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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.

134 opportunities available
First Nations Community Building Retrofit Program
Grant and FundingExpert AdviceOpen

First Nations Community Building Retrofit Program

Funding and support for on-reserve community energy-efficiency retrofits
Ontario, Canada
Eligible Funding
  • Maximum amount : 330,000 $
Eligible Industries
  • Utilities
  • Public administration
Types of eligible projects
TechnologyEnvironment and Climate
Ontario, Canada
Expanded Energy Management Program
Grant and FundingExpert AdviceOpen

Expanded Energy Management Program

Funding to strengthen facility energy management and efficiency initiatives
Ontario, Canada
Eligible Funding
  • Maximum amount : 250,000 $
  • Up to 50% of project cost
Eligible Industries
  • Agriculture, forestry, fishing and hunting
  • Mining, quarrying, and oil and gas extraction
  • Utilities
  • Construction
Types of eligible projects
TechnologyEnvironment and ClimateHuman Resources
Ontario, Canada
 XLerate Program
Grant and FundingOpen

XLerate Program

Pay-for-performance funding for large-scale Ontario energy-efficiency projects
Ontario, Canada
Eligible Funding
  • Maximum amount : 15,000,000 $
  • Up to 75% of project cost
Eligible Industries
  • Manufacturing
  • Health care and social assistance
  • Public administration
Types of eligible projects
TechnologyEnvironment and Climate
Ontario, Canada
FedNor Aerospace Regional Recovery Initiative
Grant and FundingClosed

FedNor Aerospace Regional Recovery Initiative

Funding to recover Northern Ontario’s aerospace sector
Ontario, Canada
Eligible Funding
  • Varies by project
Eligible Industries
  • All industries
Types of eligible projects
Environment and Climate
Ontario, Canada
FedDev — Funding for southern Ontario
Grant and FundingOpen

FedDev — Funding for southern Ontario

Funding for businesses in southern Ontario by FedDev Ontario.
Ontario, Canada
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 projects
CommercializationArtificial Intelligence (AI)TechnologyEnvironment and ClimateInnovation
Ontario, Canada
Regional Tariff Response Initiative (RTRI) — Southern Ontario
Grant and FundingOpen

Regional Tariff Response Initiative (RTRI) — Southern Ontario

Supports southern Ontario businesses impacted by international trade disruptions
Ontario, Canada
Eligible Funding
  • From $125,000 to $1,000,000
  • Up to 75% of project cost
Eligible Industries
  • Manufacturing
  • Wholesale trade
  • Retail trade
  • Transportation and warehousing
Types of eligible projects
CommercializationTechnologyEnvironment and ClimateInnovationDigital Transformation
Ontario, Canada
Artiste en résidence canadien en début de carrière dans le domaine de l'urbanisme
Researchers And FacilitiesPartnering and CollaborationGrant and FundingOpen

Artiste en résidence canadien en début de carrière dans le domaine de l'urbanisme

Year-long artist residency exploring key urban issues
Toronto, Ontario, Canada
Eligible Funding
  • Minimum amount : 50,000 $
Eligible Industries
  • Educational services
  • Arts, entertainment and recreation
Types of eligible projects
Environment and ClimateHuman Resources
Toronto, Ontario, Canada
Food Safety and Growth Initiative
Grant and FundingClosed

Food Safety and Growth Initiative

Enhance food safety systems, adopt new technologies, and drive sector growth
Ontario, Canada
Eligible Funding
  • Maximum amount : 75,000 $
  • Up to 50% of project cost
Eligible Industries
  • Agriculture, forestry, fishing and hunting
  • Manufacturing
  • Wholesale trade
  • Transportation and warehousing
Types of eligible projects
TechnologyEnvironment and ClimateHuman ResourcesInnovation
Ontario, Canada
OVIN — Electric Vehicle (EV) — Stream 1
Grant and FundingOpen

OVIN — Electric Vehicle (EV) — Stream 1

Money for electric vehicle related technologies
Ontario, Canada
Home Renovation Savings Program
Grant and FundingOpen

Home Renovation Savings Program

Rebates for energy-efficient home upgrades in Ontario
Ontario, Canada
Eco-Roof Incentive Program
Grant and FundingOpen

