| Business | Phone |
| Stokes Environmental Assoc Ltd 4101 Granby St 404, Norfolk 23504 | (757) 623-0777 |
| Scs Engineers 6330 N Center Dr 100, Norfolk 23502 | (757) 466-3361 |
| Greeley & Hansen 6325 N Center Dr, Norfolk 23502 | (757) 455-2212 |
| Hdr Engineering Inc 5700 Lake Wright Dr 300, Norfolk 23502 | (757) 222-1500 |