Environment & Sustainability Tenders & Grants

Discover procurement opportunities and grant funding for sustainability, climate and environment. Renewable energy, water and sanitation, waste management, climate adaptation, biodiversity and nature-based solutions — curated for green contractors, climate consultancies, ESG-focused firms and environmental NGOs.

15,890 open opportunities in this category

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Who this is for

Renewable energy EPCs, water engineering firms, climate advisory, carbon verification bodies, environmental NGOs, ESG consultancies.

Top Funders

Major sources of procurement and grant funding in this category:

Green Climate Fund

The largest dedicated climate finance pool, funding mitigation and adaptation projects in developing countries.

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World Bank

Climate Change Action Plan, PROBLUE, energy transition and water global practice lending.

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GEF

Global Environment Facility — biodiversity, climate change, chemicals and waste.

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EU Green Deal

Horizon Europe, Innovation Fund, Modernisation Fund and the Circular Economy Action Plan.

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AfDB

African Development Bank — Sustainable Energy Fund for Africa, Desert to Power, African Water Facility.

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USAID

Climate and water security programming, resilience funding.

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Get Environment & Sustainability Alerts

A weekly digest of only environment & sustainability tenders and grants for where you do business.

Environment & Sustainability Opportunities

Discover procurement opportunities and grant funding for sustainability, climate and environment. Renewable energy, water and sanitation, waste management, climate adaptation, biodiversity and nature-based solutions — curated for green contractors, climate consultancies, ESG-focused firms and environmental NGOs.

Here is a selection of recent tenders and grants. Register for free to view all environment & sustainability opportunities.

Environment & Sustainability Tenders

Corrosion protection services on an 'as and when required' basis for eleven (11) Eskom peaking sites for a period of 5 years (gourikwa & ankerlig gas turbine, gariep, vanderkloof & ncora hydropower, ingula, drakensberg & palmiet pumped storage schemes, sere wind farm, port rex and accacia aeroderivative)

TENDER Open

South Africa, National 23 Oct 2026 (Closes in 24 days) E3599GXPOU

Corrosion protection services on an 'as and when required' basis for eleven (11) Eskom peaking sites for a period of 5 years (gourikwa & ankerlig gas turbine, gariep, vanderkloof & ncora hydropower, ingula, drakensberg & palmiet pumped storage schemes, sere wind farm, port rex and accacia aeroderivative)

Procurement of independent proactive assurance services for Private Sector Participation processes relating to the Richards Bay Gas-to-Power Project and Eskom Green’s renewable energy pipeline, including assurance over RFQ/RFP documentation, evaluation processes, governance submissions, negotiation processes, award recommendations and compliance with applicable procurement governance requirements.

TENDER Open

South Africa, Gauteng 13 Oct 2026 (Closes in 14 days) E3570CXMWP

Description of Procurement Eskom requires independent proactive assurance services for Private Sector Participation procurement processes relating to the Richards Bay Gas-to-Power Project and Eskom Green’s renewable energy pipeline, including the 2 GW priority projects and Tubatse Pumped Storage Project. The service provider will provide real-time procurement, governance, compliance, risk and pro

Appointment of a service provider for helicopter services for annual aerial census: Department of economic development, environment and tourism for a period of three (3) years

TENDER Open

South Africa, Limpopo 14 Oct 2026 (Closes in 15 days) EDET329/2026

Appointment of a service provider for helicopter services for annual aerial census: Department of economic development, environment and tourism for a period of three (3) years

Appointment of a service provider to do annual veld condition assessments on state owned mature reserves for the period of four (4) years 01 April 2028 – 31 March 2032 (three seasons)

TENDER Open

South Africa, Limpopo 14 Oct 2026 (Closes in 15 days) EDET330/2026

Appointment of a service provider to do annual veld condition assessments on state owned mature reserves for the period of four (4) years 01 April 2028 – 31 March 2032 (three seasons)

Bid SAWS-453/26

TENDER Open

South Africa, Western Cape 12 Oct 2026 (Closes in 13 days) 170763

Supply and delivery of Hydrogen Generators with onboard and handheld hydrogen leak detection devices and sensors, Reverse Osmosis and Water De-Ionizer Systems, and Water Filtration Systems.

