| | Organization Name(s) | Located In |
| | Health Cards - Lost, Stolen,Renew, or Change of Address, Overview | Ontario |
 | Habitat for Humanity Canada, Habitat for Humanity Stratford-Perth | Stratford |
 | Habitat for Humanity Canada, Habitat for Humanity Stratford-Perth, ReStore | Stratford |
 | Hamilton Place | Listowel |
 | Hamlet Public School | Stratford |
| | Hampstead Women's Institute | Perth East |
 | Hancock, Dr Gregg - Obstetrician | Stratford |
 | Happy Valley Family Health Team | St Marys |
 | Hardwick, Dr James - General Surgeon | Stratford |
 | Hasegawa Clinic | Stratford |
 | Hazen, Dr Ward - Chiropractor | Stratford |
 | Heal A' Peel Lifestyle Centre | St Marys |
 | HealthKick | Seaforth |
 | Healthworks Tri-Chiropractic | Stratford |
 | Heart and Stroke Foundation of Ontario, Stratford Area Office | Stratford |
 | Heinbuck Funeral Home | Stratford |
 | Hemingway Chiropractic Office | Listowel |
 | Heritage Barn Museum | Kirkton |
| | Hermione Presents | Stratford |
 | Herpers Chagani Gowling | Stratford |
 | Hibbert United Church | Staffa |
 | Hidden Acres Mennonite Camp and Retreat Centre | Perth East |
 | Hidden Acres Mennonite Camp and Retreat Centre, Children's Camp Program | Perth East |
 | Highlands Christian Ministries | Stratford |
| | Hillside Manor | West Perth |
| | HipSaver Canada | Exeter |
 | Hiscock, Drs - Family Doctors | St Marys |
 | Hodes, Dr Peter - Family Doctor | Milverton |
 | Hoffmans Patient Transfer | South Huron |
 | Holland Bloorview Kids Rehabilitation Hospital | Toronto |
| | Holstein Breeders, Perth County | Perth County |
 | Holy Name of Mary Roman Catholic Church | St Marys |
 | Holy Name of Mary Roman Catholic School | St Marys |
 | Hope Air | Toronto |
 | Hope's Garden, Eating Disorders Support and Resource Centre | London |
 | Horizon ProResp | Stratford |
 | Hospital For Sick Children (The) | Toronto |
 | Hospital For Sick Children (The), Adolescence Substance Abuse Outreach Program | Toronto |
 | Hospital For Sick Children (The), Eating Disorder Program | Toronto |
 | Hospital For Sick Children (The), Substance Abuse Day Treatment Program | Toronto |
 | Hubbard Pharmacy | St Marys |
 | Hughes, Dr Brian | Stratford |
 | Huron Country Playhouse & Playhouse II | Grand Bend |
 | Huron County Library. Kirkton Branch | South Huron |
 | Huron Patient Transfer Service - Ambulance Service | Exeter |
 | Huron Perth Association of REALTORS® | Stratford |
 | Huron Perth Centre, Youth Justice Committee | Stratford |
 | Huron Perth Community Legal Clinic, Goderich | Goderich |
 | Huron Perth Community Legal Clinic, Stratford | Stratford |
| | Huron Perth Community Mental Health Services | Clinton |
 | Huron Perth Community Mental Health Services, Huron Perth Assertive Community Treatment Team Program | Seaforth |
 | Huron Perth Community Mental Health Services, Huron Perth Clinical Intensive Case Management Program | Clinton |
 | Huron Perth Community Mental Health Services, Huron Perth Crisis Intervention Program, Seaforth | Seaforth |
 | Huron Perth Community Mental Health Services, Huron Perth Crisis Intervention Program, Stratford | Stratford |
| | Huron Perth District Women's Institute | Perth County |
 | Huron Perth Healthcare Alliance, Eating Disorders Outreach Program | Stratford |
 | Huron Perth Healthcare Alliance, St Marys Memorial Hospital | St Marys |
 | Huron Perth Healthcare Alliance, St Marys Memorial Hospital, Baby Talk | St Marys |
 | Huron Perth Healthcare Alliance, St Marys Memorial Hospital, Breastfeeding Class | St Marys |
 | Huron Perth Healthcare Alliance, St Marys Memorial Hospital, Mother and Baby Clinic | St Marys |
 | Huron Perth Healthcare Alliance, Stratford General Hospital | Stratford |
 | Huron Perth Healthcare Alliance, Stratford General Hospital, Breastfeeding Clinic | Stratford |
 | Huron Perth Healthcare Alliance, Stratford General Hospital, Diabetes Education Centre | Stratford |
 | Huron Perth Healthcare Alliance, Stratford General Hospital, Ontario Breast Screening Program | Stratford |
 | Huron Perth Healthcare Alliance, Stratford General Hospital, Sexual Abuse Treatment Program | Stratford |
 | Huron Perth Healthcare Alliance, Stratford General Hospital, Volunteers of Stratford General | Stratford |
 | Huron Perth Quilters Guild | South Huron |
 | Huron Perth Seniors Mental Health Program | Seaforth |
| | Huron-Perth Catholic District School Board | Dublin |
| | Huron-Perth Catholic District School Board, Ontario Youth Apprenticeship Program | Stratford |
 | Huron-Perth Centre, Clinton | Clinton |
 | Huron-Perth Centre, Drop-in Clinic / Counselling | Stratford |
 | Huron-Perth Centre, Employee Assistance Programs | Clinton |
 | Huron-Perth Centre, Group Delta - Men's Violence Treatment Program | Clinton |
 | Huron-Perth Centre, Intensive Family Intervention | Stratford |
| | Huron-Perth Centre, Local Resolution Team (LRT) | Clinton |
 | Huron-Perth Centre, Renascence - Violence against Women Counselling Services | Clinton |
| | Huron-Perth Centre, SAI - Violence against Women Counselling Services | Clinton |
 | Huron-Perth Centre, Stratford | Stratford |
| | Huron-Perth Centre, Youth Justice Services, Diversion Program | Clinton |
 | Huron-Perth Centre, Youth Justice Services, Phoenix Rises | Clinton |
 | Huron-Perth Children's Aid Society, Camp Marafiki, Perth County | Stratford |
 | Huron-Perth Children's Aid Society, Caring Dad's | Stratford |
 | Huron-Perth Children's Aid Society, Community Centre, Yours, Mine and Ours - After School Program | Stratford |
 | Huron-Perth Children's Aid Society, Community Centre, Yours, Mine and Ours - Breakfast Club | Stratford |
 | Huron-Perth Children's Aid Society, Community Centre, Yours, Mine and Ours - Summer Day Camp | Stratford |
 | Huron-Perth Children's Aid Society, Family Enhancement Parenting Support Program, Stratford | Stratford |
 | Huron-Perth Children's Aid Society, Goderich | Goderich |
 | Huron-Perth Children's Aid Society, School Based Program, Huron | Goderich |
 | Huron-Perth Children's Aid Society, School Based Program, Perth | Stratford |
 | Huron-Perth Children's Aid Society, Stratford | Stratford |
 | Huron-Perth Children's Aid Society, Stratford, Rural Abuse Outreach and Helpline | Stratford |
| | Huron-Perth Lakers 'AAA' Minor Hockey Association | Clinton |
 | Hussey, Dr Andrew A - Urologist | Stratford |
 | Hydro One | Toronto |