| Employer |
Expiry |
| Algoma Public Health | 2012-03-31 |
| Board of Health Hastings and Prince Edward Counties Health Unit | 2011-12-31 |
| Board of Health Middlesex-London Health Unit | 2010-03-31 |
| Board of Health for Elgin-St. Thomas Health Unit | 2010-03-31 |
| Board of Health of the Haliburton, Kawartha, Pine Ridge District Health Unit, The | 2011-12-31 |
| Board of Health of the Leeds, Grenville & Lanark District Health Unit, The | 2011-03-31 |
| Board of Health of the Thunder Bay District Health Unit, The | 2009-12-31 |
| Board of Management Northwestern Health Unit, The | 2011-09-30 |
| Brant County Health Unit (Allied) | 2011-04-30 |
| Brant County Health Unit (Nursing) | 2011-04-30 |
| Corporation of Norfolk County, The | 2011-06-30 |
| Corporation of the County of Huron Health Unit | 2011-12-31 |
| County of Lambton Community Health Services Department | 2012-03-31 |
| County of Oxford | 2011-12-31 |
| Grey Bruce Health Unit | 2010-12-31 |
| Municipality of Chatham-Kent | 2010-12-31 |
| North Bay Parry Sound District Health Unit | 2012-03-31 |
| Perth District Health Unit | 2010-12-31 |
| Porcupine Health Unit, The | 2013-12-31 |
| Regional Municipality of Durham, The | 2012-03-31 |
| Regional Municipality of Halton, The | 2011-03-31 |
| Regional Municipality of Niagara Public Health | 2011-03-31 |
| Regional Municipality of York, The | 2011-03-31 |
| Renfrew County and District Health Unit | 2012-12-31 |
| Simcoe Muskoka District Health Unit, The | 2011-12-31 |
| Sudbury and District Health Unit | 2012-03-31 |
| The Board of Health for the Peterborough County-City Health Unit | 2009-09-30 |
| The Board of Health of the Eastern Ontario Health Unit | 2010-12-31 |
| The City of Hamilton Public Health Unit | 2010-12-31 |
| Waterloo Public Health Unit | 2011-06-30 |
| Wellington-Dufferin-Guelph Health Unit | 2011-04-30 |
| Windsor-Essex County Health Unit | 2010-03-31 |