| Business | Phone |
| City Garage 134 Pump Station Rd, Union 29379 | (864) 429-1705 |
| City Warehouse 405 Calhoun St, Union 29379 | (864) 429-1708 |
| Union City Animal Control 1700 Cross Keys Hwy, Union 29379 | (864) 429-1713 |
| Union Personnel Office 101 Sharpe Ave, Union 29379 | (864) 429-1702 |
| Union Taxes & Business License 101 Sharpe Ave, Union 29379 | (864) 429-1703 |
| Water Filter Plant 108 Calhoun St, Union 29379 | (864) 429-1707 |
| Tosch's Creek Wastewater Plant 1700 Cross Keys Hwy, Union 29379 | (864) 429-1723 |