EllisDon
EllisDon is a Canadian employee-owned construction services company active in building, civil infrastructure, industrial, commercial, institutional, and public-private partnership projects.
Last updated August 25, 2026
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Overview
EllisDon is a Canadian employee-owned construction services company founded and incorporated in 1951 in London, Ontario, by brothers Don Ellis Smith and David Ellis Smith. It is headquartered in Mississauga and operates across a broad range of construction and infrastructure markets, including commercial buildings, healthcare, education, transportation, civil works, industrial facilities, residential and hospitality developments, culture and recreation venues, and alternative-energy projects. The company began as a local contractor but developed an early reputation for adopting new management and construction technologies. Between 1956 and 1968, EllisDon computerized its accounting and cost-control systems and operated a purchased tower crane, making it an early Canadian construction-industry adopter of both practices. In 1971, it introduced a corporate safety strategy intended to improve job-site safety and formalize safety management across its operations. EllisDon expanded beyond London during the 1970s, establishing operations in Edmonton and Saudi Arabia between 1974 and 1976. Its international work later included projects in Latvia and Lithuania after the political opening that followed the end of the Soviet Union, as well as a first project in Malaysia in 1997. The company has continued to combine domestic Canadian construction with selected international work, while maintaining a large Canadian project base. Several landmark projects helped establish the brand's profile. EllisDon received the construction-management contract for Toronto's Metro Toronto Convention Centre in 1982 and subsequently built the SkyDome, now known as Rogers Centre. Completed in 1989, the stadium was recognized for its retractable roof and became one of the company's best-known projects. Other notable work has included hospitals, airports, libraries, shopping centres, university buildings, transportation systems, government facilities, and major redevelopment programs. The company created what it described as the construction industry's first freestanding research and development department in 1990. It also became the first Canadian company to build in Latvia and Lithuania in 1993. In 1996, Geoff Smith, who had joined EllisDon full-time in 1982 and was Don Smith's son, became president and chief executive officer. He later served as executive chair after handing the CEO role to Kieran Hawe in June 2023. EllisDon has been active in public-private partnership delivery and alternative project-financing models. In 2004, it participated in a public-private partnership for the William Osler Health Centre in Brampton, Ontario. In 2018, following the liquidation of UK-based Carillion, EllisDon acquired Carillion's interests in four Ontario hospital projects and became the sole service provider for those projects. Sustainability and safety have also been recurring elements of the company's positioning. EllisDon launched the Carbon Impact Initiative Action Plan in 2016, working with industry and government participants on strategies intended to support Canada's climate commitments and the transition toward a lower-carbon economy. The Joyce Centre for Partnership and Innovation at Mohawk College was identified as the first pilot project under the initiative and as Ontario's first net-zero institutional building. EllisDon has also received employer, safety, environmental, and infrastructure-industry recognition, including listings among Canada's top employers and greenest employers. In 2024, the company began demolition and revitalization work at Ontario Place in Toronto. Its present identity is that of a diversified construction and infrastructure-services provider whose business spans construction management, general contracting, civil and transportation work, project development and delivery, and public-private partnership services.
