Grant and FundingExpert AdviceOpen
First Nations Community Building Retrofit Program
Funding and support for on-reserve community energy-efficiency retrofits
Updated May 2026
Clean Technology Funding in Ontario: Top Grants and Programs for Businesses
Ontario Clean Tech Grants and Incentives for Businesses
Ontario is one of Canada’s leading provinces for clean technology innovation and adoption. Home to a large base of manufacturers, tech companies, and innovative startups, Ontario has a strong interest in reducing emissions while growing the economy. For business owners and decision-makers in Ontario, there are many funding programs available to support clean tech initiatives – from installing energy-saving equipment in a factory to launching a new cleantech venture. Both the federal and Ontario governments offer grants, loans, and tax credits to help companies invest in sustainable technologies, improve energy efficiency, and adopt low-carbon solutions. Below, we outline key federal and provincial clean tech funding options tailored for Ontario businesses.
437 programs available
- Grant and FundingOpen
XLerate Program
Pay-for-performance funding for large-scale Ontario energy-efficiency projects - Grant and FundingExpert AdviceOpen
Expanded Energy Management Program
Funding to strengthen facility energy management and efficiency initiatives 
Grant and FundingClosedFedNor Aerospace Regional Recovery Initiative
Funding to recover Northern Ontario’s aerospace sector
Grant and FundingOpenFedDev — Funding for southern Ontario
Funding for businesses in southern Ontario by FedDev Ontario.Eligible Funding- From $125,000 to $10,000,000
Eligible Industries- Manufacturing
- Information and cultural industries
- Professional, scientific and technical services
- Health care and social assistance
Types of eligible projectsCommercializationArtificial Intelligence (AI)TechnologyEnvironment and ClimateInnovation
Researchers And FacilitiesPartnering and CollaborationGrant and FundingOpenArtiste en résidence canadien en début de carrière dans le domaine de l'urbanisme
Year-long artist residency exploring key urban issues- Grant and FundingOpen
Regional Tariff Response Initiative (RTRI) — Southern Ontario
Supports southern Ontario businesses impacted by international trade disruptions 
Grant and FundingClosedFood Safety and Growth Initiative
Enhance food safety systems, adopt new technologies, and drive sector growth
Grant and FundingOpenOVIN — Electric Vehicle (EV) — Stream 1
Money for electric vehicle related technologies- Grant and FundingClosed
Grid Innovation Fund
Supports Ontario electrification projects for grid flexibility - Other SupportOpen
Instant Discounts Program
Instant point-of-sale discounts on energy-efficient lighting upgrades - Grant and FundingExpert AdviceOpen
Existing Building Commissioning program
Incentives for commissioning to improve existing building energy performance 
Other SupportPartnering and CollaborationLoans and Capital investmentsOpenVentures at Coralus
Funding and support for women and non-binary entrepreneurs- Grant and FundingArchived
HomeEnergySaver Program
Incentives for installing new heat pumps in eligible Ontario homes 
Grant and FundingOpenHome Renovation Savings Program
Independent Electricity System Operator (IESO), Enbridge Inc., Better Homes BC, Save on Energy (SOE)Rebates for energy-efficient home upgrades in Ontario- Grant and FundingOpen
CoolSaver Program
Free home cooling tune-ups and discounts for eligible residents 
Other SupportPartnering and CollaborationExpert AdviceClosedCFIN — Unpuzzling: Foodtech Ontario
Mentorship program accelerating early-stage foodtech companies in Ontario- Other SupportGrant and FundingExpert AdviceOpen
Energy Affordability Program
Free home energy upgrades for income-eligible Ontario households - Grant and FundingOpen
Remote First Nations Energy-Efficiency Program
Funds remote First Nations energy-efficiency upgrades for homes and businesses - Other SupportGrant and FundingOpen
Peak Perks
Smart thermostat demand response incentives for Ontario electricity customers - Grant and FundingOpen
Small Business Program
Free energy-efficient equipment upgrades for eligible Ontario small businesses 
Other SupportPartnering and CollaborationGrant and FundingExpert AdviceOpenCanada’s Next Sustainable Changemaker Challenge
Supports sustainable startups advancing net-zero and clean technology solutions- Grant and FundingOpen
Energy Performance Program
Pays incentives for verified facility electricity savings over time - Other SupportClosed
Commercial CoolSaver Program
Free commercial HVAC tune-ups and discounts for York Region businesses - Grant and FundingClosed
FedDev Ontario — Funding for organizations that help businesses grow
Funding for organizations supporting business growthEligible Funding- Varies by project
Eligible Industries- Manufacturing
- Information and cultural industries
- Professional, scientific and technical services
- Administrative and support, waste management and remediation services
Types of eligible projectsTechnologyEnvironment and ClimateInnovation Discover how much grant funding is available for your business
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Use our free grant estimator to quickly identify the available grant amounts for which your company may be eligible.
