A challenge-based process that connects Canadian clean technology companies with major corporation seeking clean technology innovations. CanadaCleantech is hosting a set of webinars, each one featuring a different major global corporation seeking solutions to energy, water and/or waste challenges within their businesses. Webinars are followed by a proposals submission period. Proposals are reviewed by the major corporations and they pre-select potentially viable solutions for a pitch session. Corporations can choose to work with Canadian clean technology companies directly following the pitch sessions. The first challenges webinars are for Marriott International (October 25, 2018) and Boston Beer Company (November 1, 2018) , both of which are asking for water solutions. See website for more details on the challenges and how to register for the webinars.