History
EllisDon was founded and incorporated in 1951 in London, Ontario, by brothers Don Ellis Smith and David Ellis Smith. It initially operated as a local contractor. During its first decades, the company placed unusual emphasis on operational systems and construction technology. From 1956 to 1968, it computerized accounting and cost-control processes and operated a purchased tower crane, developments that marked it as an early adopter within Canada's construction sector. In 1971, EllisDon introduced a corporate safety strategy intended to improve job-site safety and establish a more systematic approach to safety management. The company began geographic expansion during the 1970s. It established operations in Edmonton, Alberta, and Saudi Arabia between 1974 and 1976. Over time, EllisDon developed an international presence while continuing to build a substantial Canadian business. In 1990, it established a freestanding research and development department, described in the reference material as the first of its kind in the construction industry. In 1993, following the removal of the Iron Curtain, EllisDon became the first Canadian company to build in Latvia and Lithuania. It completed its first Malaysian project in 1997. A major period of profile-building began with large Canadian institutional and entertainment projects. In 1982, EllisDon won the construction-management contract for the Metro Toronto Convention Centre. It also built Toronto's SkyDome, completed in 1989 and later renamed Rogers Centre. The stadium's retractable roof made it a prominent engineering and construction project. EllisDon subsequently delivered projects in healthcare, transportation, education, government, retail, culture, recreation, aviation, industrial construction, and hospitality. Leadership continuity within the Smith family was reflected in the career of Geoff Smith, Don Smith's son. Smith joined EllisDon as a full-time employee in 1982 and became president and chief executive officer in 1996. During the following period, EllisDon expanded its project-delivery capabilities, including participation in public-private partnerships. In 2004, it participated in the public-private partnership for the William Osler Health Centre in Brampton, Ontario. The company later delivered Toronto's MaRS Convergence Centre Building B in 2005 and completed construction and installation work for Dubai Waterfront in 2008. EllisDon continued its transportation and sustainable-building work in the following decade. It completed the Winnipeg International Airport terminal building in 2010, identified as Canada's first LEED-certified airport terminal. In 2016, it launched the Carbon Impact Initiative Action Plan with industry and government leaders. The initiative sought to help transform the market toward lower-carbon construction and support Canada's international climate commitments. Mohawk College's Joyce Centre for Partnership and Innovation became the initiative's first pilot project and was identified as Ontario's first net-zero institutional building. The company expanded its role in four Ontario hospital projects in 2018. When joint-venture partner Carillion entered liquidation in the United Kingdom, EllisDon acquired Carillion's interests in the Royal Ottawa Hospital, Oakville-Trafalgar Memorial Hospital, Brampton Civic Hospital, and Sault Area Hospital projects. EllisDon thereby became the sole service provider for those projects. EllisDon has received recognition related to infrastructure, employment, environmental performance, safety, and business management. The reference material records its inclusion in Renew Canada's Top 100 Infrastructure Projects in 2018 with Platinum Status, repeated recognition among Canada's top employers, recognition as one of Canada's Greenest Employers in 2017, inclusion in Deloitte's 50 Best Managed Companies in 2017, and recognition as Canada's Safest Employer in 2016. In June 2023, Kieran Hawe, previously EllisDon's chief operating officer, succeeded Geoff Smith as president and chief executive officer. Smith remained executive chair of the board. In 2024, EllisDon began demolition and revitalization work at Ontario Place in Toronto. The company remains an active employee-owned construction-services provider headquartered in Mississauga, with capabilities spanning complex buildings, civil infrastructure, institutional facilities, industrial projects, and public-private partnership delivery.
- 2024
Ontario Place revitalization work begins
[1]EllisDon began demolition and revitalization work at Ontario Place in Toronto.
- 2023
Kieran Hawe becomes president and CEO
[1]Kieran Hawe succeeded Geoff Smith as president and chief executive officer, while Smith became executive chair.
- 2018
Carillion interests acquired in four Ontario hospital projects
[1]EllisDon acquired Carillion's interests in four Ontario hospital projects after Carillion entered liquidation in the United Kingdom.
- 2016
Carbon Impact Initiative launched
[1]EllisDon launched an action plan focused on supporting a lower-carbon construction market and Canada's climate commitments.
- 2010
Winnipeg airport terminal completed
[1]The company completed Winnipeg International Airport's terminal building, described as Canada's first LEED-certified airport terminal.
- 2004
William Osler Health Centre public-private partnership
[1]EllisDon participated in the public-private partnership for the William Osler Health Centre in Brampton, Ontario.
- 1996
Geoff Smith becomes president and CEO
[1]Geoff Smith, who had joined EllisDon full-time in 1982, became president and chief executive officer.
- 1993
Expansion into Latvia and Lithuania
[1]EllisDon became the first Canadian company to build in Latvia and Lithuania after the political opening that followed the end of the Soviet Union.
