
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 FundingClosedCompensation for wildlife damage to livestock
Grant and FundingTax CreditsClosedBuckhorn Community Improvement Plan
Financial incentives for Buckhorn revitalization
Grant and FundingClosedCNSC Participant Funding Program - RMC SLOWPOKE-2 Licence Renewal
Support for public participation in a licensing hearing
Grant and FundingClosedEmissions Performance Standards program
Ontario EPS program reduces industrial greenhouse gas emissions
Tax CreditsClosedSeniors GIS (Guaranteed Income Supplement) Wastewater Credit
Wastewater credit for eligible seniors
Researchers And FacilitiesPartnering and CollaborationGrant and FundingOpenTeam Grant: Avian Influenza Coordination and Knowledge Mobilization Hub
Supports coordinated avian influenza research across sectors
Grant and FundingClosedEntrepreneurship and Innovation Fund (EIF) — Non-Profits that Serve Underrepresented Communities
Funding for non-profit organizations in York Region- Grant and FundingClosed
2025 Youth Environmental Grant
Supports youth environmental stewardship projects
Grant and FundingLoans and Capital investmentsClosedLead Financial Incentive Program
Funding for lead water service replacement
Grant and FundingExpert AdviceClosedWater Savings for Multi-Residential Properties
Water-saving support for multi-residential properties
Grant and FundingClosedParticipant Funding for Regulatory Oversight Report - Uranium and Nuclear Substance Processing Facilities 2016
Funding for CNSC review participation
Grant and FundingOpenToronto Foundation - Vital Signs Grants
Support for high-impact non-profits and charities in Toronto
Grant and FundingClosedRay Ferris Innovation and Sustainability Grant
Funding for sustainable live theatre innovation
Other SupportGrant and FundingTax CreditsClosedCity of Cornwall Brownfields Community Improvement Plan Programs
Funding for brownfield site rehabilitationEligible Funding- Maximum amount : 15,000 $
- Up to 50% of project cost
Eligible Industries- Construction
- Real estate and rental and leasing
- Administrative and support, waste management and remediation services
Types of eligible projectsEnvironment and ClimateConstruction and Renovation
Other SupportGrant and FundingClosedHuron Clean Water Project (HCWP)
Funding for water quality stewardship projects
Grant and FundingClosedInTO the Ravines Grant
Support for environmentally focused community ravine events
Loans and Capital investmentsOpenVERGE Capital — Startup Fund
Loans for social enterprises in Southwestern Ontario
Other SupportGrant and FundingTax CreditsLoans and Capital investmentsClosedWarwick Township Community Improvement Plan (CIP) Grants
CIP funding for Warwick property improvement projects
Grant and FundingClosedParticipant Funding Program - Regulatory Oversight Report 2015
Funding for nuclear oversight participation
Grant and FundingExpert AdviceClosedi.d.e.a. Fund
Funding and support for high potential businesses focusing on a sustainable and green recovery
Other SupportGrant and FundingClosedParticipant Funding for Canadian Nuclear Laboratories Ltd.'s Near Surface Disposal Facility Project
Support for project review and participation
Grant and FundingClosedSave on Energy Demand Control Kitchen Ventilation (DCKV) Incentive for Food Services
Energy incentives for kitchen ventilation upgrades
Partnering and CollaborationGrant and FundingClosedTrails Connecting Communities Program
Matching funding for Simcoe trail projects
Other SupportResearchers And FacilitiesPartnering and CollaborationGrant and FundingClosedHealthADAPT
Climate adaptation support for the health sectorDiscover how much grant funding is available for your business
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Grant and FundingClosedParticipant Funding Program - Regulatory Oversight Report on the Use of Nuclear Substances in Canada: 2023
Support for reviewing a CNSC oversight report- Grant and FundingLoans and Capital investmentsClosed
Lanark County — General Funding
Funding for Lanark County community projects
Grant and FundingClosedSolar Photovoltaic (PV) incentives
Incentives for behind-the-meter solar PV systems- Grant and FundingOpen
Ajax Mature Tree Conservation Program
Rebates for mature tree maintenance in Ajax
Grant and FundingClosedPhil McNamee Charitable Foundation — Scholarships and Environmental Initiatives
Scholarships and nature-focused community support
Grant and FundingClosedDiscretionary benefit for low-cost energy-conservation measures
Support for low-cost home energy-saving measures
Researchers And FacilitiesPartnering and CollaborationExpert AdviceOpenNRC — Research Aircraft Fleet
Research aircraft support for aeronautical testing
