Buyer sourcing guide

How to Find Certified Diverse Suppliers

A practical guide for corporate and government buyers on where to source certified minority, women, veteran, LGBTQ+, and disability-owned suppliers, and how to confirm a certification is real before you award work.

By Mario Bailey, Editor-in-Chief · Reviewed against official certifying-body and government sources · Last verified July 2026

Quick answer

There is no single national database of every certified diverse business. Buyers search the directory run by each certifying body, matched to the certification they need: NMSDC for minority-owned (MBE), WBENC for women-owned (WBE), NGLCC for LGBTQ+-owned (LGBTBE), Disability:IN for disability-owned (DOBE), and NaVOBA for veteran-owned (VBE). For government contracting, use SAM.gov for federal set-aside firms and your state's DBE and MBE/WBE directories. Always confirm a supplier's certification is current in the issuing body's own directory before you rely on it.

National third-party certifier directories

Independent councils certify diverse businesses and run the searchable directories most corporate supplier diversity teams use. Each covers a different ownership category.

NMSDC

Minority Business Enterprises (MBE): businesses at least 51% owned by Black, Hispanic, Asian-Pacific, Asian-Indian, or Native American individuals. Its MBE Search covers 23 regional councils.

NMSDC MBE Search ↗

WBENC

Women's Business Enterprises (WBE): businesses at least 51% owned, operated, and controlled by women. Buyers search certified WBEs through WBENCLink.

WBENC ↗

NGLCC

LGBT Business Enterprises (LGBTBE): businesses at least 51% owned by LGBTQ+ individuals. NGLCC maintains the corporate LGBTBE supplier registry.

NGLCC ↗

Disability:IN

Disability-Owned Business Enterprises (DOBE), including service-disabled veteran and disability-owned firms, certified for corporate supplier diversity programs.

Disability:IN ↗

NaVOBA

Certified Veteran's Business Enterprises (VBE) and Service-Disabled Veteran's Business Enterprises (SDVBE) for corporate buyers.

NaVOBA ↗

Not sure which applies?

Our directory lists every certifying body, what it certifies, and the certifications each corporate program accepts.

Certifying bodies directory →

Government and federal directories

Public-sector buyers and prime contractors with subcontracting goals source through government registries rather than the corporate councils.

  • Federal set-asides: SAM.gov is the system of record for federal contractors. You can filter by socioeconomic status, including 8(a), Women-Owned Small Business (WOSB), Service-Disabled Veteran-Owned (SDVOSB), and HUBZone.
  • State DBE directories: every state runs a Disadvantaged Business Enterprise directory through its Unified Certification Program for federally funded transportation work. Start from our state programs directory to reach each one.
  • State and local MBE/WBE: many states and cities keep their own certified minority- and women-owned business directories (for example, Virginia's SWaM and DBE directory). Our state pages link to each program's official portal.

On SupplierDiversity.com

We keep the map of who certifies what and who accepts it, so you can go from a certification to the right directory quickly.

How to verify a supplier's certification

A certificate PDF is not proof on its own. Before you count a supplier toward a diverse spend goal or a subcontracting plan, confirm the certification directly:

  1. Ask which body issued the certification and the certification number or business name on file.
  2. Search that body's own directory (linked above) and confirm the record is active, not expired.
  3. Check the ownership category matches what you need. MBE, WBE, DBE, and 8(a) are not interchangeable, and each buyer program counts them differently.

Our certification guides explain what each certification requires and who issues it, so you know what a legitimate certificate should show.

Sourcing guides by state

Some buyers need certified diverse firms in a specific state. These guides cover each state's official directory, its regional minority supplier council, and how to verify a certification there.

Sourcing outside the US

Global supplier diversity programs count spend with suppliers certified by each country's own body: CAMSC in Canada, MSDUK in the UK, Supply Nation in Australia, and their counterparts. Our Supplier Diversity Around the World guide maps every market's certifiers and directories.

Frequently asked questions

Is there one directory of all certified diverse suppliers?

No. Certification is issued by different bodies for different ownership types, and each keeps its own directory. Buyers search the directory that matches the certification they need, or use an aggregator. Our certifying-bodies directory maps them in one place.

What is the difference between MBE and DBE?

MBE (Minority Business Enterprise) is a corporate certification issued by NMSDC affiliates for supplier diversity programs. DBE (Disadvantaged Business Enterprise) is a government certification for federally funded transportation contracts, issued by state Unified Certification Programs. A firm can hold both.

How do I find certified diverse subcontractors in a specific state?

Use the state's DBE directory and its state MBE/WBE directory for local firms, plus the regional NMSDC council for that area. Our state programs directory links to each state's official portal.

Are you a diverse business, not a buyer?

Get certified so buyers can find you in these directories. Our guide walks through every certification, what it costs, and how to apply.

How to get certified →