General information for City of Williamston
Physical address
161 E Grand River Ave, Williamston, Mi, 48895
Mailing address
161 East Grand River Avenue, Williamston, MI, 48895
Website
williamston-mi.us
Points of contact for City of Williamston
SAM.gov Points of Contact
John
Hanifan
Government Business POC
Alternate Electronic Business POC
Manager
161 EAST GRAND RIVER AVENUE, Williamston, MI, 48895
Thomas
Mead
Alternate Government Business POC
Electronic Business POC
Treasurer
161 EAST GRAND RIVER AVENUE, WILLIAMSTON, MI, 48895
Additional contact details may be available
NAICS codes for City of Williamston
| Code | Description | Small Business |
|---|---|---|
|
921190
PRIMARY
|
Other General Government Support
|
No
|
|
926110
PRIMARY
|
Administration of General Economic Programs
|
No
|
| 221310 | Water Supply and Irrigation Systems | No |
| 221320 | Sewage Treatment Facilities | No |
| 237110 | Water and Sewer Line and Related Structures Construction | No |
|
712190
|
Nature Parks and Other Similar Institutions
|
No
|
|
921130
|
Public Finance Activities
|
No
|
|
922120
|
Police Protection
|
No
|
PSC codes for City of Williamston
| Code | Description |
|---|---|
| 4610 | WATER PURIFICATION EQUIPMENT |
| 4620 | WATER DISTILLATION EQUIPMENT, MARINE AND INDUSTRIAL |
| 4630 | SEWAGE TREATMENT EQUIPMENT |
|
Z1LB
|
MAINTENANCE OF HIGHWAYS, ROADS, STREETS, BRIDGES, AND RAILWAYS
|
|
Z1ND
|
MAINTENANCE OF SEWAGE AND WASTE FACILITIES
|
|
Z1NE
|
MAINTENANCE OF WATER SUPPLY FACILITIES
|
|
Z1PD
|
MAINTENANCE OF WASTE TREATMENT AND STORAGE FACILITIES
|
|
Z2HB
|
REPAIR OR ALTERATION OF GOVERNMENT-OWNED GOVERNMENT-OPERATED (GOGO) R&D FACILITIES
|
|
Z2LB
|
REPAIR OR ALTERATION OF HIGHWAYS, ROADS, STREETS, BRIDGES, AND RAILWAYS
|
|
Z2LZ
|
REPAIR OR ALTERATION OF PARKING FACILITIES
|
|
Z2NZ
|
REPAIR OR ALTERATION OF OTHER UTILITIES
|
Update history
1 change(s) tracked
Apr 4, 2026
NAICS 921190 became the primary code
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