Metropolitan St. Louis Sewer District

Supplier Diversity

If you are seeking information on Certified Minority and Women Business Enterprises (MWBE) contractors, suppliers or consultants, refer to the links below. You will find a list of certified contractors as well as links to agencies from which we accept MWBE certification. These may be helpful in finding names, contact and other information for minority and women businesses able to provide products and services to fulfill your MWBE utilization goal on contract bids submitted to MSD.

MWBE Directory -- Find companies by name or NAICS code. Select by company for contact information, certification origin, NAICS and ethnicity data. Select by NAICS code for a list of certified companies.

City of St. Louis Directory of Certified Businesses

Missouri Office of Equal Opportunity

Missouri Department of Administration Minority/Women Business Enterprise Program

In addition, we also accept MWBE certification from:

St. Louis Minority Business Council (SLMBC) – Since 1973, the St. Louis Minority Business Council (SLMBC) has served as one of the premier strategic business partners in the region.

Effective March 1, 2014, MSD will only accept certifications from the agencies listed above.

If you have questions about MWBE certification guidelines at MSD, contact us at