← Blog · April 1, 2026

Set-Aside Contracts Explained: 8(a), HUBZone, SDVOSB, WOSB, and More

The federal government spent over $160 billion with small businesses in fiscal year 2024. A significant portion of that spending came through set-aside contracts — opportunities reserved exclusively for businesses that meet specific eligibility criteria.

If you're a small government contractor and you're not actively tracking set-aside opportunities, you're competing in a much larger pool than you need to. Set-asides narrow the field, often dramatically, giving qualified businesses a real competitive advantage.

This guide covers the major set-aside programs, who qualifies for each, and how to use them to find contracts you're positioned to win.

What Is a Set-Aside Contract?

A set-aside contract is a federal procurement reserved for a specific category of business. When a contracting officer "sets aside" an opportunity, only businesses that meet the program's eligibility requirements can compete.

The government uses set-asides to meet statutory goals for small business participation. Federal agencies are required to direct a percentage of contract dollars to small businesses, and specific percentages to socioeconomic subcategories — 8(a) firms, HUBZone businesses, service-disabled veteran-owned firms, and women-owned firms.

Set-asides can apply to the full contract value ("total set-aside") or a portion of it ("partial set-aside"). The vast majority are total set-asides.

Why Set-Asides Matter

The math is straightforward. On a full-and-open contract, you might compete against 20-50 companies, including large defense contractors and established incumbents. On a set-aside, you might compete against 5-10 eligible firms.

Fewer competitors means higher win rates. For small businesses building past performance, set-asides are often the fastest path to your first federal contract.

The Major Set-Aside Programs

Small Business Set-Aside

Who qualifies: Any business that meets the SBA size standard for the contract's NAICS code.

Government goal: 23% of prime contract dollars to small businesses.

This is the broadest set-aside category. If your company qualifies as small under the relevant NAICS code (based on annual revenue or employee count), you can compete for small business set-asides.

Small business set-asides are the most common type you'll see on SAM.gov. They're required whenever a contracting officer expects at least two small businesses can perform the work at a fair price — known as the "Rule of Two."

Key point: Your size status is determined by the specific NAICS code assigned to the contract, not your overall business size. A company might be small under one NAICS code and other-than-small under another.

8(a) Business Development Program

Who qualifies: Small businesses owned and controlled by socially and economically disadvantaged individuals. The business must be certified by the SBA.

Government goal: 5% of prime contract dollars.

The 8(a) program is the most well-known and arguably most powerful set-aside program. It offers:

• Sole-source contracts up to $4.5 million (services) or $7 million (manufacturing) — meaning no competition at all
• Competitive 8(a) set-asides for larger opportunities
• Mentorship and business development support from the SBA
• Joint ventures with larger firms (mentor-protégé program)

The program lasts nine years, with a four-year developmental stage and a five-year transitional stage. During the program, companies can receive sole-source awards that build past performance without competitive pressure.

Eligibility requirements:

• Business must be at least 51% owned by one or more disadvantaged individuals
• Owner must have a personal net worth under $850,000 (at time of application, excluding primary residence and business value)
• Owner must demonstrate social disadvantage (based on race, ethnicity, gender, disability, or individual circumstances)
• Business must be operational for at least two years (waivable in some cases)
• Business must meet the size standard for its primary NAICS code

Application process: Apply through the SBA's certify.sba.gov portal. The process typically takes 2-3 months and requires extensive documentation of personal and business finances.

HUBZone Program

Who qualifies: Small businesses headquartered in a Historically Underutilized Business Zone with at least 35% of employees residing in a HUBZone.

Government goal: 3% of prime contract dollars.

HUBZone is a location-based program designed to drive economic development in underserved areas. The "zones" include:

• Rural areas with low population
• Urban areas with high unemployment or low median income
• Indian reservations and territories
• Disaster areas
• Military base closures (BRAC areas)

Eligibility requirements:

• Business must be small under its primary NAICS code
• Principal office must be in a HUBZone (check the HUBZone map at maps.certify.sba.gov)
• At least 35% of employees must live in a HUBZone
• Must be at least 51% owned and controlled by U.S. citizens
• Must be SBA-certified

Key advantage: HUBZone firms receive a 10% price evaluation preference on full-and-open competitions, in addition to access to HUBZone set-asides and sole-source awards.

Sole-source threshold: $4.5 million (services) or $7 million (manufacturing).

Service-Disabled Veteran-Owned Small Business (SDVOSB)

Who qualifies: Small businesses owned and controlled by service-disabled veterans.

Government goal: 3% of prime contract dollars.

SDVOSB set-asides recognize the sacrifice of disabled veterans by providing contracting opportunities for businesses they own. The program applies government-wide, with the VA having additional requirements through its Veterans First program.

Eligibility requirements:

• Owner must be a veteran with a service-connected disability rating from the VA
• Veteran must own at least 51% of the business
• Veteran must control the management and daily operations
• Business must be small under the relevant NAICS code
• Must be certified through the SBA's Veteran Small Business Certification (VetCert) program at vetcert.sba.gov

Note on VA contracts: The VA applies a slightly different rule. For VA set-asides, SDVOSB and Veteran-Owned Small Business (VOSB) firms receive priority in the VA's tiered evaluation system, known as the "Veterans First" contracting program.