Request to appoint a service provider (sp) to provide plumbing training and trade test.

QUOTATION Open

South Africa, Western Cape 29 Sep 2026 (Closes today) RFQ0001286

Request to appoint a service provider (sp) to provide plumbing training and trade test.

Request to appoint a service provider (sp) to provide repairs and maintenance services of vehicle in Cape Town, as per attached annexure a.

QUOTATION Open

South Africa, Western Cape 29 Sep 2026 (Closes today) RFQ0001285

Request to appoint a service provider (sp) to provide repairs and maintenance services of vehicle in Cape Town, as per attached annexure a.

Request to appoint a service provider (sp) to supply and deliver safety protective clothing as per attached annexure a.

QUOTATION Open

South Africa, Western Cape 29 Sep 2026 (Closes today) RFQ0001284

Request to appoint a service provider (sp) to supply and deliver safety protective clothing as per attached annexure a.

Design, supply, installation, and commissioning capability of the total rooftop PV solution for Single phase customers from 20 – 60 Amps

TENDER Open

South Africa, Gauteng 6 Oct 2026 (Closes in 6 days) SAPVIA-109223

Dear Members, Please see below tender opportunity for your attention: Design, supply, installation, and commissioning capability of the total rooftop PV solution for Single phase customers from 20 – 60 Amps Issuing Body: Eskom Ideal Bidder: An established electrical engineering or renewable energy company with proven experience in designing, supplying, installing, and commissioning rooftop PV s...

TPL/2026/09/0613/11281/RFP

TENDER Open

South Africa, National 16 Oct 2026 (Closes in 17 days) 170704

Professional services for engineering consultant in strategic planning and project support for Transnet pipelines’ renewable energy rollout for a period of 3 years

Supply, delivery and installation of 20m solar highmast floodligt with some local content items (includes: Concrete casting, formwork, earthworks, assembling, bolts, plates, plugs, wiring and all associated works-CIDB contractor (CIDB grading 2EP)

QUOTATION Open

South Africa, Eastern Cape 2 Oct 2026 (Closes in 3 days) WTE1048CE

Supply, delivery and installation of 20m solar highmast floodligt with some local content items (includes: Concrete casting, formwork, earthworks, assembling, bolts, plates, plugs, wiring and all associated works-CIDB contractor (CIDB grading 2EP)

Supply, delivery and installation of New Hydrogen H2 Production Plant for a period of 11 months at Kendal Power Station.

TENDER Open

South Africa, Mpumalanga 1 Oct 2026 (Closes in 2 days) E3529GXMPKEN

Supply, delivery and installation of New Hydrogen H2 Production Plant for a period of 11 months at Kendal Power Station.

Supply, delivery and installation of New Hydrogen H2 Production Plant for a period of 11 months at Kendal Power Station.

TENDER Open

South Africa, Mpumalanga 1 Oct 2026 (Closes in 2 days) E3529GXMPKEN

Supply, delivery and installation of New Hydrogen H2 Production Plant for a period of 11 months at Kendal Power Station.

Term tender for the collection, loading, transport and disposal of animal carcasses and associated emergency response services

TENDER Open

South Africa, Western Cape 12 Oct 2026 (Closes in 13 days) CCT-329081

Term tender for the collection, loading, transport and disposal of animal carcasses and associated emergency response services URBAN WASTE MANAGEMENT / Waste Services

Clearance, collection, transport and safe disposal/incineration of illegally dumped medical/ hazardous/ toxic waste

TENDER Open

South Africa, Western Cape 13 Oct 2026 (Closes in 14 days) CCT-329082

Clearance, collection, transport and safe disposal/incineration of illegally dumped medical/ hazardous/ toxic waste URBAN WASTE MANAGEMENT / Waste Services

Cleaning of windows and ledges at city of cape town facilities

RFI Open

South Africa, Western Cape 2 Oct 2026 (Closes in 3 days) CCT-329034

Cleaning of windows and ledges at city of cape town facilities CORPORATE SERVICES / Facilities Management

