| Business | Phone |
| Albert Mc Cormick Community 500 Parkside Dr, Waterloo N2L 5J4 | (519) 885-1700 |
| Waterloo Home Child Care 99 Regina St N, Waterloo N2J 3A8 | (519) 883-2220 |
| Waterloo Social Svc Department 99 Regina St N #500, Waterloo N2J 3A8 | (519) 883-2195 |
| Regional Municipality 925 Erb St W, Waterloo N2J 3Z4 | (519) 883-5100 |
| Regional Roads Maintenance 100 Maple Grove Rd, Waterloo | (519) 575-4504 |
| Sexual Health Program 99 Regina St N, Waterloo N2J 3A8 | (519) 883-2267 |
| Water Chairman Regional 150 Frederick 1st Flr, Waterloo | (519) 575-4585 |
| Waterloo Community Health Dpt 99 Regina St S #300, Waterloo | (519) 883-2000 |
| Waterloo Environmental Health 99 Regina St N #300, Waterloo N2J 3A8 | (519) 883-2008 |
| Waterloo Infant Dev Program 99 Regina St N #500, Waterloo N2J 3A8 | (519) 883-2268 |
| Waterloo North Hydro 300 Northfield Dr, Waterloo N2J 4G8 | (519) 886-5090 |
| Waterloo Manulife Financial 185 Bridge St W, Waterloo N2K 1K8 | (519) 576-2420 |
| Waterloo City Clerk's Div 100 Regina St S, Waterloo N2J 4P9 | (519) 886-1550 |
| Waterloor Aids /Hiv 99 Regina St N #200, Waterloo N2J 3A8 | (519) 883-2251 |
| Waterloo Mayor's Office 100 Regina St S, Waterloo N2J 4P9 | (519) 747-8700 |
| Waterloo Recreation Complex 101 Father David Bauer Dr, Waterloo N2J 4A8 | (519) 886-1177 |
| Waterloo Child Care Subsidy 99 Regina St N #500, Waterloo N2J 3A8 | (519) 883-2200 |
| Waterloo Communicable Disease 99 Regina St N #200, Waterloo N2J 3A8 | (519) 883-2006 |
| Waterloo Chief Administrator 100 Regina St S, Waterloo N2J 4P9 | (519) 747-8702 |
| Waterloo Dental Svc 99 Regina St N #400, Waterloo N2J 3A8 | (519) 883-2222 |
| Waterloo Community Arts Ctr 25 Regina St S, Waterloo N2J 1R8 | (519) 886-4577 |
| Waterloo Treasury Svc 100 Regina St S, Waterloo N2J 4P9 | (519) 747-8718 |
| Waterloo Employment Options 99 Regina St N #500, Waterloo N2J 3A8 | (519) 883-2105 |
| Waterloo Financial Svc Div 100 Regina St S, Waterloo N2J 4P9 | (519) 747-8721 |
| Waterloo Senior Citizens Ctr 185 King St S, Waterloo N2J 1P7 | (519) 579-1020 |
| Waterloo City Council 100 Regina St S, Waterloo N2J 4P9 | (519) 747-8784 |
| Waterloo Economic Activities 100 Regina St S #200, Waterloo N2J 4P9 | (519) 747-8707 |
| Waterloo Union Gas 603 Kumpf Dr, Waterloo N2V 1K3 | (519) 885-7400 |
| Waterloo Licenses 100 Regina St S, Waterloo N2J 4P9 | (519) 747-8776 |
| Waterloo Immunization Control 99 Regina St S #200, Waterloo | (519) 883-2007 |
| Waterloo Rotary Adult Ctr 510 Dutton Dr, Waterloo N2L 4C6 | (519) 888-6356 |
| Waterloo Waste Water Treatment 190 University E, Waterloo | (519) 884-0260 |
| Waterloo Social Svc 99 Regina St N, Waterloo N2J 3A8 | (519) 883-2118 |
| Canadian Clay & Glass Gallery 25 Caroline St N, Waterloo N2L 2Y5 | (519) 746-1882 |
| Carolyn Fedy Skating Ctr 99 Seagram Dr, Waterloo N2L 3B6 | (519) 884-6430 |
| Economic Development 100 Regina St S #200, Waterloo N2J 4P9 | (519) 747-8708 |