WOSB Certification: Requirements, Application, and Set-Aside Opportunities

The Women-Owned Small Business (WOSB) Federal Contracting Program was created to address the persistent underrepresentation of women-owned businesses in certain industries within federal contracting. The program provides set-aside and sole-source contract opportunities exclusively for certified women-owned firms.

There are two certification levels within the program:

• WOSB (Women-Owned Small Business) — for businesses at least 51% owned and controlled by women who are U.S. citizens. WOSB set-asides are available only in NAICS codes designated as substantially underrepresented by the SBA.
• EDWOSB (Economically Disadvantaged Women-Owned Small Business) — for women-owned businesses where the women owners also meet specific economic disadvantage thresholds. EDWOSB set-asides are available in both underrepresented and substantially underrepresented NAICS codes — giving EDWOSB firms access to a broader range of opportunities.

The federal government has a statutory goal of awarding 5% of all federal prime contract dollars to women-owned small businesses. This goal drives agencies to actively seek out and set aside contracts for WOSB and EDWOSB firms, creating real demand for certified businesses.

Unlike the 8(a) program, which is time-limited to nine years, the WOSB/EDWOSB program does not have a fixed participation term. Certification remains valid as long as you continue to meet the eligibility requirements and complete periodic recertification reviews.

A critical distinction: WOSB/EDWOSB set-asides are not available in every industry. They are limited to specific NAICS codes designated by the SBA. Understanding which NAICS codes are eligible is essential before pursuing certification.

To qualify for WOSB certification, your business must meet the following requirements:

• The business must be small under its primary NAICS code size standard
• At least 51% unconditionally and directly owned by one or more women who are U.S. citizens
• The women owners must control the management and daily business operations — they must hold the highest officer position and make long-term strategic decisions for the company
• The women owners must manage the day-to-day operations, including authority over hiring, contract negotiations, business development, and financial decisions

Ownership must be direct — trust arrangements, pass-through entities, or structures where men ultimately control the business do not qualify. The SBA will examine your operating agreement, bylaws, and actual business practices to verify that women genuinely own and control the company.

EDWOSB Additional Requirements

To qualify as an Economically Disadvantaged WOSB (EDWOSB), you must meet all WOSB requirements plus demonstrate economic disadvantage based on these thresholds:

• Personal net worth under $850,000 — excluding the value of the business and the owner's primary residence
• Adjusted gross income of $400,000 or less — averaged over the three most recent tax years
• Total assets of $6.5 million or less — including the value of the primary residence and the business

These economic disadvantage thresholds are assessed for each woman owner who is relied upon for the 51% ownership and control requirement. You will need to provide personal financial statements, tax returns, and supporting documentation to prove you meet these thresholds.

If you meet the EDWOSB economic thresholds, you should strongly consider applying for EDWOSB rather than just WOSB — EDWOSB provides access to a significantly broader set of eligible NAICS codes.

This is one of the most important — and most misunderstood — aspects of the WOSB program: set-aside contracts are only available in specific NAICS codes designated by the SBA. Not every industry has WOSB or EDWOSB set-asides.

The SBA classifies eligible NAICS codes into two categories:

• Substantially Underrepresented Industries — NAICS codes where women-owned businesses are significantly below their expected participation rate. Both WOSB and EDWOSB firms can compete for set-asides in these codes.
• Underrepresented Industries — NAICS codes where women-owned businesses are below expected participation but not as severely. Only EDWOSB firms can compete for set-asides in these codes.

This is a key differentiator from other SBA certifications. Programs like 8(a), SDVOSB, and HUBZone allow set-asides across all NAICS codes. The WOSB program is limited to designated codes, which makes understanding your NAICS eligibility essential before you invest time in the application.

How to check if your NAICS code is eligible:

1. Visit certify.sba.gov and look for the WOSB eligible NAICS codes list
2. Search for your primary NAICS code on the published list
3. Check whether it falls under "substantially underrepresented" (eligible for both WOSB and EDWOSB) or "underrepresented" (eligible for EDWOSB only)
4. If your NAICS code is not on either list, WOSB/EDWOSB set-asides are not available in your industry — though certification may still provide other advantages like meeting agency diversity goals

The SBA periodically reviews and updates the list of eligible NAICS codes based on federal contracting data. Keep an eye on any updates that may add or remove your NAICS codes from the program.

Certification as a WOSB or EDWOSB provides tangible competitive advantages in federal contracting:

Set-Aside Contracts

Contracting officers can restrict competition to certified WOSB or EDWOSB firms in eligible NAICS codes. This means you are competing only against other certified women-owned businesses — not the full universe of small businesses or large contractors.

Sole-Source Awards

Contracting officers can award sole-source contracts to WOSB and EDWOSB firms without competition, subject to these dollar thresholds:

• Up to $4.5 million for service contracts
• Up to $8 million for manufacturing contracts

A sole-source award means you are the only bidder — no proposal competition, no lowest-price pressure. This is one of the most valuable benefits of any SBA certification.

5% Federal Contracting Goal

The statutory goal of 5% of all federal contract dollars going to women-owned small businesses creates pressure on agencies to find and award contracts to certified firms. Agencies that are behind on this goal actively seek out WOSB/EDWOSB opportunities.

EDWOSB Advantage

EDWOSB certification provides access to both underrepresented and substantially underrepresented NAICS codes, while WOSB certification is limited to substantially underrepresented codes only. This means EDWOSB firms have a broader pool of eligible set-aside opportunities. If you qualify for EDWOSB, it is always the better choice.

Competitive Positioning

Beyond the legal set-aside advantages, WOSB/EDWOSB certification signals to contracting officers and prime contractors that your ownership and control have been verified by the SBA. This can help you win subcontracting roles, get included on team arrangements, and build relationships with agencies focused on meeting their women-owned contracting goals.

