Free Tool
SBA Size Standards Calculator
Find your NAICS size standard and instantly check whether your business qualifies as small for federal set-aside contracts.
Step 1 — Find your NAICS code
Search for your primary NAICS code above. Size standards vary by industry — some are revenue-based, others are employee-based.
SBA size standards — key facts
- The SBA sets size standards for over 1,000 NAICS codes across all U.S. industries.
- Most professional services size standards range from $8M to $47.5M in annual revenue.
- Manufacturing size standards are employee-based, typically ranging from 500 to 1,500 employees.
- Affiliates' revenue and employees are counted together under SBA affiliation rules (13 CFR Part 121).
- IT services (NAICS 541512) size standard is $34M annual revenue as of the most recent SBA update.
- Engineering services (NAICS 541330) size standard is $25.5M annual revenue.
Find set-aside contracts that match your NAICS codes
BidStride monitors 112,000+ opportunities across SAM.gov and 50+ procurement portals and filters them to your size and certifications.
Frequently asked questions about SBA size standards
The SBA sets size standards by NAICS code that define the maximum size a business can be and still qualify as a "small business" for federal contracting purposes. Exceeding the standard for your primary NAICS code makes you ineligible for small business set-aside contracts under that code.
Yes. The SBA periodically reviews and updates size standards, typically every 5 years. Always verify the current standard on SBA.gov before submitting a proposal — this tool provides reference data and is not a substitute for official SBA tables.
Your size is determined by the NAICS code assigned to the specific solicitation you are bidding on — not necessarily your primary code. You must qualify under that solicitation's code at the time you submit your offer.
Generally yes. Under SBA affiliation rules (13 CFR Part 121), revenue and employees of affiliated businesses — those with common ownership or control — are typically counted together. This is one of the most common reasons contractors inadvertently exceed size standards.
False self-certification as a small business is a violation of the False Claims Act and can result in contract termination, debarment, suspension, and civil or criminal penalties. When in doubt, consult an SBA-approved attorney before certifying.
Yes. Any interested party can file a size protest with the SBA within 5 business days of contract award. The SBA will issue a formal size determination, and that ruling can be appealed to the SBA's Office of Hearings and Appeals (OHA).