
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.
Grant and FundingClosedMunicipal funding for business and property improvements
Grant and FundingClosedRegional Economic Growth Through Innovation & Southern Ontario Prosperity Program — Not-for-profit organizations
Funding for business-support organizations in Southern OntarioEligible Funding- From $125,000 to $10,000,000
Eligible Industries- Manufacturing
- Information and cultural industries
- Professional, scientific and technical services
- Educational services
Types of eligible projectsCommercializationArtificial Intelligence (AI)TechnologyEnvironment and ClimateInnovationDigital Transformation
Grant and FundingOpenToronto Eco-Roof Incentive Program
Incentives for Toronto eco-roof installations
Grant and FundingOpenForest Biomass Program — Exploring biomass pathways stream
Ontario's Forest Biomass Program: fostering sustainable economic growth
Grant and FundingClosedFee Assistance In Recreation (FAIR)
Affordable recreation support for Cornwall residents
Grant and FundingClosedParticipant Funding Program (PFP) - Regulatory Oversight Report for Uranium and Nuclear Substance Processing Facilities 2021
Supports participation in nuclear regulatory reviews- Grant and FundingClosed
Environmental Remediation Grant
Funding for environmental remediation projects
Grant and FundingLoans and Capital investmentsClosedHousing Incentives Program (CIP)
Funding for housing and main street projects
Partnering and CollaborationGrant and FundingClosedResource Revenue Sharing
Revenue-sharing support for Indigenous communities
Researchers And FacilitiesPartnering and CollaborationGrant and FundingClosedParticipant Funding Program - Bruce Power Licence Amendment
Funding for public participation in a CNSC hearing
Grant and FundingClosedArmstrong Family Foundation — General Funding
Supports community-focused charitable initiatives
Grant and FundingClosedAgri-Tech Innovation Initiative : Stream 3 – Agri-Tech Energy Costs Savings
Cost-shared support for agri-food energy efficiency
Researchers And FacilitiesPartnering and CollaborationGrant and FundingClosedGreat Lakes Protection Initiative
Supports projects protecting and restoring the Great Lakes
Grant and FundingClosedWenda Li Ontario Tree Climbing Championship Bursary
Support for first-time women tree climbing competitors
Grant and FundingExpert AdviceClosedParticipant Funding Program (PFP) - Regulatory Oversight Report 2020
Funding for public participation in nuclear reviews
Grant and FundingClosedDurham Community Foundation Community Grants
Supports community initiatives aligned with local priorities
Grant and FundingClosedEntrepreneurship and Innovation Fund — Small Businesses or Entrepreneurs Developing Agri-tech and Cleantech Solutions
Funding for Agri-tech and cleantech innovators
- Grant and FundingTax CreditsClosed
Township of Centre Wellington Community Improvement Plan (CIP) Incentive Programs
Financial incentives for community improvement projects
Wage Subsidies And InternsClosedIndigenous Youth Work Exchange Program
Summer work experience for Indigenous students
Other SupportGrant and FundingClosedPlumbing Permit Fee Grant Program
Permit fee support for home flood prevention
Grant and FundingClosedParticipant Funding for the Regulatory Oversight Report for Uranium Mines, Mills, Historic and Decommissioned Sites in Canada: 2017
Funding for written submissions on uranium oversight report
- Grant and FundingClosed
Climate Smart Schools Micro Grant Program
Funding for student climate action projects 
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Grant and FundingClosedAdopt a Street Tree / Street Tree Planting Program (Tree Planting Permit Program)
Free street tree planting on municipal property
Other SupportGrant and FundingTax CreditsClosedTax Rebates and Reductions
Property tax relief for eligible owners
Other SupportGrant and FundingClosedDistributor Discount Program: Foodservice
Instant discounts on efficient kitchen equipment
Loans and Capital investmentsClosedLead Water Service Replacement Loan Program
Interest-free help for lead pipe replacement
Grant and FundingTax CreditsOpenCity of Waterloo Community Improvement Plan (CIP)
Funding for Uptown Waterloo property improvement projects
Grant and FundingClosedCNSC Participant Funding Program (PFP)
Funding for public participation in CNSC hearings
Grant and FundingClosedBrian Todd Memorial Community Fund Grants