Eco-Roof Incentive Program

Supports installation of green and cool roofs in Toronto
Toronto, Ontario, Canada
Small Business Program
Grant and FundingOpen

Small Business Program

Free energy-efficient equipment upgrades for eligible Ontario small businesses
Ontario, Canada
Instant Discounts Program
Other SupportOpen

Instant Discounts Program

Instant point-of-sale discounts on energy-efficient lighting upgrades
Ontario, Canada
Retrofit Program
Grant and FundingOpen

Retrofit Program

Financial incentives for energy efficiency upgrades reducing electricity use
Ontario, Canada
Energy Performance Program
Grant and FundingOpen

Energy Performance Program

Pays incentives for verified facility electricity savings over time
Ontario, Canada
Remote First Nations Energy-Efficiency Program
Grant and FundingOpen

Remote First Nations Energy-Efficiency Program

Funds remote First Nations energy-efficiency upgrades for homes and businesses
Ontario, Canada
Existing Building Commissioning program
Grant and FundingExpert AdviceOpen

Existing Building Commissioning program

Incentives for commissioning to improve existing building energy performance
Ontario, Canada
Ventures at Coralus
Other SupportPartnering and CollaborationLoans and Capital investmentsOpen

Ventures at Coralus

Funding and support for women and non-binary entrepreneurs
Ontario, Canada
APCHQ — Affordable Housing Innovation Fund
Grant and FundingLoans and Capital investmentsOpen

APCHQ — Affordable Housing Innovation Fund

Supports innovative, scalable affordable housing solutions across Canada
Ontario, Canada
CFIN — Unpuzzling: Foodtech Ontario
Other SupportPartnering and CollaborationExpert AdviceClosed

CFIN — Unpuzzling: Foodtech Ontario

Mentorship program accelerating early-stage foodtech companies in Ontario
Ontario, Canada
Canada’s Next Sustainable Changemaker Challenge
Other SupportPartnering and CollaborationGrant and FundingExpert AdviceOpen

Canada’s Next Sustainable Changemaker Challenge

Supports sustainable startups advancing net-zero and clean technology solutions
Toronto, Ontario, Canada
Community Planting and Stewardship Grant
Grant and FundingClosed

Community Planting and Stewardship Grant

Supports tree planting and stewardship initiatives on Toronto private land
Toronto, Ontario, Canada
Neighbourhood Planting Program
Other SupportGrant and FundingOpen

Neighbourhood Planting Program

Supports community-led tree planting and stewardship in Toronto
Toronto, Ontario, Canada
Ontario Junior Exploration Program
Grant and FundingClosed

Ontario Junior Exploration Program

Funding for early mineral exploration in Ontario
Ontario, Canada

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Northern Energy Advantage Program (NEAP)
Grant and FundingOpen

Northern Energy Advantage Program (NEAP)

Rebates for Northern Ontario industrial electricity consumers
Sudbury, Ontario, Canada
Community Environmental Projects Grant Program (CEPGP)
Grant and FundingClosed

Community Environmental Projects Grant Program (CEPGP)

Supports Ottawa non-profits with small-scale environmental initiatives
Ottawa, Ontario, Canada
K
Other SupportPartnering and CollaborationGrant and FundingClosed

Kingston Community Climate Action Fund (KCCAF)

Funding for local climate action projects in Kingston
Kingston, Ontario, Canada
PollinateTO
Grant and FundingClosed

PollinateTO

Funding for community-led pollinator habitat projects in Toronto
Toronto, Ontario, Canada
T
Other SupportClosed

Treatment Benefits Program

Healthcare coverage for eligible Veterans
Toronto — Capacity Buyback Program
Grant and FundingOpen

Toronto — Capacity Buyback Program

Rewards businesses for implementing permanent water-saving measures
Toronto, Ontario, Canada
High-Rise Retrofit Improvement Support Program (Hi-RIS)
Loans and Capital investmentsOpen

High-Rise Retrofit Improvement Support Program (Hi-RIS)

Financing for energy-efficient retrofits in older Toronto apartment buildings
Toronto, Ontario, Canada
Neighbourhood Climate Action Grants
Grant and FundingClosed

