| Business | Phone |
| Precis Inc 1400 Mercantile Ln # 201, Upper Marlboro 20774 | (301) 341-6623 |
| Prince George's Conference Ctr 9200 Basil Ct # 101, Upper Marlboro 20774 | (301) 925-8300 |
| Strategic Partnerships Intl 14607 Governor Sprigg Pl, Upper Marlboro 20772 | (301) 952-0770 |