| Business | Phone |
| Accomendations 9192 Red Branch Rd, Columbia 21045 | (410) 884-9377 |
| Baltimore Area Convention 5222 Patriot Ln, Columbia 21045 | (410) 992-7030 |
| Communications 7178 Columbia Gateway Dr, Columbia 21046 | (410) 309-3420 |
| Events Organization 10480 Little Patuxent Pky #400, Columbia 21044 | (301) 596-2003 |