| Habitat for Humanity Halton-Mississauga-Dufferin, Burlington, ReStore | Burlington |
| Habitat for Humanity Halton-Mississauga-Dufferin, Milton, ReStore | Milton |
| Halton & Mississauga RAAM Clinic, Burlington, Rapid Access Addiction Medicine (RAAM) | Burlington |
| Halton & Mississauga RAAM Clinic, Oakville - Cornwall Rd, Rapid Access Addiction Medicine (RAAM) | Oakville |
| Halton & Mississauga RAAM Clinic, Oakville - Kerr St, Rapid Access Addiction Medicine (RAAM) | Oakville |
| Halton & Mississauga RAAM Clinic, Georgetown, Rapid Access Addiction Medicine (RAAM) | Halton Hills |
| Halton & Mississauga RAAM Clinic, Milton, Rapid Access Addiction Medicine (RAAM) | Milton |
| Halton Alive | Burlington |
| Halton Amateur Radio Club | Georgetown |
| Halton Baby-Friendly Initiative | Halton Region |
| Halton Black History Awareness Society | Burlington |
| Halton Black Voices | Halton Region |
| Halton Catholic Children's Foundation | Burlington |
| Halton Catholic District School Board | Burlington |
| Halton Catholic District School Board, Ontario Youth Apprenticeship Program | Burlington |
| Halton Catholic District School Board, Milton - High Point Dr | Milton |
| Halton Catholic District School Board, Welcome Centre | Oakville |
| Halton Catholic District School Board - Thomas Merton Centre for Adult and Continuing Education | Oakville |
| Halton Catholic District School Board - Thomas Merton Centre for Adult and Continuing Education, Burlington Campus, Adult High School Diploma Program | Burlington |
| Halton Catholic District School Board - Thomas Merton Centre for Adult and Continuing Education, Milton Campus, Adult High School Diploma Program | Milton |
| Halton Catholic District School Board - Thomas Merton Centre for Adult and Continuing Education, Oakville Campus, Adult High School Diploma Program | Oakville |
| Halton Catholic District School Board - Thomas Merton Centre for Adult and Continuing Education, Literacy and Basic Skills | Oakville |
| Halton Catholic District School Board - Thomas Merton Centre for Adult and Continuing Education, Summer School Programs | Oakville |
| Halton Children's Aid Society, Burlington Office | Burlington |
| Halton Children's Aid Society, Milton Office | Milton |
| Halton Community and Cultural Association (The) | Burlington |
| Halton Community Housing Corporation, Oakville - Halton Regional Centre | Oakville |
| Halton District School Board, Burlington - JW Singleton Education Centre | Burlington |
| Halton District School Board, Ontario Youth Apprenticeship Program | Burlington |
| Halton District School Board, Fashion Forward - Free Prom Wear Program | Halton Region |
| Halton District School Board, Welcome Centre | Milton |
| Halton District School Board - Gary Allan Learning Centre, Burlington - Head Office | Burlington |
| Halton District School Board - Gary Allan Learning Centre, Halton Hills Campus | Georgetown |
| Halton District School Board - Gary Allan Learning Centre, Milton - EC Drury School for the Deaf | Milton |
| Halton District School Board - Gary Allan Learning Centre, Oakville - Kerr Street Mission | Oakville |
| Halton District School Board - Gary Allan Learning Centre, Oakville - Wyecroft Road | Oakville |
| Halton District School Board - Gary Allan Learning Centre, Programs for Elementary School Students | Halton Region |
| Halton District School Board - Gary Allan Learning Centre, Programs for High School Students | Halton Region |
| Halton Down Syndrome Association | Burlington |
| Halton Environmental Network | Halton Region |
| Halton Family Health Centre, Walk-in Medical Clinic | Burlington |
| Halton FASD, FASD Parent/Caregiver Support Group | Halton Region |
| Halton Field Hockey Club | Oakville |
| Halton Food for Thought, Student Nutrition Programs | Burlington |
| Halton Hawks FC Academy | Milton |
