- Climate FastClimate Pledge Collective
- Congregation Shir Libeynu
- Council of Canadians
- CUPE 3903
- Development and Peace – Caritas Canada – Toronto Archdiocesan Council
- Fightback
- For Our Kids Toronto
- Fridays For Future Toronto
- Good Jobs for All
- Greenpeace
- Idle No More – Toronto
- International Socialists
- Labour Education Centre
- Naturopathic Doctors for Environmental and Social Trust
- Ontario Clean Air Alliance
- Ontario Education Workers United
- OPSEU Greater Toronto Area Council
- OPSEU Region 5
- People’s Climate Movement Toronto/GTA
- Registered Nurses’ Association of Ontario
- Seniors for Climate Action Now
- Steelworkers Toronto Area Council
- Toronto 350
- Toronto and York Region Labour Council
- Toronto Buddhist Council
- Toronto Climate Action Network
- Toronto Environmental Alliance
- TTCriders
- Urban Alliance on Race Relations
- United Steelworkers Local 1998
- University of Toronto Environment Action
- Wilderness Committee
- Women’s Healthy Environments Network
- Youth Climate Save Toronto