| Organization Name(s) | Located In |
| Habitat for Humanity, Greater Kingston & Frontenac | Kingston |
| Habitat for Humanity, Kingston & Frontenac, Habitat ReStore | Kingston |
| Habitat for Humanity, National Capital Region, Habitat NCR | Ottawa |
| Habitat For Humanity, Prince Edward-Hastings | Belleville |
| Habitat For Humanity, Prince Edward-Hastings, ReStore | Belleville |
| Haldimand-Norfolk Information Centre | Simcoe |
| Haliburton Broadcasting Group, Moose FM | Bancroft |
| Hallowell House | Picton |
| Hampton Lodge Residential Care Home | Ottawa |
| Handi House Ltd, Solea Footwear Divison | Ottawa |
| Hands: The Family Help Network, Mental Health Services: Children and Youth | Nipissing District |
| Handyman Connection, Ottawa Branch | Ottawa |
| Happy Face Nursery School and Child Care, Happy Face Nursery School - Winchester | Winchester |
| Happy Face Nursery School and Child Care, Happy Face Nursery School (Chesterville) | Chesterville |
| Happy Face Nursery School and Child Care, Happy Face School Age Program | Avonmore |
| Happy Trails Riding Stables Recreation Program | Gloucester |
| Harley Owners Group | Kingston |
| Harmony Home Seniors Apts | Picton |
| Harmony House | City of Ottawa |
| Harrowsmith-Verona Pastoral Charge, St. Paul's United Church, Harrowsmith | Harrowsmith |
| Harrowsmith-Verona Pastoral Charge, Trinity United Church, Verona | Verona |
| H'Art of Ottawa | Ottawa |
| H'art School of Smiles Inc | Kingston |
| Hartford Retirement Centre | Morrisburg |
| Hartington Community Caring Centre | Hartington |
| Harvest House Ministries | Ottawa |
| Hasting - Quinte Emergency Medical Services | Belleville |
| Hastings & Prince Edward Counties Health Unit, Belleville | Belleville |
| Hastings & Prince Edward Counties Health Unit, Healthy Smiles Ontario | Belleville |
| Hastings & Prince Edward Counties Health Unit, Quinte West | Trenton |
| Hastings & Prince Edward Transportation Solutions | Hastings County |
| Hastings and Prince Edward Counties Health Unit, Bancroft | Bancroft |
| Hastings and Prince Edward Counties Health Unit, Chronic Disease and Injury Prevention Program | Belleville |
| Hastings and Prince Edward Counties Health Unit, Communicable Disease Control Department | Belleville |
| Hastings and Prince Edward Counties Health Unit, Communicable Disease Control Department, Immunization Program, Belleville | Belleville |
| Hastings and Prince Edward Counties Health Unit, Communicable Disease Control Department, Immunization Program, Picton | Picton |
| Hastings and Prince Edward Counties Health Unit, Communicable Disease Control Department, Immunization Program, Trenton | Trenton |
| Hastings and Prince Edward Counties Health Unit, Communicable Disease Control Department, Sexual Health | Belleville |
| Hastings and Prince Edward Counties Health Unit, Communicable Disease Control/Tobacco Control Department, Immunization Services, Madoc | Madoc |
| Hastings and Prince Edward Counties Health Unit, Communicable Disease Control/Tobacco Control Department, Vaccine Preventable Diseases Program, Bancroft | Bancroft |
| Hastings and Prince Edward Counties Health Unit, Department of Oral Health | Belleville |
| Hastings and Prince Edward Counties Health Unit, Environmental Health Program | Belleville |
| Hastings and Prince Edward Counties Health Unit, Family Health Department | Belleville |
| Hastings and Prince Edward Counties Health Unit, Family Health Department, Child Health CARELine | Belleville |
| Hastings and Prince Edward Counties Health Unit, Food For You, Food For Two, Bancroft | Bancroft |
| Hastings and Prince Edward Counties Health Unit, Food For You, Food For Two, Trenton | Trenton |
| Hastings and Prince Edward Counties Health Unit, Healthy Babies, Healthy Children Program, Bancroft | Bancroft |
