| Business | Phone |
| City Planning 59 Court St # 12, Westfield 1085 | (413) 572-6246 |
| Voter Registration 59 Court St # 210, Westfield 1085 | (413) 572-6266 |
| Westfield City Building Dept 59 Court St, Westfield 1085 | (413) 572-6250 |
| Westfield City Collector 59 Court St, Westfield 1085 | (413) 572-6229 |
| Westfield City Engineering 59 Court St # 306, Westfield 1085 | (413) 572-6219 |
| Westfield City Law Dept 59 Court St, Westfield 1085 | (413) 572-6260 |
| Westfield City Parking Clerk 59 Court St # 211, Westfield 1085 | (413) 572-6202 |
| Westfield City Personnel 59 Court St, Westfield 1085 | (413) 572-6207 |
| Westfield City Refuse Cllctn 59 Court St, Westfield 1085 | (413) 572-6210 |
| Westfield City Retirement 59 Court St, Westfield 1085 | (413) 572-6239 |
| Westfield City Veterans 59 Court St, Westfield 1085 | (413) 572-6242 |
| Westfield City Weights & Msrs 59 Court St, Westfield 1085 | (413) 572-6241 |
| Westfield Garage 12 Ponders Hollow Rd, Westfield 1085 | (413) 572-6267 |
| Westfield Sewage Treatment 149 Neck Rd, Westfield 1085 | (413) 572-6268 |
| Westfield Sewage Treatment Ofc 59 Court St # 102, Westfield 1085 | (413) 572-6227 |
| Westfield Waste Water Trtmnt 59 Court St, Westfield 1085 | (413) 572-6318 |