Brian Todd Memorial Community Fund (BTMCF), Miami and Area Foundation (MAF), The Lawrence Family Foundation (TLFF)Funding for Brighton community projects
Grant and FundingClosedIndigenous Economic Development Fund — Regional Partnership Grants Program
Government of Ontario, Ontario Ministry of Indigenous Affairs and First Nations Economic ReconciliationSupports Indigenous-led mineral development participation and capacity
Grant and FundingClosedOntario Transit Investment Fund (OTIF)
Funding for sustainable transit service expansion
Grant and FundingClosedHousing-Enabling Water Systems Fund (HEWSF)
Funding for housing-enabling water infrastructure
Other SupportClosedDowntown restaurant tote collection program
Approved waste totes for downtown food businesses
Grant and FundingClosedParticipant Funding for the Regulatory Oversight Report for Canadian Nuclear Power Generating Sites: 2018
Funding for public participation in nuclear oversight review
Grant and FundingClosedParticipant funding for Chalk River Laboratories' site licence renewal
Funding for participation in a nuclear licence review
Grant and FundingClosedLow-Income Household Water/Wastewater Relief Application
Water bill relief for low-income Barrie households- Grant and FundingLoans and Capital investmentsClosed
Community Improvement Plan – Incentive Programs
Municipal funding for property and business improvements
Grant and FundingClosedAgricultural Workforce Equity and Diversity Initiative
Support for inclusive agri-food business growthEligible Funding- From $25,000 to $100,000
- Up to 85% of project cost
Eligible Industries- Agriculture, forestry, fishing and hunting
- Manufacturing
- Educational services
- Public administration
Types of eligible projectsCommercializationTechnologyEnvironment and ClimateConstruction and Renovation Human ResourcesInnovationDigital Transformation
Other SupportGrant and FundingTax CreditsClosedCity of Cornwall Brownfields Community Improvement Plan
Financial support for brownfield redevelopment in Cornwall- Grant and FundingClosed
Climate Smart Schools Micro Grants
Micro grants for climate action in Woolwich schools - Grant and FundingExpert AdviceClosed
Resilient Agricultural Landscape Program (RALP) – Marginal Lands Initiative
Funding for agricultural land restoration projects 
Grant and FundingClosedParticipant Funding Program - Pickering Waste Management Facility Licence Renewal
Funding for public participation in a licence renewal review
Researchers And FacilitiesPartnering and CollaborationExpert AdviceOpenNRC — Indoor environment testing research facilities
Indoor environment testing for new technologiesAccess over 10 000 different funding opportunities
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Grant and FundingExpert AdviceClosedOttawa Rural Clean Water Program
Supports rural projects safeguarding Ottawa’s surface and groundwater quality- Grant and FundingLoans and Capital investmentsClosed
Community Improvement Plan (CIP) – Development Incentive Grants and Loans
Funding for downtown and development improvements - Other SupportGrant and FundingExpert AdviceClosed
Wellington Rural Water Quality Program (WRWQP)
Funding for rural water quality projects - Grant and FundingClosed
Water Capacity Buy-Back Program
Funding for water-saving upgrades and retrofits
Grant and FundingClosedSave on Energy Peak Perks Program
Smart thermostat rewards for Ontario participants
Grant and FundingClosedAgri-Tech Innovation Initiative : Stream 1 – Agri-Tech Innovation
Cost-shared funding for agri-tech upgrades
Grant and FundingClosedWege Small Cities Sustainability Best Practices Award
Funding for small-city sustainability initiatives- Grant and FundingClosed
Attainable Rental Housing Program
Funding for attainable rental housing development
Partnering and CollaborationGrant and FundingOpenKnowledge Sharing Event Partnership
Funding for farmer knowledge-sharing events- Grant and FundingClosed
Water Softener Rebate Program
Rebate for replacing residential water softeners
Grant and FundingClosedOntario Junior Exploration Program
Funding for early mineral exploration in Ontario
Other SupportGrant and FundingClosedFree Home Energy Upgrades for Ontario Residents | EnviroCentre Affordability
Free home energy upgrades for eligible Ontario households
Grant and FundingClosedAgri-Tech Innovation Initiative : Stream 2 – Agri-Tech Innovation
