Whether it is as a community of architects, engineers and designers, or as members of the communities in which we live, work and play, the McCallumSather team prides itself on continuous improvement and community involvement


The Young Architects of Hamilton (YAH) is a group of young Architects, Architectural Technicians, Interior Designers and other design professionals who live and/or work in the Hamilton area. YAH’s focus is to represent and promote the young and aspiring members of the architectural community in Hamilton. By facilitating conversations about how architecture and its many related fields can influence a community, YAH aims to help build up Hamilton’s bright future.


Sustainable Hamilton Burlington is a non-profit social enterprise in Ontario, Canada, dedicated to inspiring sustainability leadership in our business organizations for a healthier environment and thriving, prosperous communities.

We are active members of the Hamilton Burlington Society of Architects. The Hamilton/Burlington Society of Architects (HBSA) is comprised of members and affiliates from the local architecture community. The HBSA represents the Ontario Association of Architects (OAA) locally, providing communication, public relations and professional development for its members.


The Canada Green Building Council is a not-for-profit, national organization that has been working since 2002 to advance green building and sustainable community development practices in Canada. The CaGBC is the license holder for the LEED green building rating system in Canada and supports the WELL Building Standard and GRESB (Green Real Estate Sustainability Benchmark) in Canada. We are active members of the CaGBC, and have taken a leadership position on its Board.



We are proud members of the Canadian Association of Heritage Professionals. Drew Hauser is a designated CAHP professional and we have numerous associate members. The objectives of CAHP|ACECP, are to provide stewardship for cultural heritage resources, promote the highest standards of heritage conservation principled and practice, and to foster and promote public and legislative support for the conservation of heritage resources.

We are pleased to subsidize staff memberships for the SoBi Hamilton bike share program. We encourage our staff to use SoBi to travel to meetings and in our daily commute and are proud to support this innovative and successful bike share program that is so distinctive within our Hamilton Community.

We are excited to announce our newest membership, as Associate Member of the Scientific Equipment and Furniture Association.