Tiree is a leading Canadian professional services company specializing in advisory, project management, and security and smart technology solutions. Our expertise is in leading the successful delivery of complex infrastructure projects from the very beginning to the very end. For the past 25 years, Tiree has been partnering with ambitious clients to drive change in the built environment, making a significant and lasting impact on communities in Canada and around the globe. Our commitment to excellence is evident in our track record: our multidisciplinary team, comprising of seasoned advisory, project management, and security experts, has successfully managed and delivered over $50 billion in construction value.
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Tiree Questions
The Tiree annual revenue was $56.8 million in 2026.
Mark Leblanc is the President of Tiree.
135 people are employed at Tiree.
Tiree is based in Ottawa, Ontario.
The NAICS codes for Tiree are [541, 54, 5415].
The SIC codes for Tiree are [737, 73].
Top Tiree Employees
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Mark Leblanc
President at Tiree
Ottawa, ON, CA21 -
1
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21
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2
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Catherine Jenkins
Director, People Operations at Tiree
Ottawa, ON, CA23 -
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Kirk Stalkie
Practice Lead, Digital Services at Tiree
Ottawa, ON, CA31 -
Nicholas Klimowicz
Director of Project Management at Tiree
Ottawa, ON, CA21 -
Tim Helferty
Account Executive at Tiree
Ottawa, ON, CA1
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