| Halton Hawks Girls Fastpitch Association | Halton Hills |
| Halton Healthcare, Acton, North Halton Mental Health Clinic | Acton |
| Halton Healthcare, Georgetown Hospital, Asthma Education Centre | Halton Hills |
| Halton Healthcare, Georgetown Hospital, Emergency Department | Halton Hills |
| Halton Healthcare, Georgetown Hospital | Halton Hills |
| Halton Healthcare, Georgetown Hospital, Maternity | Halton Hills |
| Halton Healthcare, Georgetown Hospital, Post Emergency Pediatric Clinic | Halton Hills |
| Halton Healthcare, Georgetown, North Halton Mental Health Clinic | Georgetown |
| Halton Healthcare, Milton District Hospital, Asthma Education Centre | Milton |
| Halton Healthcare, Milton District Hospital, Emergency Department | Milton |
| Halton Healthcare, Milton District Hospital, Maternity | Milton |
| Halton Healthcare, Milton District Hospital | Milton |
| Halton Healthcare, Milton District Hospital, Post Emergency Pediatric Clinic | Milton |
| Halton Healthcare, Milton District Hospital, Tender Loving Corner Breastfeeding Clinic and Baby Boutique | Milton |
| Halton Healthcare, Milton, North Halton Mental Health Clinic | Milton |
| Halton Healthcare, Mississauga Halton Central Intake Program - one-Link - Addictions and Mental Health Services Referral | Oakville |
| Halton Healthcare, Oakville Trafalgar Memorial Hospital, Asthma Education Centre | Oakville |
| Halton Healthcare, Oakville Trafalgar Memorial Hospital, Child and Adolescent Services | Oakville |
| Halton Healthcare, Oakville Trafalgar Memorial Hospital, Emergency Department | Oakville |
| Halton Healthcare, Oakville Trafalgar Memorial Hospital, Health Information Centre | Oakville |
| Halton Healthcare, Oakville Trafalgar Memorial Hospital, Maternity | Oakville |
| Halton Healthcare, Oakville Trafalgar Memorial Hospital, Mental Health - Child and Adolescent Clinic | Oakville |
| Halton Healthcare, Oakville Trafalgar Memorial Hospital, Mental Health - Child and Adolescent Eating Disorders Program | Oakville |
| Halton Healthcare, Oakville Trafalgar Memorial Hospital, Mental Health - Community Case Management | Oakville |
| Halton Healthcare, Oakville Trafalgar Memorial Hospital, Mental Health - Early Intervention in Psychosis Program | Oakville |
| Halton Healthcare, Oakville Trafalgar Memorial Hospital, Mental Health - Integrated Addiction Medicine Clinic | Oakville |
| Halton Healthcare, Oakville Trafalgar Memorial Hospital, Mental Health - Navigator Program | Oakville |
| Halton Healthcare, Oakville Trafalgar Memorial Hospital, Mental Health - Outpatient Psychotherapy Services | Oakville |
| Halton Healthcare, Oakville Trafalgar Memorial Hospital, Mental Health - Outpatient Services | Oakville |
| Halton Healthcare, Oakville Trafalgar Memorial Hospital, Mental Health - Psychotherapy Services for Concurrent Disorders | Oakville |
| Halton Healthcare, Oakville Trafalgar Memorial Hospital, Mental Health - Recovery Through Education of Adolescent and Children in Halton (REACH) | Oakville |
| Halton Healthcare, Oakville Trafalgar Memorial Hospital, Mental Health Day Program | Oakville |
| Halton Healthcare, Oakville Trafalgar Memorial Hospital | Oakville |
| Halton Healthcare, Oakville Trafalgar Memorial Hospital, Outpatient Clinics and Community Programs | Oakville |
| Halton Healthcare, Oakville Trafalgar Memorial Hospital, Outpatient Rehabilitation - Remote Care Management Program | Oakville |
| Halton Healthcare, Oakville Trafalgar Memorial Hospital, Pediatrics | Oakville |
| Halton Healthcare, Oakville Trafalgar Memorial Hospital, Post Emergency Pediatric Clinic | Oakville |
| Halton Hills Artistic Swimming Club | Georgetown |
| Halton Hills Concert Band | Georgetown |
| Halton Hills Gymnastics Centre | Georgetown |
| Halton Hills Minor Ball Hockey League | Halton Hills |
| Halton Hills Minor Baseball Association | Halton Hills |
