and history | Best for | Checked | | --- | --- | --- | --- | --- | --- | | [SAM.gov APIs (official)](https://open.gsa.gov/api/entity-api/) | Free | 10 requests a day with no SAM.gov role, 1,000 with a role or a non-federal system account; keys expire every 90 days | The live, authoritative record: entities, opportunities, exclusions, contract awards, hierarchy, subawards | Anyone who needs the official record itself, at low volume | 2026-11-12 | | [samgovapi.io](https://samgovapi.io/pricing) | Free (100 credits a month, no card); Developer $49/mo, Pro $149/mo, Scale $499/mo | 20 to 180 requests a minute by plan, no daily cap; REST, MCP and keyless MCP search | 881,370 entities (1 Nov 2026 extract), 74,420 notices, 169,191 exclusions, 114,954 awards since 1 Oct 2026 | Developers and AI agents who want entities, bids and exclusions joined in one API | 2026-11-15 | ## Where samgovapi.io is the weaker choice - Affiliation and the five-year averaging are not computed; the check compares the numbers you send. ## Try it Is a firm with $28 million average receipts small for 541512? ``` curl "https://samgovapi.io/api/v1/naics/541512/size-standard?revenue_usd=28000000" \ -H "Authorization: Bearer $SAMGOVAPI_API_KEY" ``` ## Questions Is the size standard check free?The size standard checker page is free; the API call costs 1 credit.Do SBA's 2026 proposals apply yet?No. Proposed size standards apply only after a final rule is published. ## Related - [Size standard checker](https://samgovapi.io/size-standard-checker) - [Size standard](https://samgovapi.io/glossary/size-standard) - [API docs](https://samgovapi.io/docs) - [Pricing](https://samgovapi.io/pricing) - [Answers](https://samgovapi.io/answers)Updated 2026-11-15. Sources checked 2026-11-15.Independent. Not affiliated with, endorsed by or sponsored by GSA, SAM.gov or any U.S. government agency. Registering in SAM.gov is free at sam.gov.

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