| Children's Aid Soc., Hamilton-Went. | Other Public Sector Employers | 1998 | 1 | $120,448 |
| Children's Aid Soc., London & Mddlsx | Other Public Sector Employers | 1998 | 1 | $110,732 |
| Children's Aid Society Brockville/Leeds & Grenville | Other Public Sector Employers | 2010 | 3 | $112,202 |
| Children's Aid Society of Algoma | Other Public Sector Employers | 2025 | 21 | $121,294 |
| Children's Aid Society of Bruce | Other Public Sector Employers | 2011 | 3 | $111,517 |
| Children's Aid Society of Durham | Other Public Sector Employers | 2014 | 43 | $109,241 |
| Children's Aid Society of Hastings | Other Public Sector Employers | 2011 | 5 | $122,315 |
| Children's Aid Society of Huron-Perth | Other Public Sector Employers | 2014 | 5 | $130,741 |
| Children's Aid Society of Kingston | Other Public Sector Employers | 2011 | 5 | $123,732 |
| Children's Aid Society of Lanark | Other Public Sector Employers | 2008 | 2 | $116,869 |
| Children's Aid Society of Lanark & Smiths Falls | Other Public Sector Employers | 2010 | 2 | $118,125 |
| Children's Aid Society of London and Middlesex | Other Public Sector Employers | 2025 | 47 | $130,079 |
| Children's Aid Society of Metropolitan Toronto | Other Public Sector Employers | 1997 | 3 | $109,980 |
| Children's Aid Society of Nipissing & Parry Sound | Other Public Sector Employers | 2012 | 6 | $118,587 |
| Children's Aid Society of Northumberland | Other Public Sector Employers | 2011 | 7 | $112,328 |
| Children's Aid Society of Ottawa | Other Public Sector Employers | 2025 | 89 | $124,661 |
| Children's Aid Society of Ottawa-Carleton | Other Public Sector Employers | 1997 | 1 | $107,484 |
| Children's Aid Society of Owen Sound | Other Public Sector Employers | 2007 | 3 | $116,124 |
| Children's Aid Society of Owen Sound & Grey County | Other Public Sector Employers | 2011 | 4 | $116,976 |
| Children's Aid Society of Oxford County | Other Public Sector Employers | 2025 | 15 | $125,887 |
| Children's Aid Society of Simcoe County | Other Public Sector Employers | 2014 | 13 | $119,111 |
| Children's Aid Society of Sudbury & Manitoulin | Other Public Sector Employers | 2010 | 6 | $108,695 |
| Children's Aid Society of the City of Guelph and the County of Wellington | Other Public Sector Employers | 2025 | 22 | $125,169 |
| Children's Aid Society of the County of Bruce | Other Public Sector Employers | 2007 | 1 | $103,361 |
| Children's Aid Society of the County of Dufferin | Other Public Sector Employers | 2016 | 7 | $112,689 |
| Children's Aid Society of the District of Nipissing and Parry Sound | Other Public Sector Employers | 2025 | 22 | $127,272 |
| Children's Aid Society of the District of Sudbury-Manitoulin | Other Public Sector Employers | 2025 | 35 | $118,207 |
| Children's Aid Society of the District of Thunder Bay | Other Public Sector Employers | 2025 | 17 | $119,532 |
| Children's Aid Society of the Districts of Sudbury and Manitoulin | Other Public Sector Employers | 2016 | 8 | $116,800 |
| Children's Aid Society of the Niagara Region | Other Public Sector Employers | 2025 | 49 | $127,814 |
| Children's Aid Society of the Region of Peel | Other Public Sector Employers | 2025 | 98 | $126,157 |
| Children's Aid Society of the Regional Municipality of Halton | Other Public Sector Employers | 2025 | 27 | $120,817 |
| Children's Aid Society of the Regional Municipality of Waterloo | Other Public Sector Employers | 2025 | 41 | $117,378 |
| Children's Aid Society of the United Counties of Stormont Dundas and Glengarry | Other Public Sector Employers | 2025 | 19 | $137,095 |
| Children's Aid Society of Toronto | Other Public Sector Employers | 2025 | 337 | $118,837 |
| Children's Centre Thunder Bay | Other Public Sector Employers | 2025 | 20 | $128,659 |
| Children's Community Network | Other Public Sector Employers | 2025 | 1 | $120,698 |
| Children's Community Network/Reseau Communautaire Pour Enfants | Other Public Sector Employers | 2017 | 1 | $106,000 |
| Children's Hospital of Eastern Ontario | Hospitals & Boards of Public Health | 2015 | 114 | $137,366 |
| Children's Hospital of Eastern Ontario – Ottawa Children's Treatment Centre | Hospitals & Boards of Public Health | 2025 | 1,064 | $122,846 |
| Children's Mental Health of Leeds and Grenville | Other Public Sector Employers | 2025 | 5 | $125,643 |
| Children's Mental Health Ontario | Other Public Sector Employers | 2025 | 5 | $142,404 |
| Children's Mental Health Services | Other Public Sector Employers | 2016 | 2 | $110,851 |
| Children's Mental Health Services (Serving Children and Families in Hastings and Prince Edward Counties) | Other Public Sector Employers | 2025 | 7 | $115,617 |
| Children's Mental Health-Oolagen Community Services | Other Public Sector Employers | 2006 | 1 | $104,759 |
| Children's Rehab. Centre - Essex County | Other Public Sector Employers | 2004 | 1 | $112,667 |
