Ottawa Children's Treatment Centre
Registered OAP providerOther services at this location:

Ottawa Services
Speech-language pathology services that support communication, language development, and, where needed, alternative or augmentative communication tools.
The cost of the years-long waitlist in Ottawa isn't only financial. It is measured in delayed access to therapy during developmental windows that clinical research identifies as time-sensitive.
Only one centre in the Ottawa area is on record offering speech therapy for autistic individuals. If you know of another, let us know.
Other services at this location:
Families don’t have to wait idle for a spot to open. A separate directory tracks free and low-cost services available across Ontario now.
See free services available nowHow many children are on the Ontario autism waitlist in 2026?
As of March 4, 2026, 89,799 children are registered with the Ontario Autism Program. However, only 20,633 (23%) have an active Core Funding Agreement. This represents approximately 290% growth in registrations since 2019, with 69,166 children still waiting for essential funding.
Source: OAC FOI Mar 2026, FAO Report 2024 · Verify Link
Is the Ontario Autism Program underfunded?
Yes. The Financial Accountability Office (FAO) determined that $1.35 billion annually is needed to serve all registered children at 2018-19 service levels. The 2026-27 Ontario Budget allocated $965 million, leaving an estimated $385M+ annual shortfall. This gap is the primary driver of the perpetual 89,799+ child waitlist.
Source: Financial Accountability Office of Ontario [FAO] · Verify Link
Written by Spencer Carroll
Founder & Autism Advocate
Evidence on this page
Key claims are paired with their source, evidence tier, and verification date so readers can inspect the public record directly.
Early Start Denver Model (ESDM) delivered to children aged 18–30 months produced significant gains in IQ, adaptive behaviour, and autism severity — some children no longer met diagnostic criteria at follow-up
Cochrane systematic review finds evidence that early intensive behavioural intervention (EIBI) may produce positive effects on adaptive behaviour and communication for young children with ASD (low certainty of evidence)
WHO recommends accessible, community-based early interventions for children with autism — timely evidence-based psychosocial interventions improve communication and social engagement
89,799
children are registered in the Ontario Autism Program
23%
Only 20,633 children have active funding agreements (23%) — less than one in four
$965M
Ontario allocated $965M to the Ontario Autism Program in 2026-27