| Hastings and Prince Edward Counties Health Unit, Healthy Babies, Healthy Children Program, Belleville | Belleville |
| Hastings and Prince Edward Counties Health Unit, Healthy Babies, Healthy Children Program, Madoc | Madoc |
| Hastings and Prince Edward Counties Health Unit, Healthy Babies, Healthy Children Program, Prince Edward County | Picton |
| Hastings and Prince Edward Counties Health Unit, Healthy Babies, Healthy Children Program, Quinte West | Trenton |
| Hastings and Prince Edward Counties Health Unit, Madoc | Madoc |
| Hastings and Prince Edward Counties Health Unit, Prince Edward County | Picton |
| Hastings and Prince Edward Counties Mutual Fire Aid Association, Life Safety Committee | Quinte West |
| Hastings and Prince Edward District School Board | Belleville |
| Hastings and Prince Edward District School Board, Adult High School Diploma Program | Trenton |
| Hastings and Prince Edward District School Board, Athol- South Marysburgh Public School | Prince Edward County |
| Hastings and Prince Edward District School Board, Bancroft Public School | Bancroft |
| Hastings and Prince Edward District School Board, Bayside Public School | Belleville |
| Hastings and Prince Edward District School Board, Bayside Secondary School | Belleville |
| Hastings and Prince Edward District School Board, Bird's Creek School | Bancroft |
| Hastings and Prince Edward District School Board, Breadner Elementary School | Trenton |
| Hastings and Prince Edward District School Board, C.M.L.Snider Elementary | Wellington |
| Hastings and Prince Edward District School Board, Centennial Secondary School | Belleville |
| Hastings and Prince Edward District School Board, Centre Hastings Secondary School | Madoc |
| Hastings and Prince Edward District School Board, CHAP, Adult High School Diploma Program, Madoc | Madoc |
| Hastings and Prince Edward District School Board, Coe Hill | Bancroft |
| Hastings and Prince Edward District School Board, College St. P.S. | Trenton |
| Hastings and Prince Edward District School Board, Deseronto Public School | Deseronto |
| Hastings and Prince Edward District School Board, Earl Prentice Public School | Marmora |
| Hastings and Prince Edward District School Board, Foxboro Public School | Belleville |
| Hastings and Prince Edward District School Board, Frankford Public School | Frankford |
| Hastings and Prince Edward District School Board, Harmony | Corbyville |
| Hastings and Prince Edward District School Board, Harry J. Clarke | Belleville |
| Hastings and Prince Edward District School Board, Hermon Public School | Bancroft |
| Hastings and Prince Edward District School Board, Hillcrest Public School | Belleville |
| Hastings and Prince Edward District School Board, Madoc Public School | Madoc |
| Hastings and Prince Edward District School Board, Madoc Township Public School | Madoc |
| Hastings and Prince Edward District School Board, Marmora Senior Public School | Marmora |
| Hastings and Prince Edward District School Board, Massassaga-Rednersville Public School | Belleville |
| Hastings and Prince Edward District School Board, Maynooth Public School | Maynooth |
| Hastings and Prince Edward District School Board, Moira Secondary School | Belleville |
| Hastings and Prince Edward District School Board, North Hastings High School | Bancroft |
| Hastings and Prince Edward District School Board, North Hastings Senior Elementary School | Bancroft |
| Hastings and Prince Edward District School Board, North Trenton Public School | Trenton |
| Hastings and Prince Edward District School Board, Park Dale Public | Belleville |
| Hastings and Prince Edward District School Board, Pinecrest Memorial Elementary School | Bloomfield |