Neighbourhood Climate Action Grants

Funding for resident-led Toronto climate action and education projects
Toronto, Ontario, Canada
Brownfields Redevelopment Program - Rehabilitation
Grant and FundingClosed

Brownfields Redevelopment Program - Rehabilitation

Supports redevelopment of contaminated sites for new residential use
Ottawa, Ontario, Canada
City of Waterloo Community Improvement Plan (CIP)
Grant and FundingTax CreditsOpening Soon

City of Waterloo Community Improvement Plan (CIP)

Funding for Uptown Waterloo property improvement projects
Waterloo, Ontario, Canada
Toronto Circular Food Innovators Fund
Grant and FundingClosed

Toronto Circular Food Innovators Fund

Supports Toronto businesses in implementing reusable foodservice systems
Toronto, Ontario, Canada
ROOTS Community Fund
Grant and FundingOpen

ROOTS Community Fund

Support for rural Ontario community initiatives
Ontario, Canada
W
Grant and FundingClosed

Water Capacity Buy-Back Program

Funding for water-saving upgrades and retrofits
Ontario, Canada
Energy Retrofit Loans (ERL)
Loans and Capital investmentsOpen

Energy Retrofit Loans (ERL)

Low-interest financing for energy-efficient building retrofits in Toronto
Toronto, Ontario, Canada
N
Grant and FundingClosed

Nature and climate grant program

Support for habitat restoration and carbon storage
British Columbia, New Brunswick, Ontario, Quebec
Taking Action on Tower Renewal Program (TATR)
Grant and FundingLoans and Capital investmentsClosed

Taking Action on Tower Renewal Program (TATR)

Supports energy-efficient retrofits for Toronto rental apartment buildings
Toronto, Ontario, Canada
Home Efficiency Rebate Plus (HER+)
Grant and FundingExpert AdviceClosed

Home Efficiency Rebate Plus (HER+)

Home energy rebates for Ontario households
Ontario, Canada
Health and Safety Water Stream - Municipal Housing Infrastructure Program
Partnering and CollaborationGrant and FundingClosed

Health and Safety Water Stream - Municipal Housing Infrastructure Program

Funding for critical water infrastructure projects
Ontario, Canada
Town of Halton Hills Recreation Financial Assistance
Grant and FundingClosed

Town of Halton Hills Recreation Financial Assistance

Affordable recreation access support for residents
Ontario, Canada
Forest Biomass Program — Exploring biomass pathways stream
Grant and FundingOpen

Forest Biomass Program — Exploring biomass pathways stream

Ontario's Forest Biomass Program: fostering sustainable economic growth
Ontario, Canada
Youth Climate Action Grants
Grant and FundingClosed

Youth Climate Action Grants

Supports student-led climate action initiatives in Toronto schools
Toronto, Ontario, Canada
Faithful Footprints Grant Program
Grant and FundingExpert AdviceOpen

Faithful Footprints Grant Program

Funding for United Church decarbonization upgrades
Greening Partnership Grant
Grant and FundingClosed

Greening Partnership Grant

Supports tree planting and stewardship on private Toronto land
Toronto, Ontario, Canada
NRC — Hygrothermal performance of buildings testing facilities
Researchers And FacilitiesExpert AdviceOpen

NRC — Hygrothermal performance of buildings testing facilities

Energy efficient building testing in Ottawa
Ottawa, Ontario, Canada

Access over 10 000 different funding opportunities

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Mini Grants
Grant and FundingClosed

Mini Grants

Support for local arts, environment, social, and youth projects
Ontario, Canada
C
Grant and FundingClosed

Charged for Change

Funding for public EV charging infrastructure
Canada
Evans Tree Grants
Grant and FundingOpen

Evans Tree Grants

Supports tree planting projects with environmental benefits
Ontario, Canada
Sustainable Growth and Adoption Program (SGAP)
Grant and FundingOpen

Sustainable Growth and Adoption Program (SGAP)

Supports clean technology adoption and operational sustainability improvements
Ontario, Canada
Forest Biomass Program —  Modernization stream
Grant and FundingOpen

Forest Biomass Program — Modernization stream

Modernizes Ontario's forest sector using underutilized biomass resources
Ontario, Canada
The Accerta Health Access Foundation Grant
Grant and FundingClosed

