| Business | Phone |
| Claymont Community Ctr 3301 Green St, Claymont 19703 | (302) 792-2757 |
| Goodwill Industries 2701 Philadelphia Pike, Claymont 19703 | (302) 798-9047 |
| Lions Club Of Claymont 3301 Green St, Claymont 19703 | (302) 798-6848 |
| National Assn-Social Workers 3301 Green St, Claymont 19703 | (302) 792-0646 |
| New Knollwood Civic Assoc 4 Colby Ave, Claymont 19703 | (302) 793-0846 |