| Organization | Address | State / Province | |
|---|---|---|---|
| Maryland Native Plant Society | MD Map It | MD | |
| Maryland PIRG | MD Map It | MD | |
| Maryland United for Peace and Justice | MD Map It | MD | |
| Massachusetts Audubon Society | MA Map It | MA | |
| Massachusetts Society for the Prevention of Cruelty to Animals | MA Map It | MA | |
| Michigan Environmental Council | MI Map It | MI | |
| Michigan Humane Society | MI Map It | MI | |
| Michoacan Reforestation Fund | KS Map It | KS | |
| Minnesota Native Plant Society | MN Map It | MN | |
| Minnesota River Valley Audubon Chapter | MN Map It | MN | |
| Missouri Botanical Garden | MO Map It | MO | |
| Montana Audubon | MT Map It | MT | |
| Montana Wilderness Association | MT Map It | MT | |
| Morris Arboretum of the University of Pennsylvania | PA Map It | PA | |
| Mount Graham Coalition | TX Map It | TX | |
| Movement for a People's Party | CA Map It | CA | |
| Naropa University | CO Map It | CO | |
| National Association of Biology Teachers (NABT) | VA Map It | VA | |
| National Association of People with AIDS | MD Map It | MD | |
| National Audubon Society | DC Map It | DC | |
| National Humane Education Society | WV Map It | WV | |
| National Recreation & Parks Assoc | VA Map It | VA | |
| National Wildlife Refuge Association | DC Map It | DC | |
| National Wolfwatcher Coalition | MN Map It | MN | |
| Native Plant Conservation Campaign | CA Map It | CA | |
| Organization | Address | State / Province |
