| Business | Phone |
| Joint Meeting Sewage Dispose Gilbert Place, Millburn 7041 | (973) 379-2040 |
| Millburn Business Adm 375 Millburn Ave, Millburn 7041 | (973) 564-7075 |
| Millburn Engineer 375 Millburn Ave, Millburn 7041 | (973) 564-7050 |
| Millburn First Aid Squad 188 Glen Ave, Millburn 7041 | (973) 564-7005 |
| Millburn Health Officer 375 Millburn Ave, Millburn 7041 | (973) 564-7087 |
| Millburn Senior Citizen Crdntr 375 Millburn Ave, Millburn 7041 | (973) 564-7091 |
| Millburn Township Animal Cntrl 375 Millburn Ave, Millburn 7041 | (973) 564-7085 |
| Millburn Township Clerk 375 Millburn Ave, Millburn 7041 | (973) 564-7073 |
| Millburn Township Pub Wk Dept 345 Essex St, Millburn 7041 | (973) 564-7062 |
| Millburn Twp Customer Svc 375 Millburn Ave, Millburn 7041 | (973) 564-7000 |
| Millburn Twp Shade Trees 375 Millburn Ave, Millburn 7041 | (973) 564-7058 |