| Business | Phone |
| Federal Bureau-Investigation 135 Pinelawn Rd # 350s, Melville 11747 | (631) 501-8600 |
| Federal Bureau-Investigation 35 Pinelawn Rd, Melville 11747 | (631) 501-8600 |
| Us Alcohol Tobacco & Firearms 135 Pinelawn Rd, Melville 11747 | (631) 694-1366 |
| Us Alcohol Tobacco & Firearms 155 Pinelawn Rd, Melville 11747 | (631) 694-8372 |
| Us Drug Enforcement Adm 175 Pinelawn Rd # 205, Melville 11747 | (631) 420-4500 |
| Us Secret Svc 145 Pinelawn Rd # 200n, Melville 11747 | (631) 249-0404 |
| Us Secret Svc 560 Broadhollow Rd, Melville 11747 | (631) 249-0404 |