Brian Rosen

Brian Rosen

Chief Operating Officer, Canada

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Professional Summary

As Chief Operating Officer of the Canadian Business, Brian is responsible for partnering with the National and Global Senior Leadership teams to develop and implement strategies to strengthen Colliers’ position as the leading real estate services firm in Canada.  Responsible for business development in addition to the day-to-day operations of the Canadian business and the long-term strategic planning process, Brian builds internal and external client relationships and leads teams to be enterprising, accountable and collaborative.  

Brian has spent his career fostering innovation and driving change, solving complex problems and continuously challenging and improving operations. An experienced General Manager, Corporate Strategist, Sales Leader and Marketer, Brian brings a wealth of senior leadership experience from Iron Mountain, the global leader in storage and information management services, with 1,400 facilities and more than 87.5 million square feet of storage space under management in over 50 countries. After working in increasingly senior roles with the firm, Rosen most recently served as Senior Vice President and General Manager for Iron Mountain Canada, responsible for both Sales and Operations nationally.  Throughout his decade plus at Iron Mountain, he successfully turned around operations, accelerated growth in mature businesses, and created new teams and management processes.


Brian has had extensive experience in both US & Canada and has held roles across different business areas including General Management/P&L Ownership, People Leadership, Management Consulting, and Corporate Strategy. With deep expertise in storage, logistics and warehousing, and technology solution selling, including cloud and AI/Machine Learning, Brian understands the unique needs of the real estate services industry.  


Princeton University: Bachelor of Arts, Molecular Biology

Harvard Business School: MBA, General Management

Memberships & Involvements


Ontario Advisory Board - Canadian Cancer Society

CEO Global Network

Featured News
Oct 25, 2019
The new digital face of Colliers Canada is now live
Colliers International Canada Launches New
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Mar 16, 2019
Colliers Bolsters Senior Leadership in Canada Appointing Brian Rosen COO, Canada
Colliers International announced today that Brian Rosen has joined the firm as Chief Operating Officer (COO) of Colliers Canada.
Read More
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