SBA Size Standards Explained: Does Your Business Qualify as 'Small' for Government Contracts?
One of the biggest advantages small businesses have in government contracting is access to set-aside contracts — opportunities reserved exclusively for small businesses. But "small" doesn't mean what you might think.
The Small Business Administration (SBA) defines size standards differently for every industry, based on your NAICS code. A company with 500 employees might be "small" in one industry and "large" in another.
Understanding your size standard is critical. If you exceed it, you can't bid on set-aside contracts — and you could face serious legal consequences for misrepresenting your size.
How Size Standards Work
The SBA assigns a size standard to every NAICS code. There are two types:
Revenue-Based Standards
Most service and construction industries use annual average revenue over the past 5 fiscal years:
| Industry Example | NAICS | Size Standard |
|---|---|---|
| IT Consulting | 541512 | $34 million |
| Management Consulting | 541611 | $24.5 million |
| Engineering Services | 541330 | $25.5 million |
| Commercial Construction | 236220 | $45 million |
| Janitorial Services | 561720 | $22 million |
Employee-Based Standards
Manufacturing, mining, and some other industries use average employee count over the past 12 months:
| Industry Example | NAICS | Size Standard |
|---|---|---|
| Software Publishing | 511210 | 1,250 employees |
| Computer Manufacturing | 334111 | 1,250 employees |
| Petroleum Refineries | 324110 | 1,500 employees |
| General Freight Trucking | 484121 | 1,000 employees |
How to Find Your Size Standard
- Identify your primary NAICS code(s) — The code should describe your principal revenue-generating activity
- Look up the standard on SBA's size standards table or search by NAICS code
- Calculate your size — Use 5-year average annual receipts (revenue-based) or 12-month average employee count (employee-based)
If your business falls under the threshold for your NAICS code, you qualify as a small business for contracts using that NAICS code.
Important Nuances
Your Size Can Vary by NAICS Code
If you bid on contracts in multiple NAICS codes, your "small" status is evaluated separately for each one. You might be small under NAICS 541512 (IT consulting, $34M threshold) but large under NAICS 541511 (custom programming, $34M threshold) if the thresholds differ.
Affiliation Rules Matter
The SBA doesn't just look at your company in isolation. If you have affiliates — companies you control, that control you, or that share common ownership — their revenue and employees count toward your size too.
Common affiliation triggers:
- Ownership — Owning 50%+ of another company
- Management — Shared officers, directors, or key employees
- Joint ventures — Depending on structure
- Subcontracting relationships — If a subcontractor performs the primary work
Size Determination Timing
Your size is generally evaluated at the time you submit your initial offer, including price. For multiple-award contracts, size can be re-evaluated at the order level.
If you're growing close to the threshold, time your bids carefully.
Size Standard Programs for Extra Advantage
Beyond the general "small business" set-aside, several programs offer additional contracting preferences:
8(a) Business Development Program
- For socially and economically disadvantaged small businesses
- 9-year program with sole-source and set-aside access
- Size standard: must be small under your NAICS code
HUBZone Program
- For businesses in Historically Underutilized Business Zones
- 10% price evaluation preference on full-and-open contracts
- Requires principal office in a HUBZone + 35% of employees living in HUBZones
Service-Disabled Veteran-Owned Small Business (SDVOSB)
- For businesses owned 51%+ by service-disabled veterans
- VA has mandatory SDVOSB set-aside goals
- Certification now required through SBA (previously self-certified)
Women-Owned Small Business (WOSB/EDWOSB)
- For businesses owned 51%+ by women
- EDWOSB (Economically Disadvantaged) has access to additional NAICS codes
- Certification through SBA or approved third-party certifiers
Mentor-Protege Programs
- Allow small businesses to joint venture with larger firms
- The protege's size standard applies to the joint venture
- Available through SBA's All Small Mentor-Protege Program and agency-specific programs
What Happens If You Exceed Your Size Standard?
If your business grows past the size standard:
- Existing contracts continue — You won't lose contracts already awarded
- Future set-aside bids stop — You can no longer bid on set-aside contracts for that NAICS code
- Recertification — For long-term contracts, you may need to recertify your size
- Options exist — You can pivot to NAICS codes with higher thresholds, mentor smaller firms, or compete in full-and-open procurements
Practical Tips
- Track your trailing 5-year revenue quarterly so you're never surprised
- Choose NAICS codes strategically — If two codes fit your work, the one with the higher size standard gives you more runway
- Get a formal size determination from the SBA if you're close to the line or facing a size protest
- Don't misrepresent — Size fraud is a federal offense with criminal penalties, civil fines, and debarment
Finding Set-Aside Opportunities Matched to Your Size
Once you know your size standard and qualifying programs, the next step is finding relevant set-aside contracts efficiently.
GovLens matches contract opportunities to your NAICS codes and highlights set-aside designations — 8(a), HUBZone, SDVOSB, WOSB — so you can quickly filter for contracts where you have a competitive advantage. Set up daily alerts and never miss a relevant set-aside opportunity.