Grant and FundingLoans and Capital investmentsOpenAPCHQ — Affordable Housing Innovation Fund
Association des professionnels de la construction et de l’habitation du Québec (APCHQ), Canada Mortgage and Housing Corporation (CMHC)Supports innovative, scalable affordable housing solutions across Canada- Grant and FundingOpen
Retrofit Program
Financial incentives for energy efficiency upgrades reducing electricity use 
Researchers And FacilitiesGrant and FundingLoans and Capital investmentsArchivedNext Generation of Jobs Fund
Supports green job creation and environmental sustainability in Ontario- Grant and FundingLoans and Capital investmentsArchived
Strategic Jobs Investment Fund (SJIF)
Supports high-value job creation and strategic business investments - Partnering and CollaborationGrant and FundingArchived
Ontario Automotive Investment Strategy (OAIS)
Funds innovative auto manufacturing projects creating or retaining jobs 
Other SupportGrant and FundingOpenNeighbourhood Planting Program
Supports community-led tree planting and stewardship in Toronto- Other SupportGrant and FundingClosed
Save on Energy Retrofit Program – Greenhouse Distributed Energy Resources (DERs) Incentives (Southwest Region)
Incentives for greenhouse energy storage projects 
- Grant and FundingClosed
Urban Forest Enhancement Rebate Program
Rebates for private tree care and planting 
Grant and FundingClosedCorporate Community Investment Fund
Supports community initiatives in STEM, wellbeing, and conservation
Partnering and CollaborationGrant and FundingExpert AdviceClosedParticipant Funding for the CNSC Regulatory Oversight Report on the Use of Nuclear Substances in Canada: 2016
Funding for CNSC public participation
Grant and FundingClosedProduction Insurance – Winter wheat
Protection against winter wheat yield losses
- Other SupportGrant and FundingClosed
Upper Thames River Phosphorus Reduction Program
Funding for farm phosphorus reduction projects - Grant and FundingClosed
Participant Funding Program for the Regulatory Oversight Report for Uranium Mines and Mills in Canada: 2016
Funding for participation in nuclear oversight review - Grant and FundingClosed
Participant funding for the Regulatory Oversight Report for Canadian Nuclear Laboratories Sites: 2021
Supports participation in nuclear regulatory review 
Grant and FundingLoans and Capital investmentsClosedMunicipal Financial Programs
Funding for tourism initiatives in SDG
Grant and FundingClosedBrant Community Foundation - City of Brantford Community Grant Program
Supports community wellbeing projects aligned with local priorities
Other SupportGrant and FundingLoans and Capital investmentsClosedBetter Homes Peterborough
Support for home energy-efficient renovations- Other SupportPartnering and CollaborationGrant and FundingClosed
Urban Forestry Grants & Incentives
Support for private-property tree planting in Toronto 
Other SupportGrant and FundingClosedHome Winterproofing Program (HWP)
Free home energy upgrades for eligible households
Partnering and CollaborationGrant and FundingClosedHARVEST Business Accelerator Funding Opportunity
Funding for Canadian agri-food biotech scale-up
Grant and FundingClosedRockcliffe Park Foundation — General Funding
Funding for Rockcliffe Park community initiatives
Grant and FundingClosedClimate and Equity Lab Grants
Supports community climate equity solutions for vulnerable populationsAccess over 10 000 different funding opportunities
Try the helloDarwin platform today and find programs that fit your needs
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- Grant and FundingClosed
Neighbourhood Climate Action Grants
Funding for resident-led Toronto climate action and education projects - Other SupportGrant and FundingClosed
Community Impact Grant Program
Community funding for inclusive local initiativesEligible Funding- Maximum amount : 15,000 $
- Up to 40% of project cost
Eligible Industries- Educational services
- Health care and social assistance