Sole-source threshold: $4.5 million (services) or $7 million (manufacturing).

Women-Owned Small Business (WOSB) and Economically Disadvantaged Women-Owned Small Business (EDWOSB)

Who qualifies: Small businesses at least 51% owned and controlled by one or more women (WOSB) or economically disadvantaged women (EDWOSB).

Government goal: 5% of prime contract dollars.

WOSB set-asides are available in industries where women-owned businesses are underrepresented. The SBA maintains a list of eligible NAICS codes — not all industries qualify.

EDWOSB set-asides cover an even narrower set of industries where the underrepresentation is more severe.

Eligibility requirements:

• Business must be at least 51% owned and controlled by one or more women who are U.S. citizens
• Women must manage the day-to-day operations and make long-term strategic decisions
• Business must be small under the relevant NAICS code
• Must be certified through SBA, an SBA-approved third-party certifier, or self-certify through SAM.gov
• For EDWOSB: personal net worth of each woman owner must be less than $750,000 (excluding primary residence and business)

Sole-source threshold: $4.5 million (services) or $7 million (manufacturing).

Other Set-Aside Categories

Indian Economic Enterprise (IEE) Set-Asides

Available through the Bureau of Indian Affairs and some Department of Interior contracts. Reserved for businesses owned by members of federally recognized Indian tribes.

AbilityOne

Not technically a set-aside, but a mandatory source program. Certain products and services on the AbilityOne Procurement List must be purchased from nonprofit agencies employing people who are blind or have significant disabilities.

How to Find Set-Aside Contracts

Using SAM.gov

SAM.gov allows you to filter contract opportunities by set-aside type. Under the search filters, look for "Type of Set-Aside" and select the relevant category.

The challenge with SAM.gov is volume. Filtering by set-aside type still returns hundreds of opportunities, and each listing requires reading through the full solicitation to determine if it matches your capabilities.

Using GovLens

GovLens makes set-aside search faster. Filter by set-aside type and NAICS code simultaneously, and get AI-generated summaries of each opportunity so you can quickly evaluate relevance without reading full solicitation documents.

You can save these filtered searches and receive daily email alerts when new set-aside opportunities matching your criteria are posted — so you never miss a relevant opportunity during the typical 15-30 day response window.

Combining Filters for Best Results

The most effective approach is to combine set-aside type with:

• Your NAICS codes — only see contracts in your industry
• Dollar range — focus on contracts sized for your capacity
• Agency — prioritize agencies where you have past performance or relationships
• Keywords — narrow by specific service descriptions

For example, an 8(a)-certified IT services company might search for: 8(a) set-aside + NAICS 541512 + keyword "cloud migration." That search returns a much more actionable list than browsing all 8(a) opportunities.

Stacking Certifications

Many small businesses qualify for multiple set-aside programs. An 8(a)-certified company in a HUBZone with a service-disabled veteran owner could potentially compete for 8(a), HUBZone, SDVOSB, and general small business set-asides.

Multiple certifications expand the universe of opportunities available to you. Each additional certification opens another set of set-aside contracts.

However, each certification has its own application process, compliance requirements, and recertification schedule. Evaluate the opportunity cost of pursuing each one:

• 8(a) is the highest-value program for most firms — pursue this first if eligible
• SDVOSB has a straightforward certification if the owner qualifies
• HUBZone requires ongoing compliance with the 35% employee residency requirement
• WOSB is industry-dependent — check if your NAICS codes are eligible

Common Mistakes with Set-Aside Contracts

Not certifying early enough. Certification processes take months. Start the application well before you plan to bid. An 8(a) application started today won't help you bid on an opportunity closing next month.

Bidding on set-asides you're not certified for. Your self-representation in SAM.gov must be accurate and current. Bidding on a set-aside without the required certification is a compliance violation.

Ignoring the NAICS code size standard. Your eligibility for a specific set-aside is tied to the contract's NAICS code, not your overall business profile. Verify you meet the size standard for each opportunity's assigned NAICS code.

Not tracking set-aside opportunities daily. Set-aside contracts often have shorter response windows and smaller applicant pools. A two-day delay in finding an opportunity can mean missing the deadline entirely.

Assuming set-asides are less competitive. While the pool is smaller, the competition is often intense and sophisticated. Winning still requires a strong proposal, competitive pricing, and relevant past performance.

Getting Started

1. Determine your eligibility. Review each program's requirements against your business profile. The SBA's eligibility tool at sba.gov/federal-contracting/contracting-assistance-programs can help.
2. Apply for certifications. Start with the program that opens the most opportunities for your business. For most firms, that's either 8(a) or SDVOSB.
3. Update your SAM.gov profile. Ensure your certifications, NAICS codes, and business information are current.
4. Set up filtered searches. Create saved searches for your set-aside type + NAICS codes so you're alerted to new opportunities immediately.
5. Build past performance. Use set-aside wins to build the contract history that qualifies you for larger opportunities later.

GovLens helps small businesses find set-aside contracts faster with AI-powered search and daily email alerts. Sign up free to start tracking opportunities in your set-aside categories today.