| Business | Phone |
| N Pooner & Sons Inc 3451 Walker Dr, Ellicott City 21042 | (410) 323-0099 |
| Ro-Vin-Dell Door 4525 Turkey Farm Pl, Ellicott City 21043 | (410) 750-9135 |
| Rpm Enclosures Inc 8847 Manahan Dr, Ellicott City 21043 | (410) 465-0383 |
| Tension Seal Products 3570 Saint Johns Ln, Ellicott City 21042 | (410) 461-6591 |