They began to build a solid reputation within the consulting engineering industry that started bringing projects from Western Canada.

After conducting a careful analysis of the building services market, the Directors decided to open offices in Edmonton and Calgary in Alberta and Vancouver in British Columbia.

In the late 1980s, a new office was opened in Toronto, marking the end of a round trip journey James Keen retired in 1980 and Tom Johnston was appointed president.

This quickly led to the formation of Keengreen - a division of Keen that focused exclusively on Green design.

In May 2000, Keen expanded its North American operations by opening an office in Seattle, Washington, and later on in San Francisco.