| Business | Phone |
| Blairstown Building Dept 5 Stillwater Rd, Hardwick 7825 | (908) 362-6897 |
| Blairstown Twp Ambulance Corp 5 Stillwater Rd, Hardwick 7825 | (908) 362-6666 |
| Blairstown Twp Clerk 5 Stillwater Rd, Hardwick 7825 | (908) 362-6663 |
| Hardwick Municipal Building 40 Spring Valley Rd, Hardwick 7825 | (908) 362-6528 |