S.E.M. Construction

Founded in 2008 as a medical builder, S.E.M. Construction has grown into a trusted partner in healthcare, institutional, industrial, long-term care, multi-family, and affordable housing projects.

S.E.M. has marked 17 years of delivering quality, integrity, and value across Ontario’s construction landscape.

With a focus on building right and building safely, S.E.M. leads with professionalism, empowers its people, and drives every project to meaningful success through collaboration and care.

Ketza Construction Corp

Founded in the Yukon, Ketza Construction Corp has built a reputation as a trusted total solutions construction company, delivering excellence across commercial, institutional, and multi-residential projects. 2025 marks Ketza’s 50th anniversary, celebrating five decades of leadership and innovation in northern construction.

With over 475 completed projects and contract values exceeding $700 million, Ketza continues to lead with integrity, professionalism, and a deep commitment to building strong northern communities through lasting partnerships and quality craftsmanship.