| Group Name | Address | Phone Number |
| 3 Rivers Wet Weather | 3901 Penn Ave, Bldg 3 Pittsburgh, PA 15224 | (412) 578-8375 |
| Allegheny Conference on Community Development | 11 Stanwix St, 17th Floor Pittsburgh, PA 15222 | (412) 281-1890 |
| Allegheny Land Trust | 416 Thorn St Sewickley, PA 15143 | (412) 741-2750 |
| Beckets Run Woodlands | Rodney Ln Elizabeth, PA 15037 | (724) 208-9317 |
| Center for Watershed Protection | 3290 North Ridge Rd, Suite 290 Ellicott City, MD 21043 | (410) 461-8323 |
| ClearWater Conservancy | 2555 N. Atherton St State College, PA 16803 | (814) 237-0400 |
| Conemaugh Valley Conservancy | PO Box 218 Johnstown, PA 15097 | |
| Evergreen Conservancy | PO Box 783 Indiana, PA 15701 | (724) 471-6020 |
| Friends of the Riverfront | 12 Freeport St Pittsburgh, PA 15223 | (412) 488-0212 |
| Hollow Oak Land Trust | PO Box 741 Coraopolis, PA 15108 | (412) 264-5354 |
| Independence Conservancy | PO Box 248 Industry, PA 15052 | |
| League of Women Voters | 226 Forster St Harrisburg, PA 17012 | (717) 234-1576 |
| North Area Environmental Council | PO Box 71 Ingomar, PA 15127 | (412) 301-5938 |
| Penn State Extension – Water Resources | By County | |
| Pennsylvania Environmental Council | 810 River Ave, Suite 201 Pittsburgh, PA 15212 | (412) 481-9400 |
| Pennsylvania Resources Council | 64 South 14th St Pittsburgh, PA 15203 | (412) 488-7490 |
| Pittsburgh Parks Conservancy | 45 South 23rd St, Suite 101 Pittsburgh, PA 15203 | (412) 682-7275 |
| Pittsburgh United | 841 California Ave Pittsburgh, PA 15212 | (412) 231-8648 |
| Port of Pittsburgh Commission | 4955 Steubenville Pike, Suite 245A Pittsburgh, 15205 | (412) 201-7330 |
| River Quest | | (412) 464-4020 |
| Sustainable Pittsburgh | 307 Fourth Ave, Suite 1500 Pittsburgh, PA 15222 | (412) 258-6642 |
| Tree Pittsburgh | 32 62nd St Pittsburgh, PA 15201 | (412) 781-8733 |
| Western Pennsylvania Coalition for Abandoned Mine Reclamation (WPCAMR) | PO Box 295 Luxor, PA 15662 | |
| Western Pennsylvania Conservancy | 800 Waterfront Dr Pittsburgh, PA 15222 | (412) 288-2777 |
| Westmoreland Land Trust | 218 Donohoe Rd Greensburg, PA 15601 | (724) 325-3031 |
