SBA Size Standard Tool | RC2 Consulting

Size Standard Calculator

Enter your primary NAICS code, 3-year average annual receipts, and employee count — your size determination appears instantly

Step 1 — Select Your Industry Sector

Step 2 — Enter Business Details

Industry / NAICS Code Size standard will appear here

Primary NAICS Code (manual entry) Optional — overrides dropdown selection

3-Year Average Annual Receipts ($) Include all affiliate revenues per SBA affiliation rules (13 CFR § 121.103)

Total Employees (average, 12 months) Include all employees of affiliates — full-time, part-time, and temporary

Enter your industry and business details above

Your SBA small business determination and applicable set-aside eligibility will appear here in real time as you complete the fields above.

SBA Size Standards Reference — Key Industries (Effective March 2023)

NAICS Code	Industry / Description	Size Standard	Basis	Set-Aside Eligible?
311	Food Manufacturing	$47M	Revenue	✓ Yes, if under standard
315	Apparel Manufacturing	500 employees	Employees	✓ Yes, if under standard
316	Leather / Allied Products	500 employees	Employees	✓ Yes, if under standard
236	Building Construction	$45M	Revenue	✓ Yes, if under standard
238	Specialty Trade Contractors	$22M	Revenue	✓ Yes, if under standard
423–424	Wholesale Trade (Merchant)	250–500 employees	Employees	✓ Yes, if under standard
481	Air Transportation	1,500 employees	Employees	✓ Yes, if under standard
484	Trucking	$34M	Revenue	✓ Yes, if under standard
511–519	Information / Media	$47M	Revenue	✓ Yes, if under standard
5415	Computer Systems Design & Related Services	$34M	Revenue	✓ Yes, if under standard
5416	Management Consulting / Scientific	$19M–$47M	Revenue	✓ Yes, if under standard
5417	Scientific R&D Services	$34M–$47M or 1,000 employees	Revenue	✓ Yes, if under standard
5418	Advertising / Public Relations	$19M	Revenue	✓ Yes, if under standard
561	Administrative & Support Services	$19M–$47M	Revenue	✓ Yes, if under standard
562	Waste Management / Remediation	$19M–$47M	Revenue	✓ Yes, if under standard
611	Educational Services	$12M–$47M	Revenue	✓ Yes, if under standard
621	Ambulatory Health Care	$19M–$47M	Revenue	✓ Yes, if under standard
811	Repair & Maintenance	$9M–$19M	Revenue	✓ Yes, if under standard

Important: This table reflects commonly referenced size standards. Always verify your specific NAICS 6-digit code at the official SBA Size Standards Tool at sba.gov. Affiliates’ revenues and employees must be combined under SBA affiliation rules — consult counsel for complex ownership structures.

SBA Affiliation Rules — What Most Businesses Underestimate

The SBA’s affiliation rules (13 CFR § 121.103) require that the revenues and employees of all affiliated businesses be combined when determining whether a company qualifies as small. Affiliation exists when one entity has the power to control another — through ownership, management, contractual relationships, or economic dependence. The following relationships commonly trigger affiliation:

⚠ Triggers Affiliation

50%+ ownership by same individual / entity in multiple businesses · Shared management or key personnel across companies · Economic dependence (>70% revenue from one customer) · Common investments, facilities, or equipment

✓ Generally Safe

Minority ownership with no control rights · Arms-length customer relationships · Teaming agreements with no shared management · Franchise relationships (franchisee measures independently)

Affiliation determinations are fact-specific and context-dependent. If your business has any shared ownership, management, or contractual relationships with other entities, consult an SBA-qualified attorney before certifying your size status. False size certification triggers False Claims Act liability. Source: 13 CFR § 121.103; SBA OHA Size Protest Decisions.

Important Disclaimer: This tool provides general educational guidance based on publicly available SBA size standards. It does not constitute a legal size determination. Size standards are subject to change, and your specific NAICS code classification and affiliation analysis may vary. Always verify your size status using the official SBA Table of Size Standards and the SBA Size Standards Tool before certifying your size status in any federal procurement. False size certification is a federal violation.

Sources & Regulatory References

SBA — Table of Small Business Size Standards, Effective March 2023 — sba.gov
SBA — Size Standards Methodology White Paper (2019, updated 2023) — sba.gov
13 CFR Part 121 — SBA Size Standards Regulations — ecfr.gov
13 CFR § 121.103 — SBA Affiliation Rules — ecfr.gov
FAR 19.301 — Representation by the Offeror on Small Business Size — acquisition.gov

Questions About Your Size Determination?

RC2 Consulting helps businesses understand their size classification, affiliation risk, and certification eligibility before submitting to federal agencies.

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