| Business | Phone |
| Amertrade 135 National Business Pkwy, Annapolis Jct 20701 | (240) 568-3500 |
| Banner Corp 12011 Guilford Rd, Annapolis Jct 20701 | (301) 880-0027 |
| Boeing 131 National Business Pkwy, Annapolis Jct 20701 | (301) 497-4234 |
| Harris Corp 132 National Business Pkwy, Annapolis Jct 20701 | (301) 837-5200 |
| Keller Truck Parts Inc 10830 Guilford Rd, Annapolis Jct 20701 | (410) 792-0703 |
| National Business Park 131 National Business Pkwy, Annapolis Jct 20701 | (301) 725-2560 |
| National Business Park 141 Orion Blvd, Annapolis Jct 20701 | (301) 725-2504 |
| Neighborcare Inc 9070 Junction Dr, Annapolis Jct 20701 | (301) 362-0587 |
| Pace Inc 9030 Junction Dr, Annapolis Jct 20701 | (240) 568-3088 |
| Panacya 134 National Business Pkwy, Annapolis Jct 20701 | (240) 568-8600 |