The Accerta Health Access Foundation Grant

Supports equitable access to healthcare services
Ontario, Canada
OTF — Seed Grant
Grant and FundingClosed

OTF — Seed Grant

Build capacity and resilience for delivering impactful community programs and services
Ontario, Canada
Ontario Creates Industry Development Program
Grant and FundingOpen

Ontario Creates Industry Development Program

Supports Ontario creative industry organizations with strategic development initiatives
Ontario, Canada
C
Other SupportGrant and FundingClosed

Community Impact Grant Program

Community funding for inclusive local initiatives
Mississippi Mills, Ontario, Canada
Growing Canada’s Community Canopies (GCCC) - Urban Forestry Plans and Studies
Other SupportPartnering and CollaborationGrant and FundingClosed

Growing Canada’s Community Canopies (GCCC) - Urban Forestry Plans and Studies

Support for urban forestry planning and studies
VERGE Capital — Startup Fund
Loans and Capital investmentsOpen

VERGE Capital — Startup Fund

Loans for social enterprises in Southwestern Ontario
Ontario, Canada
Participant Funding Program - Bruce Power Pressure Tubes Application
Grant and FundingClosed

Participant Funding Program - Bruce Power Pressure Tubes Application

Participant funding for nuclear hearing participation
Kincardine, Ontario
Home Energy Loan Program
Loans and Capital investmentsClosed

Home Energy Loan Program

Low-interest financing for Toronto homeowners' energy-efficient home upgrades
Toronto, Ontario, Canada
NRC — Research Aircraft Fleet
Researchers And FacilitiesPartnering and CollaborationExpert AdviceOpen

NRC — Research Aircraft Fleet

Research aircraft support for aeronautical testing
Ottawa, Ontario, Canada
Backwater Valve Installation Subsidy
Other SupportGrant and FundingClosed

Backwater Valve Installation Subsidy

Funding for backwater valve installation
Ontario
Entrepreneurship and Innovation Fund (EIF) — Non-Profits that Serve Underrepresented Communities
Grant and FundingClosed

Entrepreneurship and Innovation Fund (EIF) — Non-Profits that Serve Underrepresented Communities

Funding for non-profit organizations in York Region
Ontario, Canada
CNSC Participant Funding Program - Regulatory Oversight Reports 2024
Grant and FundingClosed

CNSC Participant Funding Program - Regulatory Oversight Reports 2024

Funding for participation in nuclear oversight reviews
Ontario
Ontario Transit Investment Fund (OTIF)
Grant and FundingClosed

Ontario Transit Investment Fund (OTIF)

Funding for sustainable transit service expansion
Ontario, Canada
Managed Forest Tax Incentive Program
Other SupportTax CreditsClosed

Managed Forest Tax Incentive Program

Property tax relief for managed forest stewardship
Ontario, Canada
Federal Contaminated Sites Action Plan (FCSAP) - Phase V
Grant and FundingClosed

Federal Contaminated Sites Action Plan (FCSAP) - Phase V

Funding for federal contaminated site remediation
Independent Electricity System Operator (IESO) - Grid Innovation Fund
Grant and FundingClosed

Independent Electricity System Operator (IESO) - Grid Innovation Fund

Supports innovative electrification and demand management projects
Ontario, Canada
Brownfields Redevelopment Program - Development Charge Deferral
Grant and FundingArchived

Brownfields Redevelopment Program - Development Charge Deferral

Supports redevelopment of contaminated sites for residential housing projects
Ottawa, Ontario, Canada
Participant Funding Program - BWXT ITG Nuclear Facility Licence
Grant and FundingClosed

Participant Funding Program - BWXT ITG Nuclear Facility Licence

Support for participation in a nuclear licence review
Manitoba, New Brunswick, Ontario, Saskatchewan
Ontario On-Farm Climate Action Fund (OFCAF)
Ontario, Canada

Find tailored funding for your business

Discover more grants on the helloDarwin platform

Look through over 4,000 grants, tax credits, loans and more financial aid on the helloDarwin application.

