NGOs COP28

Coastal Association for Social Transformation Trust (COAST Trust)

Coastal Development Partnership (CDPBD)

COCARAE (COCARAE)

Code REDD

Coeur de Forêt (CDF)

Colby College

Coalition on Agricultural Greenhouse Gases (C-AGG)

ClimateWorks Foundation

Club of Madrid

Co-PLAN

CO2GeoNet – The European Network of Excellence on Geological Storage of CO2 (CO2GeoNet)

Coalition for Green Capital (CGC)

Coalition for Our Common Future (COCF)

Climate Ventures

CliMates

Climate Leadership Council, Inc.

Climate Markets and Investment Association Limited (CMIA)

Climate Strategies

Climate Outreach Information Network (COIN)

Climate Parliament

Climate Policy Initiative, Inc (CPI)

Climate Tracker Incorporated (CT)

Climate Leadership Coalition (CLC)

Climate Justice Alliance (CJA)

Climate Justice Program (ACJP)

Climate Institute (Australia) Limited

Climate Institute (CI)

Climate Generation

Climate Dialogue Japan (Non-profit General Incorporated Association

Climate Equity Reference Project Canada (CERP)

Climate & Sustainability

ClimaInfo Institute

ClientEarth (CE)

Clearpath Leadership Awareness Network (CLAN)

ClearPath

Clean Water Action

Clean Resource Innovation Network (CRIN)

Clean Energy Nepal (CEN)

Clean Energy Group (CEG)

Clean Energy and Safe Environment Initiative (CEASEI)

Clean Air Task Force (CATF)

Clean Air Initiative for Asian Cities Center, Inc. (CAI – Asia Center)

Clean Air Fund (CAF)

Clark University

Civil Societys Climate Forum (Klimaforum09)

Civil Society Coalition for Climate Change (CSCCC)

Civicus World Alliance for Citizen Participation (Civicus)

Civic Exchange

Citizens Climate Education Corp. (CCE)

Citizens Alliance for Saving the Atmosphere and the Earth (CASA)