| Middle Eastern Law Students Association -USD | San Diego | United States | |
| Mission Trails Regional Park Foundation | San Diego | San Diego | Wildlife, Environment/Climate Change/Ecosystems, Sustainability |
| Model United Nations -USD | San Diego | United States | |
| Model United Nations -UCSD | La Jolla | United States | |
| Movimiento Estudiantil Chicano/Chicana De Aztlan -SDSU | San Diego | United States | |
| Movimiento Estudiantil Chicanola de Aztlan (MECHA) -UCSD | La Jolla | United States | |
| Muslim Student Association -SDSU | San Diego | United States | |
| Muslim Student Association -UCSD | La Jolla | United States | |
| Native American Student Alliance (NASA) -SDSU | San Diego | United States | |
| Ocean Discovery Institute | San Diego | San Diego | Ocean |
| Office of International Students and Scholars -USD | San Diego | United States | |
| Open Oceans Global | San Diego | San Diego | Ocean |
| Pacific Islander Student Association -SDSU | San Diego | United States | |
| PCI Global | San Diego | San Diego | |
| Political Science & International Relations Department -USD | San Diego | United States | |
| Political Science Department -UCSD | La Jolla | United States | |
| Preserve Calavera | Oceanside | San Diego | Advocacy/Government/Policy |
| Pro Peninsula | San Diego | San Diego | Advocacy/Government/Policy, Sustainability, Water |
| PROGRAM IN INTERNATIONAL SECURITY AND CONFLICT RESOLUTION -SDSU | San Diego | United States | |
| Project Wildlife | San Diego | San Diego | Advocacy/Government/Policy, Wildlife |
| Russian and Soviet Studies Program -UCSD | La Jolla | United States | |
| San Diego 350 | San Diego | San Diego | Advocacy/Government/Policy |
| San Diego Association of Governments (SANDAG) | San Diego | San Diego | |
| San Diego Audubon Society | San Diego | San Diego | Advocacy/Government/Policy, Sustainability, Wildlife |
| San Diego Beekeeping Society | | | Advocacy/Government/Policy, Wildlife |
| San Diego Building Owners and Managers Association, Energy and Sustainability Committee | San Diego | San Diego | Energy, Sustainability |
| San Diego Chamber of Commerce Water and Energy Committee | San Diego | San Diego | Water, Energy |
| San Diego CoastKeeper | San Diego | San Diego | Advocacy/Government/Policy, Water |
| San Diego Community Gardening Network | | San Diego | Sustainability, Advocacy/Government/Policy |
| San Diego County Air Pollution Control District | San Diego | United States | Energy, Sustainability |
| San Diego County Trees | San Diego | San Diego | Sustainability, Advocacy/Government/Policy |
| San Diego County Water Authority | San Diego | San Diego | Water |
| San Diego EarthWorks | San Diego | San Diego | Advocacy/Government/Policy, Sustainability |
| San Diego Eco Green Lifestyles Group | San Diego | San Diego | Sustainability, Advocacy/Government/Policy |
| San Diego Farm Bureau | Escondido | United States | Environment/Climate Change/Ecosystems, Sustainability, Water |
| San Diego Green Building Council | San Diego | San Diego | Energy |
| San Diego Industrial Environmental Association | Coronado | San Diego | Advocacy/Government/Policy, Sustainability |
| San Diego International Law Journal -USD | San Diego | United States | |
| San Diego Loves Green | San Diego | San Diego | Sustainability |
| San Diego Maritime Alliance | San Diego | United States | Advocacy/Government/Policy, Ocean, Water |
| San Diego Permaculture | San Diego | San Diego | Advocacy/Government/Policy, Sustainability |
| San Diego Regional Sustainability Partnership | | San Diego | Sustainability, Advocacy/Government/Policy |
| San Diego Renewable Energy Society | San Diego | San Diego | Energy |
| San Diego Roots Sustainable Foods Project | San Diego | San Diego | Sustainability, Advocacy/Government/Policy |
| San Diego Sustainable Living Institute | San Diego | San Diego | Advocacy/Government/Policy, Sustainability |
| San Dieguito River Valley Conservancy | San Diego | San Diego | Advocacy/Government/Policy, Water |
| San Elijo Lagoon Conservancy | Encinitas | San Diego | Advocacy/Government/Policy, Water |
| Save Mission Trails | San Diego | United States | Environment/Climate Change/Ecosystems, Sustainability |
