| Business | Phone |
| Adult Education & Literacy 517 E Main St, Union 29379 | (864) 429-1770 |
| Excelsior Middle School 212 Culp St, Union 29379 | (864) 429-1725 |
| Union Christian Day School 331 Meansville Rd, Union 29379 | (864) 427-4268 |
| Union County School Supt 130 W Main St, Union 29379 | (864) 429-1740 |
| Union School Bus Maintenance 1734 Jonesville Hwy, Union 29379 | (864) 427-9594 |
| Upstate Evaluation Center 1585 Jonesville Hwy, Union 29379 | (864) 429-3610 |
| Foster Park Elementary School 901 Arthur Blvd, Union 29379 | (864) 429-1737 |
| Sims Junior High School 200 Sims Dr, Union 29379 | (864) 429-1755 |
| Monarch Elementary School 218 Monarch School Dr, Union 29379 | (864) 429-1733 |