Researchers And FacilitiesPartnering and CollaborationGrant and FundingClosedAgricultural Climate Solutions – Living Labs Program
Supports climate-smart agricultural innovation
Grant and FundingOpenFrench River FoodCycler Pilot Program
Discounted food waste diversion pilot for residents
Other SupportTax CreditsClosedStormwater Incentive Program
Stormwater credits and rebates for property owners
- Grant and FundingClosed
Water Conservation Rebates (Low-Flush Toilet & Rain Barrel Programs)
Rebates for water-saving home upgrades
Grant and FundingClosedParticipant Funding Program - Darlington Waste Management Facility Licence Renewal
Support for public participation in a licence renewal review
Grant and FundingExpert AdviceClosedBackyard Tree Planting Program
Subsidized native trees for sustainable yards
Grant and FundingClosedSpecies Conservation Program
Funding for species at risk conservation in Ontario- Grant and FundingClosed
Strathroy-Caradoc Community Improvement Plan
Financial incentives for property improvement projects
Grant and FundingExpert AdviceClosedRetrofits & Custom Projects
Incentives for energy-saving retrofit projects
Grant and FundingClosedAgri-Tech Innovation Initiative (ATII)
Supports agri-food innovation and energy efficiency
Grant and FundingClosedCity of Orillia Water and Energy Conservation Rebates
Rebates for water-saving home upgrades
Grant and FundingClosedGreat Lakes Freshwater Ecosystem Initiative — Funding for preventing toxic and nuisance algae – Lake Erie Innovation Sub-Stream
Funding for innovative Lake Erie phosphorus reduction projects
Grant and FundingLoans and Capital investmentsClosedHome Energy Loan Program Incentives
Financing for energy-efficient home upgrades
Grant and FundingClosedParticipant Funding Program - Regulatory Oversight Report for Operating Uranium Mines and Mills in Canada: 2019
Funding for comments on uranium mine oversight
Grant and FundingClosedCNSC Participant Funding Program - Algonquins of Ontario IKLUOS Decision
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Grant and FundingClosedParticipant Funding for the Regulatory Oversight Report for Canadian Nuclear Laboratories Sites: 2018
Supports participation in CNSC regulatory proceedings
Grant and FundingClosedKiwanis Environmental Project Grant
Funding for Canadian environmental community projects
Grant and FundingClosedPort Perry Community Improvement Plan (CIP) Incentive Programs
Financial support for targeted redevelopment projectsEligible Funding- Maximum amount : 15,000 $
- Up to 75% of project cost
Eligible Industries- Manufacturing
- Wholesale trade
- Transportation and warehousing
- Professional, scientific and technical services
Types of eligible projectsEnvironment and ClimateConstruction and Renovation Innovation
Tax CreditsClosedTax Rebate Programs – Township of Central Frontenac
Property tax relief for eligible local properties
Grant and FundingClosedParticipant Funding for the Regulatory Oversight Report for Canadian Nuclear Laboratories Sites: 2020
Funding for public review and interventions
Grant and FundingClosedAgri-Food Energy Cost Savings Initiative
Energy efficiency funding for agri-food processors
Other SupportGrant and FundingClosedParticipant Funding Program - BWXT Nuclear Energy Canada Inc. Mid-term Update
Funding for BWXT public meeting participation
Other SupportGrant and FundingTax CreditsClosedCommunity Improvement Plan for Villages – Grant Programs
Municipal funding for village property improvements
Other SupportGrant and FundingClosedParticipant Funding for the Regulatory Oversight Report on the Use of Nuclear Substances in Canada: 2018
Funding for public participation in nuclear oversight review
Grant and FundingOpenNorthern Energy Advantage Program (NEAP)
Rebates for Northern Ontario industrial electricity consumers
Other SupportGrant and FundingOpenSTEP Program
Supports building owners to enhance efficiency and resident well-being
Grant and FundingClosedOperational document related to the Sustainable Canadian Agricultural Partnership: Federal-Provincial AgriInsurance Agreement
Ontario crop insurance and damage compensation support
Other SupportTax CreditsClosedManaged Forest Tax Incentive Program
Property tax relief for managed forest stewardship
Grant and FundingClosedGreat Lakes Freshwater Ecosystem Initiative: Preventing toxic and nuisance algae — Lake Erie Precision Conservation sub-stream
Funding for Lake Erie phosphorus reduction projects
- Other SupportClosed
Green Lane Community Trust Fund
Supports community-benefit projects in Elgin County
Grant and FundingExpert AdviceClosedSavings by Design (New Construction Energy Efficiency Programs)
Energy efficiency support for new construction