Supply and deliver small plant equipment

RFI Open

South Africa, Western Cape 1 Oct 2026 (Closes in 2 days) CCT-329032

Supply and deliver small plant equipment CORPORATE SERVICES / Fleet Management

Off-Grid Solar PV Electrification & Maintenance Contract for Maqhashiya Village

TENDER Open

South Africa, KwaZulu-Natal 30 Sep 2026 (Closes today) SAPVIA-109138

Dear Members, Please see below tender opportunity for your attention: Off-Grid Solar PV Electrification & Maintenance Contract for Maqhashiya Village Issuing Body: Eskom Ideal Bidder: An experienced electrical contractor or renewable energy company with proven expertise in off-grid solar PV installations, particularly in rural settings. The bidder must have the capacity for both installation an...

Cancellation Letter for Request for Proposal for Eskom renewable energy offtake commissioned in phases – 291MW solar PV capacity

TENDER Open

South Africa, Gauteng 30 Oct 2026 (Closes in 31 days) E1671DXMWPCancel

Cancellation Letter for Request for Proposal for Eskom renewable energy offtake commissioned in phases – 291MW solar PV capacity

Term tender for the supply and delivery of maintenance, repair, upgrade and refurbishment services for high voltage air insulated switchgear (ais).

TENDER Open

South Africa, Western Cape 20 Oct 2026 (Closes in 21 days) CCT-328999

Term tender for the supply and delivery of maintenance, repair, upgrade and refurbishment services for high voltage air insulated switchgear (ais). ENERGY / Electricity Generation and Distribution

TNPA/2026/08/0002/114628/RFP

RFP Open

South Africa, Boegoebaai 2 Oct 2026 (Closes in 3 days)

Provision of professional services to Strategic Marine Fauna Feasibility Study for the proposed Boegoebaai Port Development Project for a period of Six (6) months.

RFP number 09/2026 : Appointment of a service provider to design, supply, deliver , install and commission various electrical works and infrastructure in the park

TENDER Open

South Africa, KwaZulu-Natal 9 Oct 2026 (Closes in 10 days) 09-2026

RFP number 09/2026 : Appointment of a service provider to design, supply, deliver , install and commission various electrical works and infrastructure in the park

SBM 33/25/26

TENDER Open

South Africa, Western Cape 9 Oct 2026 (Closes in 10 days) 169410

Appointment of a service provider for monitoring, quality control and process advisory services at wastewater treatment plants and water distribution network in the Saldanha bay region for the period ending 30 June 2029.

Provision of Cleaning Services for Durban Heights Waterworks and UUW Durban Heights Training Centre for a Period of 5 Years

TENDER Open

South Africa, KwaZulu-Natal 8 Oct 2026 (Closes in 9 days) 2025/009(B)

Provision of Cleaning Services for Durban Heights Waterworks and UUW Durban Heights Training Centre for a Period of 5 Years

CoGTA (T)04/2026

TENDER Open

South Africa, National 30 Sep 2026 (Closes tomorrow) 169405

Cogta T04/2026: Appointment of a service provider to conduct skills audit for community work programme (cwp) participants and site staff over a period of twelve (12) months

Environment & Sustainability Grants

Explore the Coast Overnight

Open Disadvantaged Communities; Environment & Water; Parks & Recreation US

United States

The Explore the Coast Overnight Program aims to create more opportunities for all Californians to stay overnight at the coast through the expansion or construction of hotels, motels, hostels, campgrounds, RV campgrounds, cabins, yurts, dorm rooms, and others. The Conservancy’s Explore the Coast Overnight Program was created to expand more opportunities for all Californians to stay overnight at the coast, particularly individuals and youth from low and middle-income households, communities of color, at-risk or underserved populations, and others that face barriers to accessing the coast. The goals of the Explore the Coast Overnight Program include: Helping improve existing, and develop new lower-cost coastal accommodations; Ensuring that new or renovated coastal accommodation projects ar...

