| Business | Phone |
| Commercial Building Syst Inc 600 Patriot Ln, Millersville 21108 | (410) 590-4478 |
| Maggio Construction Co 413 Headquarters Dr # 6, Millersville 21108 | (410) 849-2800 |
| Polm Companies 303 Najoles Rd # 101, Millersville 21108 | (410) 987-3100 |
| Weston Builders & Developers 407 Headquarters Dr, Millersville 21108 | (410) 729-9655 |