Disclosed.ca keeps track of 247253 contracts available since 2004 under the Government of Canada Proactive Disclosure.
Open. README in data folder in Github says:
You are welcome and encouraged to use this data to create interesting visualizations and reports. Please mention www.disclosed.ca as the generator of the data.
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Disclosed.ca - Canadian Government Accountability Tools. No author.
Retrieved 12:05, May 21, 2013 (UTC).
the Data Hub