| Hastings and Prince Edward District School Board, Prince Charles Public School - Trenton | Trenton |
| Hastings and Prince Edward District School Board, Prince Edward Collegiate Institute | Picton |
| Hastings and Prince Edward District School Board, Prince of Wales Public School | Belleville |
| Hastings and Prince Edward District School Board, Queen Elizabeth Public, Trenton | Trenton |
| Hastings and Prince Edward District School Board, Queen Elizabeth Public School, Picton | Picton |
| Hastings and Prince Edward District School Board, Queen Elizabeth Public School Belleville | Belleville |
| Hastings and Prince Edward District School Board, Queen Victoria Public | Belleville |
| Hastings and Prince Edward District School Board, Quinte Secondary School | Belleville |
| Hastings and Prince Edward District School Board, Quinte Secondary School, Adult High School Diploma Program, Belleville | Belleville |
| Hastings and Prince Edward District School Board, SH Connor Public School | Tweed |
| Hastings and Prince Edward District School Board, Sir John A. Macdonald Public School | Belleville |
| Hastings and Prince Edward District School Board, Sophiasburgh Central | Picton |
| Hastings and Prince Edward District School Board, South Hastings Alternative Personalized Education | Belleville |
| Hastings and Prince Edward District School Board, Stirling Junior Public | Stirling |
| Hastings and Prince Edward District School Board, Stirling Primary Public | Stirling |
| Hastings and Prince Edward District School Board, Stirling Senior Public School | Stirling |
| Hastings and Prince Edward District School Board, Susanna Moodie Elementary School | Belleville |
| Hastings and Prince Edward District School Board, The Loft, Adult High School Diploma Program, Bancroft | Bancroft |
| Hastings and Prince Edward District School Board, Trenton High School | Trenton |
| Hastings and Prince Edward District School Board, Tweed-Hungerford Senior School | Tweed |
| Hastings and Prince Edward District School Board, Tyendinaga Public School | Shannonville |
| Hastings and Prince Edward District School Board, VP Carswell Public School | Trenton |
| Hastings and Prince Edward Learning Foundation | Belleville |
| Hastings and Prince Edward Learning Foundation, Food for Learning Program | Belleville |
| Hastings and Prince Edward Regimental Museum | Belleville |
| Hastings and Prince Edward Stewardship Councils | Tweed |
| Hastings County, Children's Services | Belleville |
| Hastings County, Hastings Centennial Manor, Bancroft | Bancroft |
| Hastings County, Home Visitor Program | Belleville |
| Hastings County, Social Services, Housing Programs Branch | Belleville |
| Hastings County, Social Services, Housing Programs Branch, Belleville Office | Belleville |
| Hastings County, Social Services, Housing Programs Branch, Community Relations Programs | Belleville |
| Hastings County, Social Services, Housing Programs Branch, Trenton Office | Trenton |
| Hastings County, Social Services, Low-Income Energy Assistance Program (LEAP) | Belleville |
| Hastings County, Social Services, Ontario Works, Bancroft & Maynooth | Bancroft |
| Hastings County, Social Services, Ontario Works, Belleville | Belleville |
| Hastings County, Social Services, Ontario Works, Madoc | Madoc |
| Hastings County, Social Services, Ontario Works, Trenton | Trenton |
| Hastings County, Social Services, Winter Warmth Fund | Belleville |
| Hastings Park Bible Church | Belleville |
| Hastings Prince Edward Land Trust | Belleville |
| Hastings/Quinte Long Term Care Services | Belleville |
| Hawaiian and Tahitian Dancing | Kingston |
| Hawkesbury and District General Hospital | Hawkesbury |
| Hawkesbury and District General Hospital, Centre Royal-Comtois Centre, Community Mental Health Clinic | Hawkesbury |
