| Business | Phone |
| Us Alcohol Tobacco & Firearms Austin 78759 | (512) 349-4545 |
| Us Drug Enforcement Adm 9009 Mountain Ridge Dr A300, Austin 78759 | (512) 344-4900 |
| Us Marshals Svc 200 W 8th St 316, Austin 78701 | (512) 916-5393 |
| Us Secret Svc 300 E 8th St 972, Austin 78701 | (512) 916-5103 |
| Federal Bureau Investigation 9420 Research Blvd Iii400, Austin 78759 | (512) 345-1111 |