Business Diversity Executive Advisory Committees
If you are in the energy industry and are interested in supplier diversity initiatives/programs and would like to be added to the Full Committee, send an e-mail to to join.

Executive Advisory Committee 

Byron J.  Witherspoon (Chairman)
Director, Supplier Diversity
Ameren Corporation
PO Box 66149, 
St. Louis, MO  63166
Phone: (314) 554-3092
Fax:  (314) 554-4267

Valerie Coyazo (Co-Chair)
Lead Supplier Diversity Manager
Evergy Inc.
1200 Main Street
Kansas City, MO 64106
Phone: 816-652-1242
Rivers Frederick (Chair Emeritus)
Supplier Diversity Manager
Entergy Services, LLC
639 Loyola Avenue
New Orleans, LA  70113-3125
Phone: 504-576-4924
Mail Stop: L-ENT-5B

Paul Buerkle
Sr. Program Manager - Supplier Diversity
Tennessee Valley Authority
1101 Market St
Chattanooga, TN 37402
Phone: 423-751-8634
Mail Stop: LP 4T
James Garness
Manager, Supplier Diversity
Xcel Energy
414 Nicollet Mall
Minneapolis, MN 55401
Phone: 612-330-6048

Andrew Grier 
Executive Task Force Member
Manager, Supplier Engagement & Diversity
Duke Energy
526 S Church St., Mail Stop: EC11Z
Charlotte, NC 28202-1802
Phone: 704-382-7690
Mary Mayhew
Supplier Diversity Manager
Florida Power & Light Company
700 Universe Blvd
Juno Beach, FL 33408-2683
Phone: 561-691-7498
Mail Stop: MMV/JB
Glenda S. Thomas
Supplier Relations & Diversity Manager
Alabama Power Company
600 N 18th St
Birmingham, AL 35203-0100
Phone: 205-257-1582
Fax: 205-257-4438
Esther R. Williams
Supply Diversity Analyst
DTE Energy
One Energy Plaza
Detroit, MI 48226-1221
Phone: 313-235-8062
Fax: 313-235-7307
Mail Stop: Suite 1940 WCB

Larry Young
Principal Manager
Southern California Edison
2244 Walnut Grove Ave.
Rosemead, CA 91770