| Hawkesbury and District General Hospital, Centre Royal-Comtois Centre, Sexual Assault Program | Hawkesbury |
| Hawkesbury and District General Hospital, Diabetes Education Program | Hawkesbury |
| Hawkesbury and District General Hospital, Emergency Department | Hawkesbury |
| Hawkesbury and District General Hospital, Secondary Stroke Prevention Clinic | Hawkesbury |
| Hawkesbury and Region Chamber of Commerce | Hawkesbury |
| Hawkesbury Central Food Bank | Hawkesbury |
| Hawkesbury Golf and Curling Club | Hawkesbury |
| Hawkesbury Police Explorers | Hawkesbury |
| Hawkesbury Public Library | Hawkesbury |
| Hawkesbury. Municipal Offices | Hawkesbury |
| Head, Clara & Maria Public Library | Head, Clara and Maria |
| Head, Clara and Maria. Municipal Office | Head, Clara and Maria |
| Healing Arts Centre & Yoga Studio (The) | Brockville |
| Health Nexus | Toronto |
| Health Pursuits Reading and Research: MEND | Kingston |
| Heart and Stroke Foundation of Ontario, Belleville | Belleville |
| Heart and Stroke Foundation of Ontario, Brockville Office | Brockville |
| Heart and Stroke Foundation of Ontario, Ottawa Office | Ottawa |
| Heart and Stroke Foundation of Ontario, Research, Health Promotion and Advocacy | Belleville |
| Heart and Stroke Foundation of Ontario, Support Groups | Belleville |
| Heart of Hastings Hospice | Madoc |
| Heart of Ottawa Medical Centre, Elgin St | Ottawa |
| Heart To Heart Seniors' Services | Kingston |
| Heart Wise Exercise Program | Ottawa |
| Hearthmakers Energy Cooperative | Kingston |
| Heartwood, Cornwall | Cornwall |
| Heartwood House: au coeur de la vie | Ottawa |
| Heartwood House: au coeur de la vie, Alternative Learning Styles and Outlooks | Ottawa |
| Heartwood House: au coeur de la vie, Alternative Learning Styles and Outlooks, Literacy and Basic Skills | Ottawa |
| Helen Henderson Care Centre | Amherstview |
| Helen Tufts Nursery School | Kingston |
| Hellenic Orthodox Community of Kingston | Kingston |
| Helping Hands Caregivers, Non-Medical Home Care for Seniors | Orléans |
| Helping Hands Food Bank, Marmora | Marmora |
| Helping Hands for Special Needs Families | Kanata |
| Helping With Furniture | Ottawa |
| Henderson Child Care Centre | Kingston |
| Heritage Belleville | Belleville |
| Heritage Canada Foundation (The) | Ottawa |
| Heritage Court Seniors | Kingston |
| Heritage Hearing Care | Pembroke |
| Heritage Heights Retirement Residence | Cornwall |
| Heritage House Inc. | Belleville |
| Heritage House Museum | Smiths Falls |
| Heritage Manor Retirement Home | Cornwall |
| Heron Emergency Food Centre | Ottawa |
| High Horizons | Ottawa |
| Highland Fence & Decks, General Contracting, Wheelchair Accessible Renovations | Combermere |
| Highland Shores Children's Aid, Bancroft | Bancroft |
| Highland Shores Children's Aid, Bancroft, Permanency Planning | Bancroft |
| Highland Shores Children's Aid, Belleville | Belleville |
| Highland Shores Children's Aid, Belleville, Alternative Dispute Resolution | Belleville |
| Highland Shores Children's Aid, Belleville, Foster Care | Belleville |
| Highland Shores Children's Aid, Belleville, Permanency Planning | Belleville |
| Highland Shores Children's Aid, Helping Hands Program | Belleville |
| Highland Shores Children's Aid, Residential Treatment Program | Belleville |
| Highland Shores Children's Aid, Trenton | Trenton |
| Highland Shores Children's Aid, Trenton, Alternative Dispute Resolution | Trenton |
| Highland Shores Children's Aid, Trenton, Permanency Planning | Trenton |
| Highway Pentecostal Church, Brockville | Brockville |
| Hillcrest Manor | Mountain |
| Hillview Christian School | Bancroft |
| Historical Society of Ottawa | Ottawa |
