- ACORN
- AGC of St. Louis
- AIA
- American Planning Association
- BJC Healthcare
- Citizens for Modern Transit
- City of Creve Coeur
- City of Florissant
- City of Moline Acres
- Focus St. Louis
- Greater St. Louis Alliance for Change to Win
- Greater St. Louis AF L-CIO
- Jobs with Justice
- Lambert International Airport
- Landmarks Association
- Leadership Council of Southwestern Illinois
- Loop Trolley Company
- Metropolitan Congregations United
- Missouri Botanical Gardens
- Missouri Growth Association
- Missouri Progressive Vote Coalition
- Paraquad
- St. Louis Convention and Visitors Commission
- St. Louis County Municipal League
- St. Louis Labor Council
- St. Louis RCGA
- St. Louis Realtors Association
- SEIU Local 1
- SEIU MO/KS State Council
- Sierra Club
- Southern Illinois Builders Association
- SSM Health Care
- The Partnership for Downtown St. Louis
- The Starkloff Disability Institute
- Trailnet
- UNITE HERE Local 74
- University of Missouri St. Louis
- Washington University
