| 1369 Coffeehouse |
| Alpha Delta Phi |
| American Chemical Society - Northeastern |
| Bates Alumni |
| Bellingham Boy Scout Troop 14 |
| Bellingham Daisy Troop |
| Boston Cares/City Year |
| Boston University |
| Box Pond Association |
| Boy Scout Troop 108 |
| Boy Scout Troop 250 |
| Bryn Mawr Alumnae Club of Boston |
| BU Alpha Epsilon Delta |
| BU Community Service Center |
| BU Environmental Student Organization |
| BU Health Pre-professional Society |
| BU Sigma Kappa |
| Cambridge Boat Club |
| CDM |
| Charles River School - Dover |
| Community Rowing |
| Coolidge Ave. Neighbors |
| Cronin's Landing Apartment residents |
| Cub Scout Pack 100 |
| Cub Scout Pack 18 |
| Cub Scout Pack 186 |
| Cub Scout Pack 250 |
| Dana Hall Middle School |
| Dancing Deer |
| DMJM Harris |
| Dover Home Schoolers |
| Dunkin' Donuts |
| Earth Emerson |
| Einhorn Yaffee Prescott Architects & Engineers |
| Emerald Necklace Martial Arts |
| Emerson College |
| Emerson Sigma Alpha Epsilon |
| Engineers Without Borders |
| Events & Adventures |
| Finnegan, Henderson, Farabow, Garrett & Dunner, LLP |
| First Lutheran Church of Boston |
| Fisher College |
| Friends of Hemlock Gorge |
| Genzyme Corporation |
| Graduate Environmental Engineering Students Society |
| Harvard Business School |
| Harvard Environmental Club |
| Holcim |
| Human Services Research Institute |
| Hyatt Hotel |
| iProspect |
| Island Neighborhood Association |
| Korean Hope Church |
| KPMG |
| LEAF - Northeastern School of Law |
| Lesley University |
| Masonic Lodge - Norumbega Fraternity |
| Mckinsey and Company |
| Medfield Boy Scout Troop |
| Metcalf & Eddy/AECOM |
| MIT |
| MIT Chinese Students Club |
| MIT Env. & Civil Engineering |
| Mount Auburn Cemetery |
| Mt Ida |
| Natick Environmental Coaliton |
| Neighborhood group |
| New Balance, Cambridge Running Club |
| Newton Congregational Church |
| Newton Country Day School |
| Newton North High School |
| Newton/Waban Neighborhood Group |
| NoNasties Stream Team |
| Northeastern University Alpha Delta Phi |
| Old South Church |
| Omega Phi Beta & Iota Phi Theta |
| Raytheon Corporation |
| Rebecca Mastoras and Friends |
| REI |
| Riverside Boat Club |
| SCI/AmeriCorps Youth Program |
| Sen. Tolman's Office |
| Shawmut Springs Church |
| Single Volunteers Boston |
| Skidmore Alumni |
| Solomon Fund |
| Student Young Adult Fellowship of First Lutheran Church of Boston |
| Suffolk University students |
| The North Face |
| The North Face - Natick Collection |
| Trinity Church |
| Triumvirate Environmental |
| UMASS Med |
| Union Boat Club |
| US Government Account Organization |
| Watertown Citizens for Env.Safety |
| Watertown Police |
| Wellesley College |
| Wellesley Community Group (Wellesley NRC) |
| WERS |
| Wheelock College Environmental Forum class |
| Whole Foods |
| Young Alumni Volunteer Association |