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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.

518 open opportunities in this category

Wind turbines and solar panels — renewable energy infrastructure

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

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

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...

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...

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...

United States, Oregon 2 Oct 2026 (Closes in 4 days) S-34000-00017962
United States, Massachusetts 21 Oct 2026 (Closes in 23 days) BD-27-1045-BWR00-BWR01-133675
United States, Oregon 3 Nov 2026 (Closes in 36 days) S-C01010-00018023
United States, Massachusetts 6 Oct 2026 (Closes in 7 days) BD-27-1042-ENV-ENV01-133439
United States, Massachusetts 8 Oct 2026 (Closes in 9 days) BD-24-1240-TOA01-TOA01-133410
United States, Massachusetts 8 Oct 2026 (Closes in 9 days) BD-27-1321-TORTH-TORTH-133367
United States, Massachusetts 8 Oct 2026 (Closes in 10 days) BD-27-1045-BWR00-BWR01-133228
United States, Ohio 9 Oct 2026 (Closes in 11 days) cincinnati-oh-275X911178
United States, Massachusetts 6 Oct 2026 (Closes in 8 days) BD-23-1302-NAT01-CPO-133190
United States, Massachusetts 21 Dec 2026 (Closes in 84 days) BD-27-1045-BWR00-BWR01-133107
United States, Texas 9 Oct 2026 (Closes in 11 days) dallascityhall-BU26-00030999
United States, Massachusetts 30 Jun 2027 (Closes in 274 days) BD-25-1041-ENE01-ENE01-107704
United States, Massachusetts 5 Feb 2027 (Closes in 130 days) BD-25-1041-ENE01-ENE01-110103
United States, Massachusetts 1 Oct 2026 (Closes in 3 days) BD-26-1080-OSD03-OSD03-125640
United States, Massachusetts 23 Oct 2028 (Closes in 756 days) BD-26-1045-BPE00-BPE01-129113
United States, Massachusetts 7 Oct 2026 (Closes in 9 days) BD-27-1045-BWR00-BWR01-132526
United States, Massachusetts 28 Oct 2026 (Closes in 30 days) BD-27-1045-BWR00-BWR01-132812
United States, Massachusetts 18 Nov 2026 (Closes in 50 days) BD-24-1169-WLTHM-WLTHM-132953
United States, Massachusetts 2 Nov 2026 (Closes in 35 days) BD-27-1020-DCRFS-DC366-132960
United States, Massachusetts 2 Oct 2026 (Closes in 4 days) BD-27-1020-DCRCU-DC250-133000

Environment & Sustainability Grants

United States $3,000,000 - $6,500,000 30 Oct 2026 (33 days left)

Awarding agency: Commerce And Econ Opp. Type of assistance: Grant. Application period: 09/22/2026 - 10/30/2026 : 5:00 PM. Award range: $3000000 - $6500000. Estimated total programme funding: $16000000.00. Source of funding: State. Cost sharing or matching: No. Application link: Please copy the entire address below and paste it into the browser... https://dceo.illinois.gov/aboutdceo/grantopportunities/3137-4342.html

Open Science_technology_and_other_research_and_development US NNH25ZDA001N-BIOS
United States 6 Nov 2026 (39 days left)

The close date above is the date for the Step-2 proposal due date. The Step-1 proposal due date is September 4, 2026. Step-2 proposals cannot be submitted if a Step-1 proposal was not submitted. NOTICE: Amended July 20, 2026. This amendment adds this new program element to ROSES-2025. This element uses a two-step proposal process (Section 4). Step-1 proposals are due by September 4, 2026, and Step-2 proposals are due November 6, 2026. Any proposal not preceded by an on-time compliant Step-1 proposal will be returned without review. The page limit for the S/T/M section of Step-2 proposals is 12 pages. Proposers to this program element are strongly encouraged to use the optional Earth Science Division template for the required summary table of work effort of the proposal; templates are av...