| HIV & AIDS Legal Clinic Ontario | Toronto |
| HIV/AIDS Regional Services | Kingston |
| HIV/AIDS Regional Services, Leeds and Grenville Regional Program | Kingston |
| HJ McFarland Memorial Home | Picton |
| HMA Pharmacy, Ottawa, Baseline Rd | Ottawa |
| Holiday Retirement Corp., Crystal View Lodge | Nepean |
| Holistic Clinic | Ottawa |
| Holistic Hands Massage Therapy | Killaloe, Hagarty and Richards |
| Hollister Limited, Secure Start Service | Aurora |
| Holstein Canada, Lennox & Addington Holstein Club | Lennox and Addington County |
| Holy Family Roman Catholic Church | Kingston |
| Holy Name of Jesus Roman Catholic Church | Kingston |
| Holy Rosary Catholic Church | Belleville |
| Holy Trinity Evangelical Lutheran Church | Belleville |
| Home Instead Senior Care | Ottawa |
| HomeFlex, Renovations for Seniors | Ottawa |
| Homestead Land Holdings Limited | Kingston |
| Homewatch CareGivers | Ottawa |
| Hope Air | Toronto |
| Hopewell, Eating Disorder Support Centre | Ottawa |
| Hôpital Montfort | Ottawa |
| Hôpital Montfort, Assertive Community Treatment Team, Ottawa East | Ottawa |
| Hôpital Montfort, Diabetes Clinic | Ottawa |
| Hôpital Montfort, Mental Health Program | Ottawa |
| Hôpital Montfort, Mental Health Program, Prescott and Russell Community Mental Health Centre, Rockland | Rockland |
| Horne's Ferry, Ferry to USA | Wolfe Island |
| Horses Enriching People | Ottawa |
| Horton. Municipal Office | Horton |
| Hospice Kingston | Kingston |
| Hospice Lennox and Addington | Napanee |
| Hospice North Hastings | Bancroft |
| Hospice Prince Edward | Picton |
| Hospice Renfrew | Renfrew |
| Hospital for Sick Children (The), Motherisk | Toronto |
| Hospital for Sick Children (The), Ontario Poison Centre | Toronto |
| Hostelling International - Canada, National Office | City of Ottawa |
| Hotel Dieu Hospital | Kingston |
| Hotel Dieu Hospital, Breast Assessment Program | Kingston |
| Hotel Dieu Hospital, Cardiac Rehabilitation Centre | Kingston |
| Hotel Dieu Hospital, Child Development Centre | Kingston |
| Hotel Dieu Hospital, Child Development Centre, Infant Development Program | Kingston |
| Hotel Dieu Hospital, Children's Outpatient Centre | Kingston |
| Hotel Dieu Hospital, Detoxification Centre | Kingston |
| Hotel Dieu Hospital, Detoxification Centre, Relapse Prevention Group | Kingston |
| Hotel Dieu Hospital, Diabetes Education & Management Centre | Kingston |
| Hotel Dieu Hospital, HIV Clinic | Kingston |
| Hotel Dieu Hospital, Mental Health Outpatient Program | Kingston |
| Hotel Dieu Hospital, Mental Health Program, Adult Outpatient Services | Kingston |
| Hotel Dieu Hospital, Mental Health Program, Child and Adolescent Psychiatry | Kingston |
| Hotel Dieu Hospital, Mental Health Program, Eating Disorder Clinic (Adult) | Kingston |
| Hotel Dieu Hospital, Mental Health Program, Family Court Clinic | Kingston |
| Hotel Dieu Hospital, Mental Health Program, Heads Up, Belleville | Belleville |
| Hotel Dieu Hospital, Mental Health Program, Heads Up, Napanee | Napanee |
| Hotel Dieu Hospital, Urgent Care Centre | Kingston |
| Hotel Dieu Hospital, Volunteer Resources | Kingston |
| Hotel Dieu Hospital, Weeneebayko Patient Services and Geaganano Residence | Kingston |
| Hotel Dieu Hospital, Winter Coat Drive | Kingston |
| House of Hope - La Maison de l'Espérance | Ottawa |
| House of Hope and Healing | Ottawa |
| House of Lazarus (The) | Mountain |
| Housing Help | Ottawa |
| Howe Island Ferry | Howe Island |
| Human Resources Professional Association of Ontario, Brockville and District Branch | Brockville |
| Human Rights Legal Support Centre | Toronto |
| Humanist Association of Ottawa | Ottawa |
| Huntington Society of Canada, Eastern Ontario Resource Centre | Ottawa |
| Hydro One Networks Inc. | Markham |