Association of Architectural Technologists of Ontario

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Welcome to the AATO

The Association of Architectural Technologists of Ontario is a registered not for profit organization founded in 1969. We are a government of Ontario legislated, self-governing body that regulates the use of titles through the Association of Architectural Technologists of Ontario Act, 1996, AATO BY Law 1-82.

AATO Golf Tournament 2026

Today we officially welcome Spring and open Early Bird Registration for the Annual AATO Golf Tournament.

Date: July 28, 2026

AATO CELEBRATES ARCHITECTURE WEEK | MAY 2026

AATO Members are invited to attend a FREE Virtual Session.
Topic: Advocacy & Legislative Changes: Condo Act & Architectural Technology

Date: Tuesday, May 5, 2026 | 12 noon to 1:00 p.m.

AATO Verifiable Digital Credentials

The AATO offers members ISO-compliant verifiable digital practice licence credentials to the ISO standards. These credentials are symbols of excellence on architectural technology.

Join Our Community

Are you passionate about innovation, design, and excellence in architecture? The AATO invites you to join our vibrant community of professionals dedicated to advancing the field of Architectural Technology.

Upcoming Events

Sector Advocacy

About AATO

The Association of Architectural Technologists of Ontario is a registered not for profit organization founded in 1969. We are a government of Ontario legislated, self-governing body that regulates the use of titles through the Association of Architectural Technologists of Ontario Act, 1996, AATO BY Law 1-82. We are the only governing authority in Ontario that protects the Architectural Technologist, Architectural Technician, Registered Building Technologist, Registered Building Technician and the French equivalents of these titles.

Come Join Us

AATO welcomes Ontario-based Architectural Technologists and Technicians and Building Technologists and Technicians to become full members in this more than 50 year-old Association.

Join Us