| Business | Phone |
| Atlantic Displays Inc 1014 S Main St, Mt Airy 21771 | (301) 829-5488 |
| Dms Sign Connection 102 Lookout Ave, Mt Airy 21771 | (301) 831-7530 |
| House Of Linganore 8839 Clemsonville Rd, Mt Airy 21771 | (301) 829-0233 |
| Rainbow Neon Inc Mt Airy 21771 | (301) 829-7970 |