| | Organization Name(s) | Located In |
 | Autism Ontario - Niagara Chapter | St Catharines |
 | Community Living - Fort Erie, Administration/Community Services | Fort Erie |
 | Community Living - Fort Erie, Family Support Services | Fort Erie |
 | Community Living - Grimsby, Lincoln and West Lincoln, Administration/Community Services | Beamsville |
 | Community Living - Grimsby, Lincoln and West Lincoln, Children's Weekend Respite Program | Beamsville |
 | Community Living Port Colborne - Wainfleet, Administrative Office | Port Colborne |
 | Community Living St Catharines, Administrative Offices | St Catharines |
 | Community Living St Catharines, St Catharines Preschool Services | St Catharines |
 | Community Living Welland Pelham | Welland |
 | Community Living Welland Pelham, Children's Services | Welland |
 | Community Living Welland Pelham, Family Support Services | Welland |
 | Contact Brant For Children's and Developmental Services | Brantford |
 | District School Board of Niagara | St Catharines |
 | District School Board of Niagara, Special Education Services | Niagara-on-the-Lake |
| | Down Syndrome Caring Parents, Niagara | Niagara Falls |
 | EquineAbility Therapeutic Riding Centre | Stevensville |
 | Family Counselling Centre Niagara, Niagara Falls | Niagara Falls |
 | Family Counselling Centre Niagara, Niagara Falls, Walk-In Counselling Clinic | Niagara Falls |
 | Family Counselling Centre Niagara, St Catharines | St Catharines |
 | Family Counselling Centre Niagara, Welland | Welland |
 | HATS - Horse Alternative Therapeutic Services | Pelham |
 | HeartSpace Physical Therapy for Children | St Catharines |
 | Niagara Support Services, Administration Office | Port Robinson |
 | Niagara Support Services, Family Support Services | Port Robinson |
 | Niagara Support Services, Preschool Services | Port Robinson |
 | Niagara. Region Public Health, Infant and Child Development Services - Niagara | Thorold |
 | Ontario. Ministry of Community and Social Services and Ministry of Children and Youth Services | Hamilton Central |
 | Ontario. Ministry of Community and Social Services and Ministry of Children and Youth Services, Assistance for Children with Severe Disabilities | Hamilton Central |
 | Ontario. Ministry of Community and Social Services and Ministry of Children and Youth Services, Assistance for Children with Severe Disabilities, Special Services at Home | Hamilton Central |
 | Pathstone Mental Health, Schmon Parkway Site, Psycho-Educational Assessments | Thorold |
 | Skerrett Psychology Professional Corporation | Fort Erie |