Contact Us

In 1951, brothers Don and David Ellis Smith broke ground for the first time in London, Ontario. Today, EllisDon is leading the way as a 100% employee-owned construction services & technology company with an unmatched suite of in-house services

Join Us

Our Legacy

  • 1951 – A Local Contractor

    Our founders Don and David start EllisDon in London, Ontario, with just four employees and a vision for the future.

  • 1956 – A First for Canada

    After just five years, EllisDon becomes the first contractor in Canada to own our own tower crane.

  • 1968 – Future Forward

    We computerize our accounting and cost controls systems—the first to do it in Canada, again.

  • 1971 – Safety First

    We’re also among the first to adopt and implement a Corporate Safety Strategy on all job sites to protect and prioritize our people.

  • 1989 - Redefining the Stadium Experience

    Our people make history by designing and building the world’s first retractable rooftop stadium for Toronto’s iconic SkyDome (a.k.a the Rogers Centre).

  • 1990 – Research & Development

    We continue to build a legacy of leadership by establishing the industry’s first freestanding R&D Department, dedicated to building science innovation, to better serve our clients.

  • 1996 – New Leadership

    Geoff Smith steps up as our new President and CEO. His dad left some big shoes to fill, but Geoff is a builder and a visionary who will go on to create our employee ownership program.

  • 2003 – The Diamond Award of Excellence

    Edgebuilder, the proprietary project management software we developed and deployed, wins the highest honour at the Canadian Information Productivity Awards.

  • 2004 – First Public-Private-Partnership Project

    EllisDon is awarded the Brampton Civic Hospital (formerly the William Osler Health Centre), marking its first PPP contract and the beginning of its leadership in the sector.

  • 2011 – Build Smarter, Not Harder

    The PwC Tower project is completed, with an end-to-end building information network. It’s the most advanced IP-networked commercial building in Canada, one of the first “smart” commercial towers with a unified base building network in North America.

  • 2018 – Acquiring Carillion

    With the success of this acquisition, EllisDon becomes the sole service provider on behalf of Royal Ottawa Hospital, Oakville Trafalgar Memorial Hospital, William Osler Health System, and Sault Area Hospital, and the third largest provider of healthcare services in Canada.


  • 2020 – 100% Employee-Owned

    EllisDon unveils a plan to transfer full ownership to its employees, moving toward a completely employee-owned company.

  • 2023 – A New Era For EllisDon

    Kieran Hawe is appointed the new President and CEO of EllisDon. Across 23 years of service at the company, from M&E Coordinator to Chief Operating Officer and Executive Vice President of Construction, he has already shaped EllisDon’s past and present—and now he’ll shape its future.

  • 2025 - On The Leading Edge of Safety

    EllisDon unites with other leading general contractors in Canada to form the Canadian Construction Safety Council to elevate safety performance and establish innovative new industry benchmarks to protect construction workers nationwide.

  • 2025 – A Healthier Future For Mississauga

    EllisDon reaches Financial Close on the largest hospital project in Canada’s history: to design, build, finance, and maintain a 2.8M ft2 campus for the Peter Gilgan Mississauga Hospital and Shah Family Hospital for Women and Children.

  • Our founders Don and David start EllisDon in London, Ontario, with just four employees and a vision for the future.

Testimonial

Everyone at EllisDon is building together—up from our shared foundations, toward the skyline of the future.

Quote: “At EllisDon, we are guided by our values, and those values are the essence of who we are and what our purpose is - to deliver great careers to each other. How we achieve our purpose will never change and the foundational values of respect, integrity, trust and entrepreneurial enthusiasm will always remain.”

Kieran HawePresident & Chief Executive Officer

Insights

Let's start a conversation

Whether you’re exploring partnership or seeking guidance on a development, we’re ready to help you move forward with confidence.

Contact Us