| Business | Phone |
| Knights Bridge Pump Station 9 Knights Bridge Dr, Randolph 7869 | (973) 895-4064 |
| Brundage Park Playhouse Carrell Rd, Randolph 7869 | (973) 989-7092 |
| Randolph Animal Control Warden 1345 Sussex Tpke, Randolph 7869 | (973) 989-7090 |
| Randolph Board Of Adjustment 502 Millbrook Ave, Randolph 7869 | (973) 989-7072 |
| Randolph Building Inspector 502 Millbrook Ave, Randolph 7869 | (973) 989-7070 |
| Randolph Municipal Offices 502 Millbrook Ave, Randolph 7869 | (973) 989-7100 |
| Randolph Planning Office 502 Millbrook Ave, Randolph 7869 | (973) 989-7073 |
| Randolph Township Clerk 502 Millbrook Ave, Randolph 7869 | (973) 989-7041 |
| Randolph Township Manager 502 Millbrook Ave, Randolph 7869 | (973) 989-7060 |
| Randolph Twp Engineering 502 Millbrook Ave, Randolph 7869 | (973) 989-7066 |
| Randolph Twp Planning Office 502 Millbrook Ave, Randolph 7869 | (973) 989-7080 |