United States Up to $175,000 9 Nov 2026 (42 days left)

The purpose of this Notice of Funding Opportunity (NOFO) is to support eligible Tribes and intertribal consortia to implement approved Nonpoint Source (NPS) management programs developed pursuant to CWA Section 319(b)(1). The Clean Water Act (CWA) Section 319(h) authorizes the EPA to award grants to eligible Tribes and intertribal consortia to implement approved NPS management programs. This NOFO will fund implementation of best management practices (BMPs) and measures that have been outlined in Tribal NPS Management Program Plans to address NPS pollution sources that have been identified in a Tribe’s Assessment Report.Eligible applicants to this Notice of Funding Opportunity (NOFO) are federally recognized Tribes and intertribal consortia that meet the eligibility requirements describe...

Open Science_technology_and_other_research_and_development US NNH25ZDA001N-PSEF
United States 10 Nov 2026 (43 days left)

NOTICE: Amended July 21, 2026. This amendment adds to ROSES-2025 this program element which was previously listed as not solicited this year. Proposals are due November 10, 2026. New this year: no Step-1 or Notice of Intent is requested. New this year: Proposals to this program element will be evaluated using a dual-anonymous peer review process. See guidelines in Section 3.13 of C.1, and in the associated "Guidelines for Anonymous Proposals" document under "Other Documents" on the NSPIRES page for this program element for the preparation of anonymous proposals. NOTICE: Research security training required starting August 5, 2026. All PIs and any Co-Is that would spend ≥ 10% time on a proposed grants or cooperative agreements must certify they have taken research security training. NASA ...

United States $30,000 - $750,000 10 Nov 2026 (43 days left)

The NLGCA Program, under assistance listing number 10.326, will assist NLGCA institutions in maintaining and expanding their capacity to conduct education, research, outreach, and integrated activities relating to agriculture, renewable resources, and other similar disciplines. NLGCA institutions may use the funds to maintain and expand capacity: 1. to successfully compete for funds from Federal grants and other sources to carry out educational, research, outreach, and integrated activities that address priority concerns of national, regional, State, and local interest;2. to disseminate information relating to priority concerns to: a. interested members of the agriculture, renewable resources, and other relevant communities;b. the public; andc. any other interested entity;3. t...

United States Up to $200,000 13 Nov 2026 (47 days left)

Awarding agency: Illinois Finance Authority. Application period: 09/01/2026 - 11/13/2026. Award range: $0 - $200000.

Open Science_technology_and_other_research_and_development US 26-522
United States 16 Nov 2026 (49 days left)

The U.S. National Science Foundation Directorate for Mathematical and Physical Sciences (NSF MPS) supports multiple research programs in the astronomical sciences. NSF MPS funds foundational astronomical sciences research and instrumentation focused on exploring space and advancing fundamental understanding of the universe.The programs covered by this funding opportunity are:Astronomical Sciences Core ResearchAstronomical Sciences Technology & InstrumentationAstronomical Sciences InnovationsResearch supported by these programs is essential for ongoing discovery in a range of fields. The programs provide a strong scientific foundation for America's capabilities in multiple areas: predicting solar storms, discovering potentially habitable planets in other solar systems, understanding ...

Open Agriculture, environment, natural_resources US USDA-NHQ-ACEP-26-NOFO0001456
United States $250,000 - $5,000,000 19 Nov 2026 (52 days left)

The opportunities associated with this NOFO are for lands protected through the Wetland Reserve Easements (WRE) component of the Agricultural Conservation Easement Program (ACEP) and the Floodplain Easement (FPE) component of the Emergency Watershed Protection Program (EWPP). The types of work available through this opportunity fall into three primary categories: 1) restoration of wetland and floodplain easements; 2) stewardship of wetland and floodplain easements, and 3) onsite and offsite assessment of easement conditions.  Component 1) Wetland and Floodplain Easement Restoration.  Awardees will work with NRCS personnel, partners and landowners to develop and implement sound easement restoration plans. These plans may include structural practices, such as levees and water co...