Forest Biomass Program — Innovative bioproduct manufacturing stream
Grant and FundingOpen

Forest Biomass Program — Innovative bioproduct manufacturing stream

Supports forest biomass innovation and utilization in Ontario
Ontario, Canada
Heart of Georgian Bay Community Forward Fund
Grant and FundingOpen

Heart of Georgian Bay Community Forward Fund

Supports innovative community projects with measurable regional impact
Ontario, Canada
Brant Community Foundation - City of Brantford Community Grant Program
Grant and FundingClosed

Brant Community Foundation - City of Brantford Community Grant Program

Supports community wellbeing projects aligned with local priorities
Brantford, Ontario, Canada
2025 City of Pembroke Private Property Tree Planting Incentive Program
Grant and FundingClosed

2025 City of Pembroke Private Property Tree Planting Incentive Program

Rebate for private property tree planting
Pembroke, Ontario
Critical Minerals Innovation Fund
Grant and FundingClosed

Critical Minerals Innovation Fund

Funding for innovative critical minerals projects in Ontario
Ontario, Canada
STEP Program
Other SupportGrant and FundingOpen

STEP Program

Supports building owners to enhance efficiency and resident well-being
Toronto, Ontario, Canada
Indigenous Climate Action Grants
Grant and FundingClosed

Indigenous Climate Action Grants

Supports Indigenous-led climate action for Toronto’s urban Indigenous community
Toronto, Ontario, Canada
Caribou Conservation Stewardship Program (CCSP) 2025-26
Grant and FundingClosed

Caribou Conservation Stewardship Program (CCSP) 2025-26

Supports Boreal Caribou conservation projects in Ontario
Ontario, Canada
Participant Funding Program - SRC SLOWPOKE-2 Reactor Licence Amendment
Grant and FundingClosed

Participant Funding Program - SRC SLOWPOKE-2 Reactor Licence Amendment

Funding for participation in a nuclear licence hearing
Ontario, Saskatchewan
InTO the Ravines Grant
Grant and FundingClosed

InTO the Ravines Grant

Support for environmentally focused community ravine events
Toronto, Ontario, Canada
Participant Funding Program - Best Theratronics Processing Facility Licence Renewal
Grant and FundingClosed

Participant Funding Program - Best Theratronics Processing Facility Licence Renewal

Support for public participation in a licence renewal review
Manitoba, Ontario, Saskatchewan
Schoolyard Tree Planting Grant Program
Grant and FundingClosed

Schoolyard Tree Planting Grant Program

Supports tree planting initiatives on Ottawa school properties
Ottawa, Ontario, Canada
Sustainable New Agri-Food Products & Productivity Program — New Products
Grant and FundingClosed

Sustainable New Agri-Food Products & Productivity Program — New Products

Funding for innovative northern Ontario agri-food projects
Ontario, Canada
L
Other SupportGrant and FundingClosed

Low-income Energy Assistance Program (LEAP)

Emergency help for low-income energy bills
Ontario, Canada
Water Efficient Technology (WET) Program
Grant and FundingExpert AdviceClosed

Water Efficient Technology (WET) Program

Support for business water-efficiency improvements
Ontario, Canada
Sustainable New Agri-Food Products & Productivity Program — Clean Tech in Agri-Food
Ontario, Canada
Site Readiness Program
Grant and FundingOpen

Site Readiness Program

Funding assistance for industrial site preparation in Ontario
Ontario, Canada
Agri-Tech Innovation Initiative : Stream 1 – Agri-Tech Innovation
Grant and FundingClosed

Agri-Tech Innovation Initiative : Stream 1 – Agri-Tech Innovation

Cost-shared funding for agri-tech upgrades
Ontario, Canada
F
Grant and FundingClosed

Future Generation Foundation Individual Call for Applications 2025-2026

Funding for First Nations education and cultural learning
EV ChargeON Program
Grant and FundingLoans and Capital investmentsClosed

EV ChargeON Program

Funding for public EV charger installations in Ontario
Ontario, Canada
thriveFORWARD
Grant and FundingLoans and Capital investmentsClosed

thriveFORWARD

Innovation funding for southern Ontario businesses
Ontario, Canada
Emissions Performance Standards program
Grant and FundingClosed

Emissions Performance Standards program

Ontario EPS program reduces industrial greenhouse gas emissions
Ontario, Canada
E
Grant and FundingClosed

Environmental Remediation Grant

Funding for environmental remediation projects
Ontario, Canada