Environment & Sustainability Tenders in the United States

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.

519 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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Environment & Sustainability Opportunities

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

Environment & Sustainability Tenders

On-Call Heating, Ventilation, and Air Conditioning Services for the Vehicle Inspection Program

TENDER Open

United States, Oregon 29 Oct 2026 (Closes in 31 days) S-34000-00017370

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Supply and Installation of Solar Mini-Grids and Communication Infrastructure for

TENDER Open

United States, FIJI 26 Oct 2026 (Closes in 27 days) UNDP-FJI-00824

Introduction Scope of Requirements The objective of this tender is to select a supplier (or suppliers) for the supply and installation of: ● Component 1: Solar Mini-Grid PV systems ● Component 2: Modular Based Communication Systems with Outdoor Wi-Fi Network according to the provided technical specifications at the specified FREF site. For the following Site; Raviravi Village, Beqa Island -18.3...

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Procurement and Installation of Solar-Powered Water Well System in AlKufra

RFQ Open

United States, LIBYA 10 Oct 2026 (Closes in 11 days) UNDP-LBY-00731

Introduction Scope of Works for Supply and Installation of Solar-Powered Water Well System in Al Kufra (Well No.1) Project Description: The objective of this project is to supply, install, test, commission, and hand over a complete solar-powered water pumping system for an existing water well in Al Kufra. The system shall provide a reliable and sustainable water supply through the utilization o...

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Supply & Install Solar PV System for Water Refilling Station in Basilan

RFQ Open

United States, PHILIPPINES 12 Oct 2026 (Closes in 13 days) UNDP-PHL-01036

Introduction Interested suppliers must submit their offer directly in the system as instructed in the solicitation document, following the instructions in the available user guide. In case you have never registered before, you can register a profile using the registration link shared via the procurement notice and following the instructions in guides available in the UNDP website: https://www.u...

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Printer Repair and Maintenance for the Vehicle Inspection Program

TENDER Open

United States, Oregon 2 Oct 2026 (Closes in 4 days) S-34000-00017962

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DEP-BWR-NOI-FY27-M36 grant announcement only

TENDER Open

United States, Massachusetts 21 Oct 2026 (Closes in 23 days) BD-27-1045-BWR00-BWR01-133675

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Facility Plan for the Clackamas County Garbage & Recycling Transfer Station

TENDER Open

United States, Oregon 3 Nov 2026 (Closes in 36 days) S-C01010-00018023

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Independent Medical Examination (IME) RFR

TENDER Open

United States, Massachusetts 6 Oct 2026 (Closes in 8 days) BD-27-1042-ENV-ENV01-133439

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Cooperative Bid for Highway Rock Salt, Solar Salt, and LCC 32%, IFB 301/016/27

TENDER Open

United States, Massachusetts 8 Oct 2026 (Closes in 9 days) BD-24-1240-TOA01-TOA01-133410

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Royalston Solar Landfill RFP

RFP Open

United States, Massachusetts 8 Oct 2026 (Closes in 10 days) BD-27-1321-TORTH-TORTH-133367

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DEP-BWR-NOI-FY27-MS4 grant announcement only

TENDER Open

United States, Massachusetts 8 Oct 2026 (Closes in 10 days) BD-27-1045-BWR00-BWR01-133228

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Recycling Program Sponsorship Planning & Management Services (Re-solicitation)

TENDER Open

United States, Ohio 9 Oct 2026 (Closes in 11 days) cincinnati-oh-275X911178

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Sale of Trash Truck https://www.publicsurplus.com/sms/auction/view?auc=4081520. No documents availab

TENDER Open

United States, Massachusetts 6 Oct 2026 (Closes in 8 days) BD-23-1302-NAT01-CPO-133190

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DEP-BWR-NOI-FY27-LIS Nitrogen Reduction Grantt ANNOUNCEMENT ONLY

TENDER Open

United States, Massachusetts 21 Dec 2026 (Closes in 84 days) BD-27-1045-BWR00-BWR01-133107

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Residential Recycling Public Education Campaign

TENDER Open

United States, Texas 9 Oct 2026 (Closes in 11 days) dallascityhall-BU26-00030999

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LBE Solar-Decarbonization Grant Program for State Entities

TENDER Open

United States, Massachusetts 30 Jun 2027 (Closes in 274 days) BD-25-1041-ENE01-ENE01-107704

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DOER PON-ENE-2025-013 Climate Leader Communities Decarbonization Accelerator Grant Program

