| Business | Phone |
| Northern Va Community Clg Libr 3001 N Beauregard St 232, Alexandria 22311 | (703) 845-6232 |
| Humphreys Engnr Ctr Tech Libr 7701 Telegraph Rd 110, Alexandria 22315 | (703) 428-6386 |
| Headley Technical Research Ctr 4501 Ford Ave 820, Alexandria 22302 | (703) 681-9234 |