Replacing, Removing, or Upgrading Underground Storage Tanks Loan

Open Environment & Water US

United States

RUST loans may be used to finance up to 100 percent of the costs necessary to upgrade, remove or replace project tanks, including corrective actions, to meet applicable local state, or federal standards, including, but not limited to, any design, construction, monitoring, operation, or maintenance requirements adopted pursuant to Health and Safety Code sections 25284.1, 25292.05, 25292.4, or 41954. Replacing, Removing, or Upgrading Underground Storage Tanks (RUST) loans are available to assist small business underground storage tank (UST) owners and operators in financing up to 100 percent of the costs necessary to upgrade, remove, or replace project tanks, including corrective actions, to meet applicable local, state, or federal standards, including, but not limited to, any design, con...

Replacing, Removing, or Upgrading Underground Storage Tanks Grant

Open Environment & Water US

United States

RUST grants may be used to finance up to 100 percent of the costs necessary to upgrade, remove, or replace UST project tanks to comply with the requirements of Health and Safety Code sections 25284.1, 25292.05, 25292.4, 25292.5, or 41954. Replacing, Removing, or Upgrading Underground Storage Tanks (RUST) grants are available to assist small business underground storage tank (UST) owners and operators in financing up to 100 percent of the costs necessary to upgrade, remove, or replace project tanks to comply with the requirements of Health and Safety Code section 25284.1, 25292.05, 25292.4, 25292.5, or 41954. Please note that removal-only projects are now eligible for RUST grants. Grants are available for between $3,000 and $70,000 to eligible UST owners/operators. An additional $140,000...

The Safe and Affordable Funding for Equity and Resilience Program (SAFER)

Open Disadvantaged Communities; Environment & Water US

United States

is a set of tools, funding sources, and regulatory authorities designed to ensure that one million Californians who currently lack safe drinking water receive safe & affordable drinking water as quickly as possible. The SAFER Program’s goal is to provide safe drinking water in every California community, for every Californian. In 2019, Senate Bill 200 (SB200) established the Safe and Affordable Drinking Water (SADW) Fund to address funding gaps and provide solutions to water systems, especially those serving DACs, to address both their short- and long-term drinking water needs. The SADW Fund is one of several funds that are part of the larger SAFER Program. Complementary funding sources administered by the State Water Board’s Division of Financial Assistance for drinking water projects ...

Clean Water State Revolving Fund (CWSRF) Program

Open Environment & Water US

United States

Under federal and state law the primary purpose of the CWSRF Program is to provide financing for eligible projects to restore and maintain water quality in the state. The SWRCB also seeks to reduce the effects of climate change and to promote sustainable water resources for future generations. These objectives must be cost-effective and complement both the federal and state criteria and the policy goals of the State Water Board. Eligible Applicants: Any city, town, district, or other public body created under state law, including state agencies A Native American tribal government or an authorized Native American tribal organization having jurisdiction over disposal of sewage, industrial wastes or other waste Any designated and approved management agency under Section 208 of the Clean Wa...

Emergency Drinking Water / Cleanup & Abatement Account Programs

Open Disadvantaged Communities; Environment & Water US

United States

The Cleanup and Abatement Account (CAA) funds may be utilized to fund: (1) projects that clean up and/or abate the effects of a waste on waters of the State, or (2) projects that address urgent drinking water needs. The Cleanup and Abatement Account (CAA) was created by Water Code Sections 13440-13443 to provide grants for the cleanup or abatement of a condition of pollution when there are no viable responsible parties available to undertake the work. Water code section 13442 authorizes the State Water Board to utilize CAA funds to address an urgent drinking water need. This includes needs due to drought, contamination, or other eligible emergencies. The CAA is funded by various monies including those: appropriated by the Legislature; collected as part of criminal penalties or civil pro...

Drinking Water State Revolving Fund (DWSRF) Construction

Open Disadvantaged Communities; Environment & Water US

United States $2,000,000 - $10,000,000

The Drinking Water State Revolving Fund (DWRSF) program assists public water systems in financing the cost of drinking water infrastructure projects needed to achieve or maintain compliance with Safe Drinking Water Act (SDWA) requirements and support to human right to water. The Division of Financial Assistant (DFA), State Water Board manages the DWSRF program and prioritizes financing for projects that address the most serious human health risks, are necessary to comply with SDWA, and assist public water systems (PWS) most in need on per household basis. Periodically funding programs that help provide clean and safe water are used in combination with the DWSRF program. Eligible community water systems (CWS) currently may receive principle forgiveness (PF)/grant from $2,000,000 up to 10...

