| Business | Phone |
| Adult Learning Ctr 10 Ontario Rd, St Thomas N5P 3N4 | (519) 633-3242 |
| Arthur Voaden Secondary School 41 Flora St, St Thomas N5P 2X5 | (519) 631-3770 |
| Scott Elementary School 50 Scott St, St Thomas N5P 1K6 | (519) 631-5020 |
| Homedale Elementary School 112 Churchill Cres, St Thomas N5R 1R1 | (519) 631-7820 |
| Locke's Elementary School 22 South Edgeware Rd, St Thomas N5P 2H2 | (519) 631-8890 |
| Monsignor Morrison School 10 South Edgeware Rd, St Thomas N5P 2H2 | (519) 631-1022 |
| Myrtle Elementary School 43 Myrtle St, St Thomas N5R 2E6 | (519) 631-4940 |
| Parkside Secondary School 241 Sunset Dr, St Thomas N5R 3C2 | (519) 633-0090 |
| Balaclava Elementary School 20 Balaclava St, St Thomas N5P 3C2 | (519) 631-4930 |
| Central Elgin Secondary School 201 Chestnut St, St Thomas N5R 2B5 | (519) 631-4460 |
| Southwold Central Elementary 39261 Fingal Line Rr 1, St Thomas N5P 3S5 | (519) 631-5997 |
| Thames Valley District Board 400 Sunset Dr, St Thomas N5R 3C8 | (519) 633-7278 |
| Wellington Elementary School 50 Wellington St, St Thomas N5R 2P8 | (519) 631-4950 |
| D J Driver Training 184 Sunset Dr, St Thomas N5R 3B9 | (519) 637-0194 |
| Ebenezer Christian School 77 Fairview Ave, St Thomas N5R 4X7 | (519) 633-0690 |
| Edward Elementary School 84 Edward St, St Thomas N5P 1Y7 | (519) 631-5010 |
| Elgin Court Elementary School 254 First Ave, St Thomas N5R 4P5 | (519) 631-7118 |
| Elmdale Elementary School 25 Elm St, St Thomas N5R 1H5 | (519) 631-5070 |
| Expressions Dance Art 40 Alma St, St Thomas N5P 3A8 | (519) 631-9087 |
| Faith Christian Academy 109 Chestnut St, St Thomas N5R 2B1 | (519) 633-0943 |
| Forest Park Elementary School 295 Forest Ave, St Thomas N5R 2K5 | (519) 631-3563 |