| Halton Hills Minor Hockey Association | Georgetown |
| Halton Hills Minor Lacrosse Association | Georgetown |
| Halton Hills Mixed Volleyball League | Halton Hills |
| Halton Hills Pickleball Association | Halton Hills |
| Halton Hills Public Library, Georgetown Branch, Library Services | Georgetown |
| Halton Hills Public Library, Acton Branch, Library Services | Acton |
| Halton Hills Public Library, Children's and Youth Services | Halton Hills |
| Halton Hills Public Library, Community Fridge | Halton Hills |
| Halton Hills Public Library, Home Library Service | Halton Hills |
| Halton Hills Quilters' Guild | Halton Hills |
| Halton Hills Tennis Club | Georgetown |
| Halton Hills Transportation and Public Works, Youth Taxi Scrip Program | Halton Hills |
| Halton Hills. Halton Hills Cultural Centre and Library | Georgetown |
| Halton Hills. Recreation & Parks, Acton Arena and Community Centre, Facility Rentals & Recreation Programs | Acton |
| Halton Hills. Recreation & Parks, Acton Lions Indoor Pool, Facility Rentals & Recreation Programs | Acton |
| Halton Hills. Recreation & Parks, Acton, Halton Hills Youth Centre | Acton |
| Halton Hills. Recreation & Parks, Georgetown - Gellert Community Centre, Facility Rentals & Recreation Programs | Georgetown |
| Halton Hills. Recreation & Parks, Georgetown - Mold-Masters SportsPlex, Facility Rentals & Recreation Programs | Georgetown |
| Halton Hills. Recreation & Parks, Georgetown Indoor Pool, Facility Rentals & Recreation Programs | Georgetown |
| Halton Hills. Recreation & Parks, Georgetown, Halton Hills Youth Centre | Georgetown |
| Halton Hills. Recreation & Parks, March Break, Summer and School Holiday Camps | Georgetown |
| Halton Hills. Recreation & Parks, Parks and Trails | Halton Hills |
| Halton Hills. Recreation & Parks, Splash Pads | Halton Hills |
| Halton Hills. Recreation & Parks, Tennis Courts | Halton Hills |
| Halton Hills. Recreation & Parks, Recreation Programs | Halton Hills |
| Halton Hills. Recreation & Parks, Skate Parks | Halton Hills |
| Halton Hills. Recreation & Parks, Town of Halton Hills Youth Services | Halton Hills |
| Halton Hills. Transportation and Public Works, ActiVan Specialized Transit Services | Halton Hills |
| Halton Information Providers | Oakville |
| Halton Islamic Association | Burlington |
| Halton Learning Foundation | Burlington |
| Halton Medix, Walk-in Medical Clinic | Burlington |
| Halton Medix, Milton, Family Practice and Walk-in Clinic | Milton |
| Halton North Peel Naturalist Club | Halton Hills |
| Halton Outdoor Club | Burlington |
| Halton Pride Collective | Halton Region |
| Halton Region Volleyball Club | Burlington |
| Halton Regional Police Service, Mobile Crisis Rapid Response Team | Halton Region |
| Halton Regional Police Service, Text With 9-1-1 | Halton Region |
| Halton Regional Police Service, Child Abuse and Sexual Assault Unit | Oakville |
| Halton Regional Police Service, Project Lifesaver | Oakville |
| Halton Regional Police Service, Victim Quick Response Program+ | Oakville |
| Halton Regional Police Service, Victim Services Unit | Oakville |
| Halton Regional Police Service, Drug and Human Trafficking Unit | Oakville |
| Halton Regional Police Service, Halton Youth Justice Program | Oakville |
| Halton Regional Police Service, Pipes and Drums | Oakville |
| Halton Regional Police Service, Youth Programs | Oakville |
| Halton Rotaract | Halton Region |
| Halton Small Business Advisory Group Inc, Business Advisory Group | Halton Region |
| Halton Suicide Prevention Coalition, BeSafe App | Halton Region |
| Halton Tech for Teens, Computer Distribution Program | Halton Region |
| Halton Waldorf School | Burlington |
| Halton Women's Place, Emergency Shelter and Support Services | Halton Region |
| Halton Women's Place, SafePet Program | Burlington |