Drinking Water State Revolving Fund (DWSRF) Planning

Open Disadvantaged Communities; Environment & Water US

United States $250,000 - $500,000

The Drinking Water State Revolving Fund (DWRSF) program assists public water systems in financing the cost of drinking water infrastructure projects needed to achieve or maintain compliance with Safe Drinking Water Act (SDWA) requirements and support to human right to water. The Division of Financial Assistant (DFA), State Water Board manages the DWSRF program and prioritizes financing for projects that address the most serious human health risks, are necessary to comply with SDWA, and assist public water systems (PWS) most in need on per household basis. Periodically funding programs that help provide clean and safe water are used in combination with the DWSRF program. Eligible small community water systems (SCWS) serving a small disadvantage community (DAC) and small severely disadvan...

PR - Wildlife Restoration (FY27)

Open US

United States $10,000 - $10,000,000

Awarding agency: Department Of Natural Resources. Application period: 01/01/2026 - No end date. Award range: $10000 - $10000000.

Driving a Cleaner Illinois - Volkswagen

Open US 26-1697-09

United States $100,000 - $18,000,000

Awarding agency: Environmental Protection. Type of assistance: Grant. Application period: General announcement open for a period of time with no specific due dates for applications.. Award range: $100000 - $18000000. Estimated total programme funding: $18000000.00. Source of funding: State. Cost sharing or matching: Yes. Application link: Please copy the entire address below and paste it into the browser... https://epa.illinois.gov/topics/air-quality/driving-a-cleaner-illinois.html

Line Item - Capital Grants FY26- IDNR

Open US

United States

Awarding agency: Department Of Natural Resources. Application period: 07/01/2025 - No end date. Award range: $0 - $0.

Natural and Working Lands+ Climate

Open US

United States

Awarding agency: Department Of Natural Resources. Application period: 05/09/2025 - No end date. Award range: $0 - $0.

DJ - Sport Fish Restoration - Fisheries, Boat Access (FY26)

Open US

United States $10,000 - $8,000,000

Awarding agency: Department Of Natural Resources. Application period: 01/01/2025 - No end date. Award range: $10000 - $8000000.

Unsewered Communities Planning Grant Program - Round 3

Open US

United States Up to $30,000

Awarding agency: Illinois Environmental Protection Agency. Application period: 12/10/2024 - No end date. Award range: $0 - $30000.

Energy Efficiency Assessment Program

Open US 24-3369-01

United States $5,000 - $25,000

Awarding agency: Environmental Protection. Type of assistance: Grant. Application period: General announcement open for a period of time with no specific due dates for applications.. Award range: $5000 - $25000. Estimated total programme funding: $500000.00. Source of funding: Federal. Cost sharing or matching: No.

Lead Service Line Inventory Grant Program

Open US 24-3017-04

United States $20,000 - $50,000

Awarding agency: Environmental Protection. Type of assistance: Grant. Application period: General announcement open for a period of time with no specific due dates for applications.. Award range: $20000 - $50000. Estimated total programme funding: $6570000.00. Source of funding: Federal. Cost sharing or matching: No. Application link: Please copy the entire address below and paste it into the browser... https://epa.illinois.gov/topics/drinking-water/public-water-users/lsli-grant-opportunity.html

PR - Wildlife Restoration (FY25)

Open US

United States $10,000 - $10,000,000

Awarding agency: Department Of Natural Resources. Application period: 01/01/2024 - No end date. Award range: $10000 - $10000000.

Endangered Species (FY24)

Open US

United States $1,000 - $93,593

Awarding agency: Department Of Natural Resources. Application period: 12/01/2023 - No end date. Award range: $1000 - $93593.