- Arts, entertainment and recreation
- Accommodation and food services
Types of eligible projectsEnvironment and ClimateConstruction and Renovation Innovation - Grant and FundingClosed
Residential Well Decommissioning Grant
Funding for residential well decommissioning - Grant and FundingClosed
CNSC Participant Funding Program - Regulatory Oversight Report for Waste Management, Storage and Processing Facilities in Canada: 2015
Funding for public participation in nuclear oversight 
Grant and FundingClosed2025 City of Pembroke Private Property Tree Planting Incentive Program
Rebate for private property tree planting- Other SupportGrant and FundingOpen
Retrofit Program Participant Agreement
Funding for business energy-efficiency upgrades - Grant and FundingClosed
Participant Funding Program (PFP) - Curve Lake First Nation Decision
Support for participation in CNSC regulatory processes - Other SupportPartnering and CollaborationGrant and FundingTax CreditsClosed
Huron-Kinloss Downtown Improvement Program
Matched funding for downtown business improvementsEligible Funding- Maximum amount : 5,000 $
- Up to 50% of project cost
Eligible Industries- Agriculture, forestry, fishing and hunting
- Retail trade
- Accommodation and food services
Types of eligible projectsCommercializationEnvironment and ClimateConstruction and Renovation InnovationDigital Transformation - Grant and FundingClosed
Residential Rat Abatement Pilot Program
Residential rat control rebate for property owners 
Grant and FundingClosedSustainable New Agri-Food Products & Productivity Program — Clean Tech in Agri-Food
Federal Economic Development Agency for Northern Ontario (FedNor), Rural Agri-Innovation Network (RAIN)Funding for agri-food innovation in northern Ontario
Other SupportGrant and FundingClosedEnergy affordability programs
Free home energy upgrades for Ontario households
Grant and FundingClosedForks In The Trail Private Foundation — General Funding
Funding for Canadian registered charities
Grant and FundingClosedEnvironment Fund Grant
Supports innovative community environmental management initiatives- Grant and FundingOpen
Toronto — Capacity Buyback Program
Rewards businesses for implementing permanent water-saving measures 
Grant and FundingClosedInvestments in Forest Industry Transformation (IFIT) — Studies projects
Support for forest innovation studies- Loans and Capital investmentsOpen
High-Rise Retrofit Improvement Support Program (Hi-RIS)
Financing for energy-efficient retrofits in older Toronto apartment buildings - Grant and FundingClosed
Indigenous Climate Action Grants
Supports Indigenous-led climate action for Toronto’s urban Indigenous community 
Other SupportResearchers And FacilitiesPartnering and CollaborationExpert AdviceOpenNRC — Canadian Centre for Housing Technology
Real-life testing support for housing innovations
Grant and FundingClosedBrownfields Redevelopment Program - Rehabilitation
Supports redevelopment of contaminated sites for new residential use- Grant and FundingClosed
Regional Economic Growth Through Innovation & Southern Ontario Prosperity Program
Funding for SMEs in Southern Ontario to grow, innovate and competeEligible Funding- Minimum amount : 125,000 $
Eligible Industries- Agriculture, forestry, fishing and hunting
- Manufacturing
- Information and cultural industries
- Professional, scientific and technical services
Types of eligible projectsCommercializationTechnologyEnvironment and ClimateInnovationDigital Transformation - Other SupportGrant and FundingTax CreditsLoans and Capital investmentsClosed
Green Standard Community Improvement Plan (CIP)
Supports high-performance green building projects - Grant and FundingClosed
Toronto Circular Food Innovators Fund
Supports Toronto businesses in implementing reusable foodservice systems Find tailored funding for your business
Discover more grants on the helloDarwin platform
Look through over 10,000 grants, tax credits, loans and more financial aid on the helloDarwin application.
