| Business | Phone |
| Macom Government Products Inc 10713 Gilroy Rd, Cockysvl Hnt Vly 21031 | (410) 771-0077 |
| Sci Systems Inc 10947 Golden West Dr, Cockysvl Hnt Vly 21031 | (410) 785-3000 |
| General Services Engineering 11101 Gilroy Rd, Cockysvl Hnt Vly 21031 | (410) 785-1018 |