| Business | Phone |
| Paragon Engineering Cockysvl Hnt Vly 21030 | (410) 584-7882 |
| Phoenix Design Group Ltd 224 Schilling Cir # 270, Cockysvl Hnt Vly 21031 | (410) 785-3202 |
| Sidhu Associates Inc 11350 Mccormick Ep 3 Rd # 1000, Cockysvl Hnt Vly 21031 | (410) 329-1115 |
| Brinjac Engineering 11350 Mccormick Rd, Cockysvl Hnt Vly 21031 | (410) 584-8420 |
| Carroll Engineering Inc 11350 Mccormick Rd # Ll1, Cockysvl Hnt Vly 21031 | (410) 785-7423 |
| Diamond Group 9 Schilling Rd, Cockysvl Hnt Vly 21031 | (410) 785-6544 |
| Ea Engineering Science & Tech 11019 Mccormick Rd # 100, Cockysvl Hnt Vly 21031 | (410) 584-7000 |
| Glyndon Engineering & Tech 207 Old Padonia Rd # 100, Cockysvl Hnt Vly 21030 | (410) 252-4404 |
| Ketron Inc 10948 Beaver Dam Rd, Cockysvl Hnt Vly 21030 | (410) 584-9810 |
| Urs Corp 4 N Park Dr # 300, Cockysvl Hnt Vly 21030 | (410) 785-7220 |