All WOSB and EDWOSB certifications must be obtained through the SBA. Third-party certifiers are no longer accepted — if you were previously certified through a third-party organization, you must recertify through the SBA to maintain your status.

Step 1: Verify Your Eligibility

Before starting the application, confirm that you meet all ownership, control, and size requirements. For EDWOSB, verify that you meet the economic disadvantage thresholds. Check that your primary NAICS code is on the SBA's eligible list for WOSB or EDWOSB set-asides.

Step 2: Gather Required Documents

Prepare the following documentation before starting the online application:

• Proof of U.S. citizenship — birth certificate, passport, or naturalization certificate for each woman owner
• Business formation documents — articles of incorporation, operating agreement, partnership agreement, or bylaws
• Ownership documentation — stock certificates, membership certificates, or other evidence of ownership percentages
• Personal and business tax returns — typically the three most recent years
• Business financial statements — current balance sheet and income statement
• Resumes of all owners and key officers
• For EDWOSB only: personal financial statements, documentation of all assets, income verification, and any supporting evidence of economic disadvantage

Step 3: Complete the Application on certify.sba.gov

Create an account at certify.sba.gov and complete the WOSB or EDWOSB application. Upload all required documents and answer each question thoroughly. Incomplete applications are the most common cause of delays.

Step 4: SBA Review

The SBA reviews your application, which typically takes 60 to 90 days. During this period, the SBA may request additional documents or clarification. Respond promptly to any requests — delays in your response extend the review timeline.

Step 5: Certification Decision

You will be notified of approval or denial. If denied, you will receive an explanation and information on the appeal process. Most denials stem from documentation gaps rather than fundamental ineligibility issues, and a corrected resubmission often succeeds.

There is no cost to apply. The SBA does not charge any fees for WOSB or EDWOSB certification. Be cautious of any third party that implies otherwise.

If you meet the economic disadvantage thresholds for EDWOSB, always apply for EDWOSB. Here is why:

EDWOSB includes all WOSB benefits — plus more. EDWOSB certification gives you access to set-asides in both underrepresented and substantially underrepresented NAICS codes. WOSB certification only covers substantially underrepresented codes. Choosing WOSB when you qualify for EDWOSB means leaving opportunities on the table.

Decision framework:

• You meet EDWOSB economic thresholds (net worth under $850K, average AGI under $400K, total assets under $6.5M) → Apply for EDWOSB. You will automatically qualify for all WOSB set-asides as well.
• You do not meet EDWOSB thresholds but meet WOSB ownership and control requirements → Apply for WOSB. You will have access to set-asides in substantially underrepresented NAICS codes.
• Your NAICS code is not on either eligible list → Certification may still be worth pursuing for prime contractor teaming and agency diversity goals, but you will not have access to WOSB/EDWOSB set-aside contracts in your primary industry.

Can you switch from WOSB to EDWOSB later? Yes. If your financial circumstances change and you meet the EDWOSB thresholds, you can apply for EDWOSB certification. Similarly, if your income or net worth grows beyond EDWOSB thresholds, you may need to transition to WOSB-only status at recertification.

WOSB/EDWOSB with other certifications: You can hold WOSB or EDWOSB alongside other SBA certifications. For example, a woman service-disabled veteran could hold both SDVOSB and EDWOSB certifications. A woman-owned business in a HUBZone could hold both HUBZone and WOSB. You can also hold WOSB/EDWOSB and 8(a) certification simultaneously. Stacking certifications maximizes your eligible opportunity pool.

Certification is only the first step. Here is how to find and win WOSB and EDWOSB set-aside contracts:

Search SAM.gov for Opportunities

Use SAM.gov to search for active contract opportunities. Filter by set-aside type to find WOSB and EDWOSB set-asides. You can also set up saved searches to receive email notifications when new opportunities matching your NAICS codes and set-aside type are posted.

Verify Your NAICS Code Eligibility

Before pursuing any WOSB/EDWOSB set-aside, confirm that the solicitation's NAICS code is on the SBA's eligible list. A WOSB set-aside in a non-eligible NAICS code would be improper, and you should verify eligibility before investing time in a proposal.

Build Relationships with Agency OSDBU Offices

Every federal agency has an Office of Small and Disadvantaged Business Utilization (OSDBU). These offices are specifically tasked with helping small businesses — including women-owned firms — connect with contracting opportunities. Introduce yourself and your capabilities to OSDBU representatives at your target agencies. They can point you to upcoming opportunities and connect you with contracting officers.

Target Agencies with Low Women-Owned Scorecards

The SBA publishes annual small business procurement scorecards that grade each agency on how well they meet statutory goals, including the 5% women-owned goal. Agencies that receive low grades for women-owned contracting are under pressure to improve — making them more likely to set aside contracts for WOSB/EDWOSB firms. Research the scorecards and prioritize agencies where your capabilities align with their spending needs and where they are falling short on women-owned goals.

Pursue Sole-Source Opportunities

Build direct relationships with contracting officers who buy what you sell. If they know you are a certified WOSB or EDWOSB, they can award you sole-source contracts up to $4.5M (services) or $8M (manufacturing) in eligible NAICS codes. Sole-source awards require you to be the only certified firm the CO approaches, so strong relationships and a clear understanding of the agency's needs are essential.

Leverage Subcontracting Plans

Large prime contractors with contracts over $750,000 are required to have small business subcontracting plans that include goals for women-owned businesses. Position yourself as a WOSB/EDWOSB subcontractor to prime contractors who need to meet their subcontracting goals. This can provide revenue and past performance while you build toward prime contracting.