| School of International Relations and Pacific Studies -UCSD | La Jolla | United States | |
| Sierra Club, San Diego Chapter | San Diego | San Diego | Advocacy/Government/Policy |
| Sister City-Alcalá de Henares | San Diego | United States | |
| Sister City-Campinas | Cardiff | United States | |
| Sister City-Cavite | San Diego | United States | |
| Sister City-Edinburgh | San Diego | United States | |
| Sister City-Jalalabad | Del Mar | United States | |
| Sister City-Jeonju | Chula Vista | United States | |
| Sister City-Léon | La Jolla | United States | |
| Sister City-Perth | San Diego | United States | |
| Sister City-Taichung | San Diego | United States | |
| Sister City-Tema | San Diego | United States | |
| Sister City-Tijuana | San Diego | United States | |
| Sister City-Vladivostok | San Diego | United States | |
| Sister City-Warsaw & Mazovia Province | San Diego | United States | |
| Sister City-Yantai | Rancho Santa Fe | United States | |
| Sister City-Yokohama | San Diego | United States | |
| Solana Center | Encinitas | San Diego | Advocacy/Government/Policy, Sustainability |
| Somali Student Union -SDSU | San Diego | United States | |
| Southern California Wetlands Recovery Project- San Diego County Task Force | Oakland | San Diego | Advocacy/Government/Policy |
| Student African American Brotherhood -SDSU | San Diego | United States | |
| Student African American Sisterhood -SDSU | San Diego | United States | |
| Student International Business Council -USD | San Diego | United States | |
| Students for Global Justice -SDSU | San Diego | United States | |
| Students for Justice in Palestine at SDSU (SJP) -SDSU | San Diego | United States | |
| Study of Religion Program -UCSD | La Jolla | United States | |
| Surfrider Foundation, San Diego County Chapter | San Diego | San Diego | Advocacy/Government/Policy, Water |
| Sustainability 2.0 UCSD | San Diego | San Diego | Research/Technology, Sustainability |
| Sustainability Alliance of Southern California | | San Diego | Sustainability, Advocacy/Government/Policy |
| Sustainability Matters | San Diego | San Diego | Advocacy/Government/Policy, Sustainability |
| Sustainable Community Meetup San Diego | | San Diego | Sustainability, Advocacy/Government/Policy |
| Sustainable Community Program | San Diego | San Diego | Sustainability, Advocacy/Government/Policy |
| Sustainable Surplus Exchange | Carlsbad | United States | Energy, Sustainability |
| Taiwan Student Association -USD | San Diego | United States | |
| The 1to1 Movement | San Diego | San Diego | Sustainability |
| The Escondido Creek Conservancy | Escondido | San Diego | Environment/Climate Change/Ecosystems, Sustainability, Wildlife |
| The Global ARC | San Diego | San Diego | Advocacy/Government/Policy, Sustainability |
| The International House -UCSD | La Jolla | United States | |
| The Office of Sustainability at the University of San Diego | San Diego | San Diego | Sustainability |
| The San Diego Alternative Energy Meetup Group | San Diego | San Diego | Advocacy/Government/Policy, Energy, Sustainability |
| The San Diego County Community Coalition Meetup Group | San Diego | San Diego | Sustainability, Advocacy/Government/Policy |
| The San Diego River Park Foundation | San Diego | San Diego | Advocacy/Government/Policy, Water, Wildlife |
| The Water Conservation Garden | El Cajon | San Diego | Water |
| Tijuana River National Estuarine Research Reserve | Imperial Beach | San Diego | Advocacy/Government/Policy, Research/Technology, Water |
| Torrey Pines Association | La Jolla | San Diego | Advocacy/Government/Policy |
| Trans-Boder Institute -USD | San Diego | United States | |
| Tritons for Israel -UCSD | La Jolla | United States | |
| UCSD International Center -UCSD | La Jolla | United States | |
| UCSD Sustainable Solutions Institute | San Diego | San Diego | Research/Technology |
| Unified Port of San Diego | San Diego | San Diego | Advocacy/Government/Policy, Water |
| United Green | San Diego | San Diego | Sustainability, Advocacy/Government/Policy |
| Urban Design Committee San Diego | San Diego | San Diego | |
