| Business | Phone |
| Aeras Global Tb Vaccine Fndtn 7500 Old Georgetown Rd # 800, Bethesda 20814 | (301) 762-3100 |
| Utopia Research Bethesda 20817 | (301) 564-8295 |
| Bio Physical Society 9650 Rockville Pike, Bethesda 20814 | (301) 530-7114 |
| Sentech 7475 Wisconsin Ave # 9, Bethesda 20814 | (301) 654-7224 |
| Pem Technologies Inc 5611 Roosevelt St, Bethesda 20817 | (301) 564-0835 |
| Omega-3 Research Institute 7500 Old Georgetown Rd, Bethesda 20814 | (301) 961-1918 |
| National Institute-Diabetes 9000 Rockville Pike # 31, Bethesda 20892 | (301) 496-3583 |
| Media Research Bethesda 20817 | (301) 564-8018 |
| International Biotech & Systs 9717 Brixton Ln, Bethesda 20817 | (301) 493-4150 |