Founded in 1907 in Winnipeg under the name Carter-Halls-Aldinger Company Ltd., the Company was one of the true Canadian pioneers following the rail development westward.

The Company's name changed to Commonwealth in 1944. At that time, it was primarily an architectural and commercial contractor.

With the purchase of Western Canada's major mechanical firm, Mathias & Nichol, followed a few years later with the purchase of a Canadian-based electrical contractor, Hume and Rumble, Commonwealth became a full-service, industrial contractor.

For the past 30 years, Commonwealth has followed its North American clients to numerous international projects, particularly in South America and South East Asia.

Owners asked for new forms of project deliveries in the 80's and 90's and Commonwealth responded by offering EPC and BOT capabilities.

In 2007, Commonwealth became a subsidiary of CH2M HILL. Commonwealth is now an integral part of the firm's global energy and industrial business. With the addition of Commonwealth, CH2M HILL has grown to more than 23,000 professionals in 31 countries.

Historical Timeline - Click on a year for details

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