| Halton. Employment Halton, Oakville - Halton Regional Centre, Integrated Employment Services | Oakville |
| Halton. Employment Halton, Oakville - Halton Regional Centre, Halton Connects Program | Oakville |
| Halton. Global Business Centre | Oakville |
| Halton. Halton Region Public Health, Burlington - Health@3350, Sexual Health Clinic | Burlington |
| Halton. Halton Region Public Health, Exchange Works - Needle Exchange and Naloxone Distribution | Halton Region |
| Halton. Halton Region Public Health, Georgetown - Health@280, Sexual Health Clinic | Georgetown |
| Halton. Halton Region Public Health, Early Years Health | Oakville |
| Halton. Halton Region Public Health, Halton Prenatal Nutrition Program | Oakville |
| Halton. Halton Region Public Health, HaltonParents/Family Health Information Line | Oakville |
| Halton. Halton Region Public Health, Healthy Babies Healthy Children Program | Oakville |
| Halton. Halton Region Public Health, Immunization Services | Oakville |
| Halton. Halton Region Public Health, Oral Health | Oakville |
| Halton. Halton Region Public Health, School Years Health | Oakville |
| Halton. Halton Region Public Health, Oakville - Health@232, Sexual Health Clinic | Oakville |
| Halton. Halton Region Public Health, Stop Smoking Clinics | Halton Region |
| Halton. Small Business Centre, Small Business Enterprise Centre | Oakville |
| Halton. Small Business Centre, Youth Entrepreneur Programs | Oakville |
| Halton. Social and Community Services, Halton Access to Community Housing | Oakville |
| Halton. Social and Community Services, Halton Housing Help | Halton Region |
| Halton. Social and Community Services, Housing Stability Fund | Oakville |
| Halton. Social and Community Services, Low Income Program | Oakville |
| Halton. Social and Community Services, Oakville - Halton Regional Centre, Ontario Works | Halton Region |
| Halton. Social and Community Services, SPLIT (Subsidized Passes for Low Income Transit) | Halton Region |
| Halton. Social and Community Services - Children's Services, Child Care - Fee Subsidy Program | Oakville |
| Halton. Social and Community Services - Children's Services, Children's Developmental Services | Oakville |
| Halton-Peel Cruisers Sports for the Physically Disabled, Mississauga | Meadowvale |
| Halton-Peel Myeloma Support Group | Oakville |
| Hamilton Children's Choir, Hamilton Children's Choir Classes and Performances | Hamilton |
| Hamilton Health Sciences, Hamilton General Hospital, Emergency Room Medical Care | Hamilton |
| Hamilton Health Sciences, Juravinski Hospital, Emergency Room Medical Care | Hamilton |
| Hamilton Health Sciences, Infant Parent Program, Ron Joyce Children's Health Centre | Hamilton |
| Hamilton Health Sciences, Technology Access Clinic, Ron Joyce Children's Health Centre | Hamilton |
| Hamilton Regional Indian Centre, Canadian Prenatal and Nutritional Program | Hamilton |
| Hamilton Regional Indian Centre, Fetal Alcohol Spectrum Disorder (FASD) and Nutrition Program | Hamilton |
| Hamilton Regional Indian Centre, Hamilton Regional Indian Centre Literacy and Basic Skills | Hamilton |
| Hamilton/Burlington SPCA, Low Cost Spay/Neuter Program | Hamilton |
| Hawthorne Midwives | Milton |
| HealthSense Medical, Family Practice and Walk-in Clinic | Oakville |
| Heart To Home Meals, Meal Delivery Service | Milton |
| Heartache2Hope | Oakville |
| Heartache2Hope, Oakville, HOPELINE | Oakville |
| Hemophilia Ontario | Scarborough North |
| HIEC | Burlington |
| High Rendition Jazz Band | Oakville |
| High5 Day Care Inc, High5 Home Child Care - Licensed Home Child Care Agency | Halton North |
| Hindu Swayamsevak Sangh, Halton Region | Halton Region |
| HIPPY Halton, Home Instruction for Parents of Preschool Youngsters | Halton Region |
| HMC Connections, Oakville - Head Office | Oakville |
