November 26, 2012 - Ever wonder where Ottawa's most powerful people toil away? Well look no further! Maclean's interactive has put together a map of  the 100 most powerful buildings in Ottawa and the Macdonald-Laurier Institute made the list. Click here for the interactive map.

Location: 8 York Street, Ottawa ON K1N 5S6

Who works here:

•Wellington Strategy Group, a government relations firm, is located in this building. Its team includes Rick Moorcroft. Prominent clients: General Dynamics, Cisco Systems
•GJH Strategies
•Sixty Public Affairs Inc.
•Canadian Defence & Foreign Affairs Institute
•Campaign Research
•The Macdonald-Laurier Institute
•Economic Club of Canada
•Grain Growers of Canada

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