Ontario Sustainable Energy Association

Green Energy DoorsTM 2021

Open call for Ontario’s Top 10 Cleantech Companies


In conjunction with OSEA’s 11th annual Green Energy Doors OpenTM OSEA wants to recognize and celebrate Ontario’s Top 10 Cleantech Companies.

Please tell us in 500 words or less why you should be considered a Top 10 Cleantech Company, including relevant media links that support your candidacy.

OSEA 2021 Top 10 Cleantech Categories

Please identify which category or categories you want to be considered for:

  • Carbon Capture & Storage
  • Energy Efficiency & Grid Firming
  • Carbon Free Technologies
  • Energy Storage
  • Green Buildings
  • Renewable Energy
  • Smart Buildings
  • Sustainable Finance
  • Transportation
  • Waste to Energy 

The technology winners in each category will be selected by a qualified panel led by OSEA based on the following criteria:

  1. a)“Readiness” for deployment and scale up (beyond “proof of concept” stage)
  2. b)Significantly improves the existing environment (e.g. reduces COand other emissions reduces waste, and/or vastly improves the move to a circular economy)
  3. c)Potentially considered “disruptive” (having a possible positive impact on other industries)

Please submit your responses to Dan Goldberger, Chair, Ontario Sustainable Energy Associatio: dan@ontario-sea.org by 12:00 noon ET on Friday, October 15, 2021 to be considered for this competition (Extended Date).

The Top 10 Cleantech Companies will be notified by email by Wednesday, October 20, 2021.

The Top 10 Cleantech Companies asked to provide a 5-minute presentation at OSEA’s Green Energy Doors OpenTM 2021  October 27th, 2021 at 12:00-2:00 pm ET.

Runner-Ups will also be announced for each of the ten categories.

Note: While seeking Ontario based companies, a winner may be selected from out of Province.

We look forward to receiving your company’s submission!

Dan Goldberger, Chair

Ontario Sustainable Energy Association


(416) 346-7715