Clean energy icon

Ontario is fueling Canada’s cleantech growth, where the major advances in cleantech innovation are taking place. Ontario’s cleantech sector is highly diverse with strengths in energy storage, water technologies, renewable energy, nuclear power generation, hydrogen, greener buildings, industrial biotechnology, smart grids, waste recovery, and environmental engineering services.

A Measurable Difference


in Canada in terms of largest GDP, employment, exports.




cleantech and environmental companies


contribution to GDP


annual exports


of Canadian cleantech exports


Ontario companies on the 2023 global cleantech 100

Testing water with computer device

Ontario Powers Cleantech Innovation

Ontario’s cleantech pioneers are having a global impact, helping organizations and communities around the world implement effective, efficient solutions to complex environmental challenges.

From tackling climate change and urbanization challenges to delivering clean drinking water, Ontario’s cleantech industry is leading the charge towards a sustainable future.

Corporate building icon


water technology companies

Globe icon, showing location pin


Ontario companies on the 2023 global cleantech 100

Taking a water sample from a stream

Ontario Energizes Cleantech with Exceptional Support

Ontario Clean Technology Industry Association (OCTIA) works to promote, foster, and grow Ontario’s clean technology sector.

Ontario Environment Industry Association (ONEIA) represents more than 100 companies, providing environmental products, technologies and services to government and industry.

The Ontario Water Consortium (OWC) provides real world technology demonstration opportunities and encourages collaboration between private companies and academic researchers to accelerate and commercialize innovative water technologies.

Canadian Renewable Energy Association (CanREA) represents organizations and individuals directly involved in the development and application of wind, solar and energy storage technologies, products and services.

Energy Storage Canada is a membership-based organization that advances the energy storage industry in Canada through collaboration, education, policy advocacy and research.

Hydrogen Business Council (HBC) is a community bringing together knowledge and opportunities to realize the benefits of hydrogen energy.

BioIndustrial Innovation Canada (BIC) is a leading business accelerator for sustainable chemistry, creating a successful foundation to support two emerging hybrid chemistry clusters in Ontario.

MaRS Discovery District (MaRS) is the world's largest urban innovation hub in Toronto that supports startups in cleantech and other sectors.

In Good Company

Spotlighting Ontario Cleantech

A row of cars in a factory
Honda to Build Canada’s First Comprehensive Electric Vehicle Supply Chain, Creating Thousands of New Jobs in Ontario

Honda will build an innovative and world-class electric vehicle assembly plant – the first of its kind for Honda Motor Co. Ltd. – as well as a new stand-alone battery manufacturing plant at Honda’s facilities in Alliston, Ontario.

Minister Fedeli visits Ottawa-area manufacturer Beau-Roc
Your Future in Ontario: A Roadmap for Innovation and Collaboration at the Heart of North American Markets

In his feature article, Minister Fedeli sets out how Ontario is working proactively across industry sectors as forward-looking companies position for long-term growth in an economy shaped by technological disruption and the need for environmental sustainability.

Industrial steel production
Ontario, Canada, invests in clean steelmaking technology to support future of auto sector

Ontario, Canada, invests in clean steelmaking technology to support sustainable auto sector.

An intelligent vehicle cockpit
Ontario, Canada, launches flagship initiative to lead development of EV and smart transportation technologies

Ontario launches flagship initiative to lead development of EV and smart transportation technologies.

Electric vehicles connected to charging stations
Ontario, Canada, boosting electric vehicle charging availability

Ontario, Canada, boosting electric vehicle charging availability. Partnership building Electric vehicle chargers at all ONroute locations.

Hybrid badge on a vehicle
Ontario, Canada, secures another game-changing auto investment

Landmark investment from Honda Canada secures thousands of jobs and moves Ontario one step closer to becoming a North American hub for building the cars of the future

Electric vehicle plugged in
Ontario, Canada, secures largest auto investment in province’s history

LG Energy Solution and Stellantis investing in Ontario, Canada, for province’s first large-scale EV battery manufacturing plant.

Stellantis logo on the side of a factory
Major Investments Secure Automotive Manufacturing Futures for Windsor and Brampton

Ontario is quickly becoming a leader in developing and building the car of the future by attracting a $3.6 billion investment from Stellantis in the automaker's Windsor and Brampton plants.

New all-electric BrightDrop commercial vehicle
Ontario, Canada, secures another milestone auto investment

General Motors of Canada’s investment in Oshawa and Ingersoll plants secures Ontario’s place as a North American automotive hub.

The flags of India and Canada side by side
Ontario attracts economic opportunities with Trade Mission to India

The Ontario government has concluded a successful trade mission to India to strengthen relationships with economic partners and attract new investments in key sectors.

A Rendering of the Project Arrow electric vehicle.
First all-Canadian, zero-emission concept vehicle designed in Ontario unveiled at Consumer Electronics Show

Project Arrow makes use of Ontario’s complete end-to-end automotive supply chain and demonstrates the province's world-class automotive capabilities and innovation on the global stage.

Invest Ontario. Here to help.