| Canada. Governor General of Canada, Ottawa, Governor General of Canada | Ottawa |
| Canada. Members of Parliament - Halton Region, Burlington North - Milton West Electoral District - Milton Office, Federal Services to Constituencies | Milton |
| Canada. Members of Parliament - Halton Region, Burlington Electoral District - Burlington Office, Federal Services to Constituencies | Burlington |
| Canada. Members of Parliament - Halton Region, Oakville West Electoral District - Oakville Office, Federal Services to Constituencies | Oakville |
| Canada. Members of Parliament - Halton Region, Oakville East Electoral District - Oakville Office, Federal Services to Constituencies | Oakville |
| Canada. Members of Parliament - Wellington County, Wellington-Halton Hills North Electoral District - Fergus Office, Federal Services to Constituencies - Wellington County | Centre Wellington |
| Canada. Office of the Prime Minister | Ottawa |