Energy Efficiency Trust Fund Grant Program

Open US 24-2722-01

United States $25,000 - $500,000

Awarding agency: Environmental Protection. Type of assistance: Grant. Application period: General announcement open for a period of time with no specific due dates for applications.. Award range: $25000 - $500000. Estimated total programme funding: $5000000.00. Source of funding: State. Cost sharing or matching: Yes. Application link: Please copy the entire address below and paste it into the browser... https://epa.illinois.gov/topics/energy/energy-efficiency/energy-efficiency-trust-fund-grant

PR - Wildlife Restoration (FY24)

Open US

United States $10,000 - $10,000,000

Awarding agency: Department Of Natural Resources. Application period: 03/08/2023 - No end date. Award range: $10000 - $10000000.

DJ - Sport Fish Restoration - Fisheries, Boat Access (FY24)

Open US

United States $10,000 - $8,000,000

Awarding agency: Department Of Natural Resources. Application period: 03/08/2023 - No end date. Award range: $10000 - $8000000.

Small Grants Program

Open Agriculture; Disadvantaged Communities; Environment & Water; Housing, Community and Economic Develop US

United States

The Program provides funding for eligible entities to complete projects under $100,000 that make transformative investments in the Delta’s social, economic, scientific, and physical infrastructure. Projects may support community needs, advance scientific research that informs resource management, or enhance tourism and public understanding of Delta places through events, programs, materials, or facilities. The Grant has three focus areas: Nature Based Solutions (NBS), community enhancement and access, and ecosystem restoration. NBS goals are to support restoration, conservation, and 3 climate projects that will stop or reverse ongoing subsidence and reduce greenhouse gas emissions occurring on highly organic soils. NBS projects provide technical assistance and financial support for crop...

Division of Boating and Waterways 2026 Boating Infrastructure Grant

Open Environment & Water; Parks & Recreation US

United States $300,000 - $1,500,000 29 Sep 2026 (1 day left)

Provides funding to construct or improve infrastructure used by transient recreational vessels 26 feet or more in length. The Boating Infrastructure Grant program is designed to provide infrastructure and services for recreational boats 26 feet or more in length. Goals of the program include: 1. enhance access to recreational, historic, cultural and scenic resources; 2. strengthen community ties to the water’s edge and economic benefits; 3. promote public/private partnerships and entrepreneurial opportunities; 4. provide continuity of public access to the shore; and 5. promote awareness of transient boating opportunities.

H5 Bird Flu Wildlife Preparedness Grant Program

Open Environment, energy & climate AU 61867

Australia Up to $500 30 Sep 2026 (2 days left)

The H5 Bird Flu Wildlife Preparedness Grant Program provides authorised wildlife shelter operators and authorised foster carers funding to improve preparedness in response to H5N1 avian influenza (H5 bird flu).

2025 Tribal Multifamily Finance Super Notice of Funding Availability

Open Housing, Community and Economic Development US

United States 30 Sep 2026 (2 days left)

The Department announces the availability of approximately $50 million in funds available through this first round of the Tribal Multifamily Finance Super Notice of Funding Availability (Tribal MFSN). This NOFA makes funds more easily accessible to Tribes and Tribal Entities and provides flexible options to address the unique needs of Indian communities to achieve better outcomes in health, climate, and household stability. Rather than utilizing a set-aside within the standard MFSN Program, this NOFA operates independently and is tailored to meet the specific affordable housing needs of California Tribes. Funds offered under this NOFA and the criteria specified herein are available solely and exclusively to eligible Tribal Entities. This NOFA provides forgivable loans to assist with the...

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Frequently Asked Questions

Who buys green tenders?

State utilities, national energy and water regulators, multilateral development banks, climate funds, and municipalities. Increasingly, private off-takers procure via public PPA frameworks.

How do grants differ from tenders in this space?

Grants typically fund feasibility, pilots, capacity building and TA — issued by climate funds, bilateral agencies and foundations. Tenders fund construction, equipment supply and O&M.

What compliance do green tenders require?

IFC Performance Standards, environmental and social safeguards, increasingly EU Taxonomy alignment for European-funded work, and local-content commitments.

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