- Grant and FundingClosed
Participant Funding for the Regulatory Oversight Report for Uranium Mines and Mills in Canada: 2018
Support for reviewing a uranium oversight report 
- Partnering and CollaborationGrant and FundingClosed
International Agri-Food Workers Welcoming Communities Initiative
Funding for inclusive agri-food worker communitiesEligible Funding- Maximum amount : 100,000 $
- Up to 75% of project cost
Eligible Industries- Agriculture, forestry, fishing and hunting
- Transportation and warehousing
- Professional, scientific and technical services
- Arts, entertainment and recreation
Types of eligible projectsTechnologyEnvironment and ClimateHuman ResourcesInnovationDigital Transformation - Other SupportGrant and FundingClosed
Participant Funding Program (PFP) - Uranium Mines, Mills, Historic and Decommissioned Sites Review
Supports participation in nuclear review processes 
Other SupportGrant and FundingTax CreditsLoans and Capital investmentsClosedTownship of Warwick Community Improvement Plan (CIP) – Financial Incentive Grant Programs
Funding for community improvement projects
Grant and FundingClosedOntario Wildlife Damage Compensation Program – Livestock Predation Claims (Drummond/North Elmsley)
Compensation for wildlife-caused livestock losses- Partnering and CollaborationGrant and FundingClosed
Health and Safety Water Stream - Municipal Housing Infrastructure Program
Funding for critical water infrastructure projects 
Grant and FundingTax CreditsOpenDiscounts and Rebates (City of Thunder Bay)
Municipal tax and water relief programs- Grant and FundingClosed
Private Storm Sewer Lateral Grant Program
Support for private storm sewer lateral repairs 
Grant and FundingClosedThermal Expansion Tank Assistance Program (Brockton municipal water customers)
Support for residential thermal expansion tanks
Grant and FundingClosedDowntown Port Perry Community Improvement Plan
Funding for downtown property revitalizationEligible Funding- Maximum amount : 10,000 $
- Up to 50% of project cost
Eligible Industries- Retail trade
- Real estate and rental and leasing
- Professional, scientific and technical services
- Arts, entertainment and recreation
Types of eligible projectsEnvironment and ClimateConstruction and Renovation- Grant and FundingTax CreditsLoans and Capital investmentsClosed
CIP and Mural Incentive Programs
Funding for industrial and downtown property improvements - Grant and FundingLoans and Capital investmentsClosed
Community Improvement Funding
Top-up funding for community improvement projects 
Grant and FundingClosedTown of Halton Hills Recreation Financial Assistance
Affordable recreation access support for residents- Grant and FundingClosed
Ontario Wildlife Damage Compensation Program
Compensation for wildlife damage to farm assets 
Other SupportOpenBasement Flooding Protection Subsidy Program
Subsidies for basement flood protection work- Grant and FundingClosed
Municipal Energy Plan Program (MEP)
Funding for municipal energy planning in Ontario - Grant and FundingClosed
Participant Funding Program - Port Hope Project Licence Renewal and Amendment
Funding for public participation in a nuclear hearing - Grant and FundingTax CreditsLoans and Capital investmentsClosed
Local Community Improvement Plan (CIP) Incentives
Financial incentives for commercial property improvements - Grant and FundingExpert AdviceClosed
Home Efficiency Rebate Plus (HER+)
Home energy rebates for Ontario households - Grant and FundingClosed
Green and Beautiful School Grants Program
Funding for school greening and beautification projects - Grant and FundingClosed
Participant Funding Program - Bruce Power Pressure Tubes Application
Participant funding for nuclear hearing participation - Grant and FundingClosed
Participant Funding for Canadian Nuclear Laboratories Ltd.'s Nuclear Power Demonstration Closure Project
Funding for nuclear project participation
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