| Business | Phone |
| Capital Hotel Partners 6905 Rockledge Dr # 600, Bethesda 20817 | (301) 896-9355 |
| Cardiocore Lab 6901 Rockledge Dr # 220, Bethesda 20817 | (301) 214-7600 |
| Scientific & Laboratories 7315 Wisconsin Ave, Bethesda 20814 | (301) 656-6793 |
| Hj Labs Bethesda Niaid 6700 Rockledge Dr, Bethesda 20817 | (301) 896-0530 |