TENDER Open

United States, Massachusetts 5 Feb 2027 (Closes in 130 days) BD-25-1041-ENE01-ENE01-110103

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ENE53 Ultra-Low Sulfur Diesel, Biodiesel and Renewable Diesel

TENDER Open

United States, Massachusetts 1 Oct 2026 (Closes in 3 days) BD-26-1080-OSD03-OSD03-125640

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DEP-BPE-RFR-2026-CERP-Wastewater Energy Recovery Pilot Grant (WWER) GRANT ANNOUNCEMENT ONLY

TENDER Open

United States, Massachusetts 23 Oct 2028 (Closes in 756 days) BD-26-1045-BPE00-BPE01-129113

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DEP-BWR-NOI-FY27-604b grant announcement only

TENDER Open

United States, Massachusetts 7 Oct 2026 (Closes in 9 days) BD-27-1045-BWR00-BWR01-132526

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DEP-BWR-NOI-FY27-319 grant announcement only

TENDER Open

United States, Massachusetts 28 Oct 2026 (Closes in 30 days) BD-27-1045-BWR00-BWR01-132812

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Trash and recycling collection and transportation

TENDER Open

United States, Massachusetts 18 Nov 2026 (Closes in 50 days) BD-24-1169-WLTHM-WLTHM-132953

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Grant - UCF Tree Canopy Enhancement Grant Program

TENDER Open

United States, Massachusetts 2 Nov 2026 (Closes in 35 days) BD-27-1020-DCRFS-DC366-132960

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FY2027 DCR Watershed System Salt Reduction Grant

TENDER Open

United States, Massachusetts 2 Oct 2026 (Closes in 4 days) BD-27-1020-DCRCU-DC250-133000

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Cascade Locks Fire Station Solar Plus Storage Microgrid Design/Build Services

TENDER Open

United States, Oregon 1 Oct 2026 (Closes in 3 days) S-X33157-00017870

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Environment & Sustainability Grants

California Pollution Control Financing Authority (CPCFA) Exempt Facility Bond Financing Program

Open Energy; Environment & Water US

United States $1,500,000 - $550,000,000

The Pollution Control Tax-Exempt Bond Financing Program facilitates low cost capital through private activity, tax-exempt bonds. The securities pay for acquisition, construction or installation of qualified pollution control, water furnishing, waste disposal, waste recovery facilities and equipment. Tax-exempt bond financing assists qualified borrowers to obtain lower interest rates than are available through conventional loans. CPCFA acts as a conduit issuer in the transaction. The bonds are issued to raise capital for revenue-generating projects where the funds are used by the borrower to make payments to investors. The conduit financing is typically backed by either the borrower's credit or monies pledged to the project by outside investors. If the project fails and goes into default...

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Coastal Conservancy Grants

Open Agriculture; Disadvantaged Communities; Disaster Prevention & Relief; Environment & Water; Housing, US

United States

Each year, the Coastal Conservancy issues millions of dollars in grants for projects that restore and protect the California coast, expand public access to it, and enhance its resilience to climate change. We fund a wide variety of projects along the California coast, San Francisco Bay, and in coastal watersheds. The Coastal Conservancy funds a wide variety of projects along the California coast, San Francisco Bay, and in coastal watersheds to increase availability of beaches, parks and trails for the public, protect and restore natural lands and wildlife habitat, preserve working lands, and increase community resilience to the impacts of climate change. The Conservancy will fund most stages of a project including: pre-project feasibility studies, property acquisition, project planning ...

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Investigating Site Contamination Program (ISCP)

Open Environment & Water US

United States $1 - $100,000

Department of Toxic Substances Control's (DTSC) ISCP offers loans to eligible applicants, including governmental entities, private businesses, individuals, and non-profit organizations, to help finance environmental site assessments. DTSC's ISCP Loan Program provides loans for property owners, developers, community groups, and local governments to conduct preliminary endangerment assessment of underutilized urban properties. Loan used to conduct preliminary endangerment assessments. If redevelopment of property is determined not to be economically feasible, up to 75 percent of the loan amount can be waived.

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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...

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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...

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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...

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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 ...

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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...

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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...

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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...

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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...

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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.

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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

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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.

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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.

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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.

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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.

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Energy Efficiency Assessment Program

Open US 24-3369-01

United States $5,000 - $25,000

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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

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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.

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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.

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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

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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.

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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.

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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...

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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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Environment & Sustainability Tenders in the United States

Who this is for

Top Funders

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Environment & Sustainability Tenders

Environment & Sustainability Grants

Frequently Asked Questions

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