| Business | Phone |
| Wildlife Habitat Council 8737 Colesville Rd # 800, Silver Spring 20910 | (301) 588-8994 |
| Wildlife Habitat Enhancement 1010 Wayne Ave, Silver Spring 20910 | (301) 588-8994 |
| Trees For The Future 9000 16th St, Silver Spring 20910 | (301) 565-0630 |
| Axxon Biopharm Inc 11303 Amherst Ave # 2, Silver Spring 20902 | (301) 949-8197 |