There are 9 Developmental Services Ontario agencies across the province. To apply for services online, click here to register your account and begin your application. If you don’t want to submit an online application, you must connect with your area DSO. If you are applying on behalf of the person looking for services, enter the person's current postal code or search by the county / region where they live to connect with the correct DSO agency.
Please click on one of the options below:
Search by my current location
Use this option find the right agency for the location you're in right now.
Find by county / region
Click on your area DSO below to find their direct contact information
DSO Central East Region
- Durham
- Haliburton
- Kawartha Lakes
- Northumberland
- Peterborough
- Port Severn
- Simcoe
- York
DSO Central West Region
- Dufferin
- Halton
- Peel
- Waterloo
- Wellington
DSO Eastern Region
- Ottawa Region
- Prescott-Russell
- Renfrew
- Stormont, Dundas & Glengarry
DSO Hamilton-Niagara Region
- Brant
- Brantford
- Hagersville
- Haldimand
- Hamilton
- Niagara
- Norfolk
DSO North East Region
- Britt
- Cochrane
- James Bay Coast
- MacTier
- Muskoka
- Nipissing
- Parry Sound
- Timiskaming
DSO Northern Region
- Algoma
- Dryden
- Kenora
- Manitoulin
- Rainy River
- Sault Ste. Marie
- Sudbury
- Sudbury District
- Thunder Bay
DSO South East Region
- Frontenac
- Hastings
- Lanark
- Leeds & Grenville
- Lennox & Addington
- Merrickville
- Prince Edward
DSO South West Region
- Bruce
- Chatham-Kent
- Dundalk
- Elgin
- Essex
- Grey
- Huron
- Lambton
- London-Middlesex
- Middlesex
- Oxford
- Perth
- Sarnia-Lambton
- Windsor-Essex
DSO Toronto Region
- Etobicoke
- North York
- Scarborough
- Toronto