| HMC Connections, Burlington Office | Burlington |
| HMC Connections, Community Connections Program | Halton Region |
| HMC Connections, Employment Supports | Halton Region |
| HMC Connections, Georgetown Office | Georgetown |
| HMC Connections, Interpretation and Translation | Halton Region |
| HMC Connections, Language Instruction for Newcomers to Canada | Halton Region |
| HMC Connections, Milton Office | Milton |
| HMC Connections, North Oakville Office | Oakville |
| HMC Connections, Settlement Services | Halton Region |
| HMC Connections, Support for Ukrainians | Halton Region |
| HMC Connections, Transitional Housing for Newcomers to Halton | Burlington |
| Holly-Thompson Family Health Organization (FHO) | Milton |
| Holy Cross Roman Catholic Church, Holy Cross HELPS | Georgetown |
| Holy Family Pharmacy and Clinic, Walk-in Medical Clinic | Burlington |
| Home and Community Care Support Services Hamilton Niagara Haldimand Brant, Burlington Office | Burlington |
| Home and Community Care Support Services Hamilton Niagara Haldimand Brant, Hamilton Office | Hamilton |
| Home and Community Care Support Services Mississauga Halton, Etobicoke Office | Etobicoke Central |
| Home and Community Care Support Services Mississauga Halton, Milton Office | Milton |
| Home and Community Care Support Services Mississauga Halton, Mississauga Office | Mississauga |
| Home Suite Hope | Halton Region |
| Homewood Health Centre | Guelph |
| Hope Air | Toronto Downtown Central |
| Hope Bible Church Oakville, Recovery Group | Oakville |
| Hope Bible Church Oakville, The Market | Oakville |
| Hope Place Centres, Men's Residential Addiction Treatment | Halton Hills |
| Hope Place Centres, Women's Residential Addiction Treatment | Milton |
| Hope Place Centres, Community Based Addiction Treatment | Oakville |
| HOPE Start, Integrated Employment Services | Guelph |
| Horizons Opioid Treatment Service, Methadone and Suboxone Clinic | Burlington |
| Hospice Mississauga, Help Us Understanding Grief (HUUG) | Mississauga |
| Hospital for Sick Children, Adolescent Medicine | Toronto |
| Hospital for Sick Children | Toronto |
| How to Find - Affordable Housing & Help for Rent, Utilities or Property Taxes, Halton Region | Halton Region |
| How to Find - Crisis and Distress Services, Halton Region | Halton Region |
| How to Find - Dental Care & Free, Low Cost, Emergency & Special Needs Dental Services, Halton Region | Halton Region |
| How to Find - Doctors Accepting New Patients, Halton Region | Halton Region |
| How to Find - Emergency Shelters in Halton and Area | Halton Region |
| How to Find - Employment, Apprenticeship, Training and Literacy Programs, Halton Region | Halton Region |
| How to Find - ESL, FSL and LINC Classes, Halton Region | Halton Region |
| How to Find - Food Banks & Community Meals, Burlington | Burlington |
| How to Find - Food Banks & Community Meals, Milton | Milton |
| How to Find - Food Banks & Community Meals, Oakville | Oakville |
| How to Find - Help if You Witness or Suspect Human Trafficking or Sexual Exploitation, Halton Region | Halton Region |
| How to Find - Income Programs & Financial Assistance, Halton Region | Halton Region |
| How to Find - Newcomer to Canada (Immigrant / Refugee) Services, Halton Region | Halton Region |
| How to Find - Student / Youth Summer Jobs, Halton Region | Halton Region |
| HSR Public Transit, HSR Accessible Transportation Services Office, DARTS Transit | Hamilton |
| HSR Public Transit, HSR Customer Centre Services | Hamilton |
| Human Rights Legal Support Centre, Sexual Harassment and Assault Resource Exchange Project | Toronto |
| Human Rights Tribunal of Ontario | Toronto |
| Hum-WE Women's Hub, Support Services for Women | Milton |
| Huntington Society of Canada, Young People Affected by Huntington Disease | Canada |
| Hydrocephalus Canada | Etobicoke Central |
