About Us


Regroupement pour la Trisomie 21 (RT21) is a registered charity based in Montreal, but serving hundreds of families in the province of Quebec. Its mission is to foster the full development of people with trisomy 21, promote their contribution in the society and defend their rights in addition of helping the families, caregivers and professionals who support them.

Have you recently welcomed a baby with trisomy 21 into your family? Do you have several questions? We invite you to consult our guide for new parents. It contains valuable information including a list of available resources, information on inclusive education, early intervention and breastfeeding, a list of services available at RT21 and more!

Please don’t hesitate to call or write to us if you have any questions or would like to come and meet with us. It will be a pleasure for us to support you and accompany you for the future. To reach our community worker, dial 514-850-0666, extension 225 or write to .

Services and activities

We offer many services and activities to our members such as access to specialized services (occupational therapy, speech therapy, physiotherapy) for the families waiting for public services, language stimulation program, conferences, parents meetings, recreational activities and parental support. To reach families as soon as the birth of their child, we distribute a New parent package in all CLSCs, hospitals and birth centers. We also have a day program for young adults to help them develop autonomy by using technology.

We offer a lot of information and support to families. You will find a lot of documents on our website. Most of them are in French but you’ll find below a practical guide to sexual education, for parents of teenagers and young adults with trisomy 21. Please don’t hesitate to call us if you have any question. It will be our pleasure to help you!

Awareness and advocacy

It’s important for RT21 to organize many awareness activities in addition of disseminating the most information possible to the public so we can reduce stereotypes and prejudices towards people with Down syndrome. Each year, the team and members of RT21 meets with many community workers and healthcare professionals to explain what is trisomy 21. We also do many interviews in various media. We invite you to take a look at the document below: « 21 questions about trisomy 21 ». You will find the answers to the 21 most asked questions about the condition and the persons living with it.

How to make a donation

You would like to support our mission and make a donation? You have a lot of possibilities!

Online: You can make a donation online using the secure website Simplyk.
Phone: Call us at 514-850-0666, extension 223 to make your donation.
In Memoriam: You would like to honour or remember a loved one who’s passed away while making a difference in the life of people with trisomy 21? Use the secure website Simplyk to do so and make sure to select the In Memoriam fund.
Monthly donation: Using the Simplyk website, you also have the option to give a monthly donation.

If you have a company and would like to make a donation or sponsor an event, please contact us at 514 850-0666 or email us at.

You would like to become a member at RT21? Nothing simpler. You just have to complete the online form. Please don’t hesitate to contact us if you have any question, it will be our pleasure to help you!

Phone: 514-850-0666