| Children's Rehabilitation Ctr. of Essex | Hospitals & Boards of Public Health | 2005 | 1 | $107,991 |
| Children's Treatment Centre of Chatham Kent | Other Public Sector Employers | 2025 | 1 | $149,698 |
| Children's Treatment Centre of Chatham–Kent | Other Public Sector Employers | 2012 | 1 | $107,300 |
| Children's Treatment Network of Simcoe York | Other Public Sector Employers | 2025 | 28 | $126,888 |
| Children, Community and Social Services | Government of Ontario – Ministries | 2025 | 1,821 | $127,978 |
| Childrens Aid Society-Ottawa | Other Public Sector Employers | 2001 | 1 | $125,200 |
| Children’s Aid Foundation of Canada | Other Public Sector Employers | 2020 | 6 | $163,614 |
| Children’s Aid Society of Brant | Other Public Sector Employers | 2021 | 19 | $113,648 |
| Children’s Aid Society of Haldimand-Norfolk | Other Public Sector Employers | 2021 | 20 | $113,972 |
| Chimo Youth and Family Services Inc | Other Public Sector Employers | 2025 | 1 | $123,255 |
| Chippewas of Kettle and Stony Point First Nation | Other Public Sector Employers | 2025 | 7 | $122,213 |
| Chippewas of Rama First Nation | Other Public Sector Employers | 2025 | 11 | $124,012 |
| Chippewas of the Thames First Nation | Other Public Sector Employers | 2025 | 5 | $112,779 |
| Choices | Other Public Sector Employers | 2025 | 3 | $113,431 |
| CHOICES Association Inc. | Other Public Sector Employers | 2016 | 1 | $113,265 |
| Choices for Change Alcohol Drug and Gambling Counselling Centre | Other Public Sector Employers | 2021 | 1 | $117,430 |
| Christian Horizons, Canada | Other Public Sector Employers | 2007 | 7 | $115,086 |
| Christian Labour Association of Canada (Clac) Education & Assistance Training Department | Other Public Sector Employers | 2024 | 1 | $155,891 |
| Circle of Care Services, Toronto | Other Public Sector Employers | 2008 | 5 | $133,886 |
| Circle of Home Care Services (Toronto) | Other Public Sector Employers | 2025 | 24 | $150,000 |
| Circle of Home Care Services - T.O. | Other Public Sector Employers | 1999 | 1 | $119,240 |
| Circle of Home Care Srvcs (Toronto) | Other Public Sector Employers | 2001 | 1 | $136,055 |
| Citizen Advocacy of Ottawa-Carleton | Other Public Sector Employers | 2016 | 1 | $111,034 |
| Citizens for the Advancement of Community Development | Other Public Sector Employers | 2022 | 1 | $100,000 |
| Citizenship and Immigration | Government of Ontario – Ministries | 2018 | 77 | $124,250 |
| Citizenship and Multiculturalism | Government of Ontario – Ministries | 2025 | 118 | $144,118 |
| Citizenship, Culture & Recreation | Government of Ontario – Ministries | 2000 | 13 | $113,233 |
| Citizenship, Immigration & International Trade | Government of Ontario – Ministries | 2015 | 85 | $124,131 |
| CITO | Other Public Sector Employers | 2002 | 3 | $131,204 |
| City Clarence-Rockland | Municipalities & Services | 2006 | 1 | $109,725 |
| City of Barrie | Municipalities & Services | 2025 | 817 | $133,419 |
| City of Barrie - Public Library | Municipalities & Services | 2007 | 1 | $104,206 |
| City of Belleville | Municipalities & Services | 2025 | 229 | $139,826 |
| City of Brampton | Municipalities & Services | 2025 | 2,117 | $127,239 |
| City of Brampton - Brampton Downtown Development Corporation | Municipalities & Services | 2014 | 1 | $162,419 |
| City of Brampton - Library | Municipalities & Services | 2005 | 2 | $114,823 |
| City of Brampton - Public Library Board | Municipalities & Services | 2017 | 10 | $122,081 |
| City of Brantford | Municipalities & Services | 2025 | 540 | $132,864 |
| City of Brockville | Municipalities & Services | 2025 | 97 | $130,808 |
| City of Burlington | Municipalities & Services | 2025 | 554 | $135,593 |
| City of Burlington - Public Library | Municipalities & Services | 2003 | 1 | $101,454 |
| City of Cambridge | Municipalities & Services | 2025 | 304 | $133,747 |
| City of Chatham | Municipalities & Services | 1997 | 2 | $121,322 |
| City of Chatham-Kent | Municipalities & Services | 2000 | 6 | $120,240 |
| City of Clarence-Rockland | Municipalities & Services | 2025 | 34 | $128,696 |
| City of Clarence-Rockwood | Municipalities & Services | 2003 | 1 | $101,628 |
| City of Cornwall | Municipalities & Services | 2025 | 188 | $126,140 |
| City of Cornwall – Police Services | Municipalities & Services | 2025 | 90 | $137,081 |
| City of Dryden | Municipalities & Services | 2025 | 17 | $124,622 |
| City of East York (Borough) | Municipalities & Services | 1997 | 4 | $109,855 |
| City of Elliot Lake | Municipalities & Services | 2025 | 16 | $140,621 |
| City of Etobicoke | Municipalities & Services | 1997 | 8 | $110,383 |
| City of Greater Sudbury | Municipalities & Services | 2025 | 807 | $129,699 |
| City of Guelph | Municipalities & Services | 2025 | 673 | $125,726 |