| Business | Phone |
| Advanced Vehicle Systems Inc 1114 Benfield Blvd, Millersville 21108 | (410) 729-4433 |
| Engineering Solutions Inc 94 Tender Way, Millersville 21108 | (410) 544-9599 |
| Williams Associates' Engr Pa 408 Headquarters Dr, Millersville 21108 | (410) 729-1004 |