Grant and FundingClosedCommunity Environmental Projects Grant Program (CEPGP)
Supports Ottawa non-profits with small-scale environmental initiatives
Other SupportGrant and FundingClosedFoodCycler Pilot Project
Subsidized countertop composting for residents
Grant and FundingClosedIndependent Electricity System Operator (IESO) - Grid Innovation Fund
Funding for innovative electrification projects in Ontario
Grant and FundingClosedSanitary Sewer Rebate Program
Rebate for eligible industrial and commercial water use- Other SupportPartnering and CollaborationGrant and FundingExpert AdviceOpen
Perth County Stewardship Program
Funding for rural conservation projects
Partnering and CollaborationGrant and FundingOpenAnimating Historic Sites
Funding for site-specific arts projects in Toronto
Grant and FundingTax CreditsClosedTownship of Wellesley Community Improvement Plan – Financial Incentive Programs
Financial support for property and building improvementsFind tailored funding for your business
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Grant and FundingClosedEntrepreneurship and Innovation Fund – Stream 1
Support for inclusive entrepreneurship and innovation initiatives
Grant and FundingTax CreditsClosedSouthgate Community Improvement Plan (CIP)
Matching incentives for property revitalization projects
Grant and FundingClosedParticipant Funding Program - Blind River Refinery
Funding for public participation in a licence renewal review- Grant and FundingClosed
Aquatic Reimbursement Pilot Program
Reimbursement for aquatic program fee differences
Grant and FundingClosedTourism Accelerator Grant (TAG) Program
Funding for tourism growth projects in Port Colborne
Grant and FundingClosedNature Smart Climate Readiness Program
Cost-share support for conservation projects
Partnering and CollaborationGrant and FundingClosedCommunity Grant
Funding for local community projects and programs
Grant and FundingClosedParticipant Funding Program - Cameco Port Hope Conversion Facility
Support for participation in a licence renewal review
Grant and FundingClosedXLerate Program - Project Feasibility Study (PFS)
Funding for industrial project feasibility studies- Other SupportGrant and FundingClosed
Low-income Energy Assistance Program (LEAP)
Emergency help for low-income energy bills
Partnering and CollaborationGrant and FundingClosedSustainable New Agri-Food Products & Productivity Program — Productivity Enhancement
Funding for agri-food innovation and productivity
Grant and FundingClosedParticipant Funding Program - BWXT ITG Nuclear Facility Licence
Support for participation in a nuclear licence review

Grant and FundingClosedParticipant Funding for the CNSC Regulatory Oversight Report on the Use of Nuclear Substances in Canada: 2015
Funding for participation in nuclear oversight reviews
Partnering and CollaborationGrant and FundingExpert AdviceClosedParticipant Funding for CNSC Regulatory Oversight Report 2022
Funding for nuclear regulatory participation support- Grant and FundingTax CreditsClosed
Township of Huron-Kinloss Community Improvement Plan
Supports local business and property improvementsEligible Funding- Varies by project
Eligible Industries- Agriculture, forestry, fishing and hunting
- Retail trade
- Real estate and rental and leasing
- Arts, entertainment and recreation
Types of eligible projectsCommercializationEnvironment and ClimateConstruction and Renovation InnovationDigital Transformation
Grant and FundingOpenSite Readiness Program
Funding assistance for industrial site preparation in OntarioEligible Funding- Maximum amount : 25,000 $
- Up to 50% of project cost
Eligible Industries- Manufacturing
- Transportation and warehousing
- Professional, scientific and technical services
- Administrative and support, waste management and remediation services
Types of eligible projectsEnvironment and Climate
Other SupportGrant and FundingClosedBackwater Valve Installation Subsidy
Funding for backwater valve installation
Other SupportGrant and FundingClosedAir Source Heat Pumps
Free home energy upgrades for eligible Ontario households
Grant and FundingClosedParticipant Funding Program - SRC SLOWPOKE-2 Reactor Licence Amendment
Funding for participation in a nuclear licence hearing
Partnering and CollaborationGrant and FundingTax CreditsLoans and Capital investmentsClosedHousing Accelerator Fund (HAF) - St. Catharines Implementation
Housing funding for St. Catharines projects
Grant and FundingClosedMemorial scholarships for Flight 302
Scholarships for Canada-linked studies and causes- Other SupportPartnering and CollaborationGrant and FundingClosed
Kingston Community Climate Action Fund (KCCAF)
Funding for local climate action projects in Kingston