| Business | Phone |
| Motor Vehicle Bureau 20 Ontario St, Canandaigua 14424 | (585) 396-4210 |
| Ontario Cnty Youth Care Fclty 3909 County Road 46, Canandaigua 14424 | (585) 394-0180 |
| Ontario County Adm 20 Ontario St, Canandaigua 14424 | (585) 396-4401 |
| Ontario County Adult Svc 3010 County Complex Dr, Canandaigua 14424 | (585) 396-4114 |
| Ontario County Animal Care 2976 County Road 48, Canandaigua 14424 | (585) 396-4590 |
| Ontario County Child Prtctv 3010 County Complex Dr, Canandaigua 14424 | (585) 396-4111 |
| Ontario County Computer Svc 70 Ontario St, Canandaigua 14424 | (585) 396-4500 |
| Ontario County Dept Of Human 3019 County Complex Dr, Canandaigua 14424 | (585) 396-4404 |
| Ontario County Election Board 20 Ontario St, Canandaigua 14424 | (585) 396-4005 |
| Ontario County Emergency Manag 2914 County Road 48, Canandaigua 14424 | (585) 396-4310 |
| Ontario County Employment Dept 3010 County Complex Dr, Canandaigua 14424 | (585) 396-4020 |
| Ontario County Highway Office 2962 County Road 48, Canandaigua 14424 | (585) 396-4000 |
| Ontario County Historian 3019 County Complex Dr, Canandaigua 14424 | (585) 396-4034 |
| Ontario County Housing 3010 County Complex Dr, Canandaigua 14424 | (585) 396-4036 |
| Ontario County Human Resources 3019 County Complex Dr, Canandaigua 14424 | (585) 396-4465 |
| Ontario County Planning Dept 20 Ontario St, Canandaigua 14424 | (585) 396-4455 |
| Ontario County Printing Svc 3010 County Complex Dr, Canandaigua 14424 | (585) 396-4050 |
| Ontario County Purchasing Dept 20 Ontario St, Canandaigua 14424 | (585) 396-4442 |
| Ontario County Sewer District 2962 County Road 48, Canandaigua 14424 | (585) 396-4300 |
| Ontario County Soil & Water 2531 Rochester Rd, Canandaigua 14424 | (585) 394-1341 |
| Ontario County Soil & Water 480 N Main St, Canandaigua 14424 | (585) 396-1450 |
| Ontario County Stop Dwi 20 Ontario St, Canandaigua 14424 | (585) 396-4308 |
| Ontario County Stop Dwi 2914 County Road 48, Canandaigua 14424 | (585) 396-4308 |
| Ontario County Substance Abuse 3019 County Complex Dr, Canandaigua 14424 | (585) 396-4190 |
| Ontario County Surrogate's Ct 27 N Main St, Canandaigua 14424 | (585) 396-4055 |
| Ontario County Treasurer's Office 20 Ontario St # 2, Canandaigua 14424 | (585) 396-4422 |
| Ontario County Veterans Svc 3010 County Complex Dr, Canandaigua 14424 | (585) 396-4185 |
| Ontario County Wghts/Measures 2962 County Road 48, Canandaigua 14424 | (585) 396-4374 |
| Ontario County Youth Bureau 3010 County Complex Dr, Canandaigua 14424 | (585) 396-4035 |
| Ontario Record Center & Archives 3051 County Complex Dr, Canandaigua 14424 | (585) 396-4376 |