Supports agri-food innovation and efficiency
Grant and FundingClosedGreen Freight Program Applicant’s Guide: Stream 1 – Application review and decision process
Funding for fleet fuel-saving upgrades
Grant and FundingClosedParticipant Funding Program (PFP)
Support for participation in CNSC engagement activities
Other SupportPartnering and CollaborationGrant and FundingOpenThe Ontario Trillium Foundation - Grow Grants
Support for existing successful community programs and services
Grant and FundingOpenSustainable Growth and Adoption Program (SGAP)
Supports clean technology adoption and operational sustainability improvements
Grant and FundingOpenClosing SoonForest Biomass Program — Modernization stream
Modernizes Ontario's forest sector using underutilized biomass resources
Other SupportGrant and FundingClosedParticipant Funding Program - Darlington New Nuclear Project
Funding for public participation in a nuclear project review
Grant and FundingClosedSignificant Tree Maintenance Rebate Pilot Program
Rebate for maintaining significant trees
Partnering and CollaborationGrant and FundingExpert AdviceClosedTourism Innovation Lab: Spark Program
Support for sustainable tourism ideas in Bruce County
Other SupportPartnering and CollaborationGrant and FundingOpenFoodCycler Food Waste Diversion
Subsidized home food waste diversion pilot
Grant and FundingClosedParticipant Funding for Regulatory Oversight Report - Uranium and Nuclear Facilities
Funding to review CNSC oversight reportFind tailored funding for your business
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- Grant and FundingTax CreditsClosed
Brownfield Community Improvement Plan
Support for brownfield reinvestment and cleanup - Grant and FundingLoans and Capital investmentsClosed
Community Improvement Plan (CIP) Private Sector Incentive Program
Funding for private property improvements and redevelopment
Grant and FundingClosedCNSC Participant Funding Program - Regulatory Oversight Reports 2024
Funding for participation in nuclear oversight reviews- Grant and FundingLoans and Capital investmentsClosed
Energy Efficiency Retrofit Grant/Loan
Funding for energy-saving building retrofits 

Grant and FundingClosedNature and climate grant program
Support for habitat restoration and carbon storage
Grant and FundingExpert AdviceClosedDufferin Rural Water Quality Program
Funding for rural water quality projects
Researchers And FacilitiesGrant and FundingClosedSave on Energy Process & Systems Upgrades Program
Incentives for capital-intensive energy upgrades
Grant and FundingExpert AdviceLoans and Capital investmentsClosedBetter Homes Lanark
Low-interest home retrofit financing in Lanark County
Grant and FundingOpenClosing SoonForest Biomass Program — Innovative bioproduct manufacturing stream
Supports forest biomass innovation and utilization in Ontario
- Grant and FundingClosed
Convergence 2025 Juried Art Exhibition
Juried exhibition for environment-themed artwork 
Grant and FundingClosedSustainable Neighbourhood Small Grant
Funding for resident-led sustainability projects in Markham
Loans and Capital investmentsClosedHome Energy Loan Program
Low-interest financing for Toronto homeowners' energy-efficient home upgrades
Expert AdviceClosedEnbridge Gas Energy Audits, Studies & Assessments Incentives
Incentives for energy audits and efficiency studies- Grant and FundingClosed
FoodCycler At-Home Organic Waste Diversion Pilot Program
At-home organic waste diversion pilot
Grant and FundingClosedParticipant Funding for Cluff Lake Project Decommissioning Licence Renewal
Support for participation in a licence renewal hearing
Grant and FundingLoans and Capital investmentsClosedEV ChargeON Program
Funding for public EV charger installations in Ontario
Loans and Capital investmentsArchivedAdvanced Manufacturing Investment Strategy (AMIS)
Supports Ontario manufacturers investing in advanced technology and innovation
Grant and FundingClosedCanadian TREE Fund - Multiple Grant Programs
Funding for Canadian arboriculture projects
Grant and FundingClosedProduction Insurance – Soybeans
Protects soybean yields against production losses
Eligible Funding- Maximum amount : 15,000 $
Eligible Industries- Administrative and support, waste management and remediation services
- Educational services
- Arts, entertainment and recreation
- Other services (except public administration)
Types of eligible projectsEnvironment and Climate