| Business | Phone |
| Grey County Highway Mntnc Glenelg, Dundalk N0C 1B0 | (519) 923-3012 |
| Proton Township Offices Rr 1, Dundalk N0C 1B0 | (519) 923-2110 |
| Southgate Water Works 80 Main, Dundalk N0C 1B0 | (519) 923-2144 |
| Dundalk Community Ctr 550 Main E, Dundalk N0C 1B0 | (519) 923-3431 |