- 1990
Research and development department established
[1]EllisDon established a freestanding research and development department.
- 1989
SkyDome is completed
[1]EllisDon completed Toronto's SkyDome, later renamed Rogers Centre, with a retractable roof.
Products and positioning
A diversified, employee-owned Canadian construction and infrastructure-services company positioned around complex project delivery, construction management, safety, technological adoption, sustainability, and public-private partnership expertise.
Construction services
Construction management
EllisDon provides construction-management services for large and technically complex projects. Its work includes coordinating design and construction participants, managing schedules and costs, procuring trade contractors, and delivering institutional, commercial, infrastructure, and public-sector facilities. The Metro Toronto Convention Centre and major hospital and transportation projects illustrate the company's role in managing complex construction programs.
Infrastructure construction
Civil and transportation infrastructure
The company constructs and upgrades transportation and civil infrastructure, including rapid transit, light rail, airport facilities, highways, and station improvements. Referenced projects include Ottawa's Confederation Line, the Highway 7 East Rapidway, Union Station improvements, and Winnipeg International Airport's terminal building.
Institutional construction
Healthcare and research facilities
EllisDon delivers hospitals, healthcare campuses, and research facilities. Its referenced portfolio includes Alberta Children's Hospital, Surrey Memorial Hospital, the William Osler Health Centre partnership, Royal Ottawa Hospital, Oakville-Trafalgar Memorial Hospital, Brampton Civic Hospital, and Sault Area Hospital.
Building construction
Commercial, retail, residential, and hospitality buildings
EllisDon builds commercial offices, shopping centres, residential and hospitality properties, and mixed-use developments. Referenced examples include Yorkdale Shopping Centre, Brentwood Town Centre redevelopment, Hyatt Regency Toronto, and MaRS Convergence Centre Building B.
Sustainable construction · 2016
Sustainable and alternative-energy projects
EllisDon undertakes projects incorporating environmental-performance and alternative-energy objectives. Its Carbon Impact Initiative promoted lower-carbon construction, while Mohawk College's Joyce Centre for Partnership and Innovation served as a pilot and was identified as Ontario's first net-zero institutional building.
Marketing campaigns
- 2016Carbon Impact Initiative Action Plan
Canada
EllisDon worked with industry executives and government leaders to outline strategies for reducing carbon impacts and moving the construction market toward a lower-carbon economy in support of Canada's international climate commitments.
Outcome. Mohawk College's Joyce Centre for Partnership and Innovation was identified as the initiative's first pilot project and as Ontario's first net-zero institutional building.
Brand decisions
2023
Transition chief executive leadershipStrategyBackground
After Geoff Smith's long tenure as president and chief executive officer, EllisDon changed its operating leadership.
Action taken
Kieran Hawe, formerly chief operating officer, became president and CEO, while Geoff Smith continued as executive chair.
Aftermath
The transition preserved Smith's involvement at board level while placing day-to-day executive leadership with Hawe.
2018
Acquire Carillion interests in Ontario hospital projectsM&ABackground
Carillion entered liquidation in the United Kingdom while holding interests in four Ontario hospital projects involving EllisDon.
Action taken
EllisDon acquired Carillion's interests in the Royal Ottawa Hospital, Oakville-Trafalgar Memorial Hospital, Brampton Civic Hospital, and Sault Area Hospital projects.
Aftermath
EllisDon became the sole service provider for the four projects.
2016
Adopt the Carbon Impact Initiative Action PlanStrategyBackground
The company joined industry and government participants seeking to support Canada's climate commitments and shift construction toward lower-carbon practices.
Action taken
EllisDon launched the Carbon Impact Initiative Action Plan and identified a net-zero institutional building as its first pilot project.
Aftermath
Mohawk College's Joyce Centre for Partnership and Innovation became the referenced pilot and was identified as Ontario's first net-zero institutional building.
Sources1 sources
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