For Buyers · 5 min read

How to Find Certified Women-Owned Suppliers

A practical guide to finding and verifying genuinely certified women-owned suppliers, including the difference between SBA WOSB, WBENC WBE, and NMSDC MBE credentials.

You found a women-owned vendor, but is it actually certified? And does "certified" even mean what your procurement team needs it to mean? The answer depends on whether you're buying as a federal agency, a prime contractor, or a private corporation. This guide walks through how to find and verify genuinely certified women-owned suppliers, the difference between the credentials, and where directory data can shorten the search.

What counts as a "certified" women-owned business?

"Women-owned" is a self-identification anyone can claim. "Certified" means a recognized body has reviewed ownership documents and confirmed the firm qualifies. For sourcing purposes there are three distinct credentials, issued by different organizations for different markets. A vendor may hold one, both, or none.

  • WOSB / EDWOSB (SBA): the federal contracting credential, used for government set-aside and sole-source awards. Governed by 13 CFR Part 127 and FAR Subpart 19.15.
  • WBE (WBENC): the corporate / private-sector supplier-diversity credential, used for Tier 1 and Tier 2 diverse-spend reporting.
  • MBE (NMSDC): a separate *minority*-owned credential, parallel to (not part of) the women-owned programs.

How do I verify that a federal supplier is really a certified WOSB?

Self-certification ended on October 15, 2020. After that date the SBA no longer accepts a vendor's self-attestation for WOSB set-aside or sole-source contracts; the firm must be formally certified. Certification is free through the SBA's MySBA Certifications portal (certifications.sba.gov), or through one of four SBA-approved third-party certifiers: WBENC, the National Women Business Owners Corporation, the U.S. Women's Chamber of Commerce, and the El Paso Hispanic Chamber of Commerce.

Under FAR Subpart 19.15, a contracting officer must, before award, confirm the apparent winner is designated as a certified WOSB or EDWOSB in SAM.gov, or has a pending application in the SBA's Small Business Search. A self-claimed "women-owned" label with no SBA certification does not qualify a firm for a WOSB award.

Is WBENC the same as WOSB certification?

No. They are different credentials for different buyers. WBENC's WBE certification is aimed at corporate and private-sector supplier-diversity programs; WOSB is the SBA federal contracting program. WBENC describes WBE as the most widely recognized national certification for women-owned businesses, and it validates ownership through documentation review plus a mandatory on-site visit.

One built-in shortcut exists: because WBENC is an SBA-approved third-party certifier, a firm applying for WBE certification can pursue WOSB certification at the same time through WBENC. But holding one credential does not automatically confer the other, and the renewal cadences differ: the SBA WOSB term runs three years, while WBENC's WBE credential is recertified annually.

What's the difference between WOSB and EDWOSB?

EDWOSB (Economically Disadvantaged Women-Owned Small Business) is a WOSB *plus* an added economic-disadvantage test on the owning woman or women. Every EDWOSB is also a WOSB. The base requirement for both is identical: a small business at least 51% unconditionally and directly owned and controlled by one or more women who are U.S. citizens, with those women managing day-to-day operations.

The EDWOSB economic-disadvantage thresholds, under 13 CFR 127.203 (current figures effective December 19, 2022) are:

  • Personal net worth less than $850,000 (excluding ownership interest in the firm and equity in the primary residence)
  • Adjusted gross income averaged over the prior three years of $400,000 or less
  • Total personal assets of $6.5 million or less

Where can I find a list of certified women-owned suppliers?

There are three practical sources. The authoritative federal registry is the SBA's Small Business Search, where a firm's WOSB or EDWOSB status appears on its profile. For corporate WBE suppliers, WBENC maintains its own certification registry. A curated directory can sit on top of these to make the search faster by industry and state.

The Womyn Owned directory aggregates 5,581 SBA-certified WOSB/EDWOSB B2B vendors across all 50 states plus DC and Puerto Rico, sourced from the SBA Small Business Search and USAspending.gov. Of those, 1,831 hold the EDWOSB designation, and 945 show federal contract activity totaling roughly $2.83 billion in obligations. Vendors are organized across about 18 industry categories, with the largest state counts in Virginia (520), California (494), Texas (489), Florida (472), Georgia (400), and Maryland (357).

Why are buyers actively sourcing women-owned suppliers?

Two drivers. On the public side, the federal government has a statutory goal of awarding at least 5% of contracting dollars to women-owned small businesses each year (15 U.S.C. 644(g)). On the corporate side, supplier diversity is a measured spend target: Hackett Group research found companies dedicated about 7.2% of spend to diverse-owned businesses and planned to raise that toward roughly 13% of total spend.

The supplier base is large enough to make this realistic. The U.S. Census Bureau (reference year 2023) reports 14.2 million women-owned U.S. businesses, including 1.4 million women-owned employer firms, or 22.9% of all employer firms.

A repeatable sourcing checklist

  1. Decide which credential you need: WOSB/EDWOSB for federal work, WBE for corporate diverse-spend reporting.
  2. Search by industry and state in a directory or the SBA Small Business Search to build a shortlist.
  3. Verify each shortlisted firm in the source registry (SAM.gov / SBA Small Business Search for federal; WBENC for WBE).
  4. Confirm the certificate is active and note the expiration; treat lapsed certifications as uncertified.
  5. Record a last-verified date and re-check on a cadence, since certifications expire and renew.

Frequently asked

Do I need to verify a women-owned supplier if they already say they're certified?

Yes. Verification means checking the source registry, not the vendor's word. For federal WOSB/EDWOSB status, confirm the certified designation in SAM.gov or the SBA Small Business Search; for WBENC WBE, validate the certificate number and expiration in WBENC's registry. Self-certification has not been valid for WOSB set-asides since October 15, 2020.

Is a WBENC certification the same as an SBA WOSB certification?

No. WBENC's WBE credential is for corporate and private-sector supplier-diversity programs, while WOSB is the SBA federal contracting program. WBENC is an SBA-approved third-party certifier, so a firm can pursue both at once, but holding one does not automatically grant the other, and they renew on different cycles (WOSB every three years, WBE annually).

What is the difference between WOSB and EDWOSB?

Both require a small business at least 51% owned and controlled by women who are U.S. citizens. EDWOSB adds an economic-disadvantage test on the owner: personal net worth under $850,000, three-year average adjusted gross income of $400,000 or less, and total assets of $6.5 million or less. Every EDWOSB is also a WOSB.

How much does WOSB certification cost a supplier?

SBA certification through the MySBA Certifications portal is free. Third-party certifiers may charge for their own proprietary credentials (for example, WBENC's WBE certification carries a revenue-tiered processing fee), but the SBA WOSB/EDWOSB certification itself has no cost.

Where does certified women-owned supplier data come from?

The authoritative federal source is the SBA's Small Business Search, which displays a firm's WOSB or EDWOSB status. The Womyn Owned directory aggregates 5,581 SBA-certified WOSB/EDWOSB B2B vendors across all 50 states plus DC and Puerto Rico, sourced from the SBA Small Business Search and USAspending.gov.

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