Open Science_technology_and_other_research_and_development US NNH25ZDA001N-TCAN
United States 3 Dec 2026 (66 days left)

PLEASE NOTE: this program has MANDATORY Notices of Intent, which are due via NSPIRES by October 15, 2026. See the full posting on NSPIRES for details. NOTICE: Amended August 31, 2026. This amendment releases the final text for this program element, which was previously TBD. Mandatory NOIs are due October 15, 2026, and proposals are due December 3, 2026. There are several major changes since the prior (2022) opportunity, so proposers please read carefully. This program will evaluate proposals using an enhanced dual-anonymous peer review, see Section 5 and the associated "Guidelines for Proposers to ROSES DAPR Programs" document under "Other Documents" on the right side of this NSPIRES page. This synopsis is a generic summary that is posted for each of the many individual "program element...

Open Science_technology_and_other_research_and_development US NNH25ZDA001N-CRYO
United States 4 Dec 2026 (67 days left)

PLEASE NOTE: this program has MANDATORY Notices of Intent, which are due via NSPIRES by October 16, 2026. See the full posting on NSPIRES for details. NOTICE: Amended September 1, 2026. This amendment adds this new program element to ROSES-2025. Mandatory Notices of Intent (see Section 4) are due by October 16, 2026, and proposals are due December 4, 2026. Any proposal not preceded by an on-time Notice of Intent (NOI) will be returned without review. The length of the S/T/M section is limited to 12 pages. A briefing for proposers to this program element will occur approximately 6 weeks before the proposal due date. Teleconference information will be posted under "other documents" on the NSPIRES page for this program element. Proposers are strongly encouraged to use&n...

Open Science_technology_and_other_research_and_development US NNH26ZDA016C
United States 4 Dec 2026 (67 days left)

The National Aeronautics and Space Administration (NASA) Science Mission Directorate (SMD) and Human Spaceflight Mission Directorate (HSMD) have released the fifth Solar System Exploration Research Virtual Institute (SSERVI) Cooperative Agreement Notice (CAN-5) as NNH26ZDA016C. SSERVI CAN-5 (NNH26ZDA016C) invites the submission of multi-institutional team-based proposals for research as participating members of the Solar System Exploration Research Virtual Institute (SSERVI). Proposals must clearly articulate an innovative research program addressing basic and/or applied research fundamental to understanding the nature of the Moon and its near space environment to enable future human exploration of the Moon with Artemis. “Mars forward” proposals that use lunar-focused research to develo...

Open Disadvantaged Communities; Environment & Water; Health & Human Services; Parks & Recreation US
United States $200,000 - $8,500,000 17 Dec 2026 (81 days left)

The Statewide Park Development and Community Revitalization Program (SPP) that helps support the acquisition and development of new parks and the renovation or expansion of existing parks in critically underserved and climate-vulnerable communities. Visit the California State Parks SPP webpage for information about the grant program and application process. Grant Description: Helps support the acquisition and development of new parks and the renovation or expansion of existing parks in critically underserved and climate-vulnerable communities. Deadline: Applications must be submitted online by December 17, 2026. Grant Amount per Application: • Maximum grant request: $8,500,000 • Minimum grant request: $200,000 No Match. Eligible Applicants: Cities, Counties, Districts, Joint Powers Auth...

Open Agriculture; Disadvantaged Communities; Environment & Water; Science, Technology, and Research & Dev US
United States $100,000 - $1,000,000 18 Dec 2026 (82 days left)

The NPS Grant Program seeks proposals for projects that reduce runoff of pollution to waters of the state, such as agricultural projects that reduce pesticide and nutrient runoff, improvement or decommissioning of dirt roads to reduce erosion and sediment runoff, streambank stabilization to reduce erosion and infrastructure improvements for ranching and livestock operations to reduce erosion and runoff of nutrients and pathogens. The 2027 Nonpoint Source Grant Program Guidelines (Guidelines), posted on the NPS Grant Program website (https://www.waterboards.ca.gov/water_issues/programs/nps/319grants.html), describe program preferences, eligibility requirements, application process and instructions, project selection criteria, and the grant award process. Please note one of the minimum el...

United States Up to $1,000,000 31 Dec 2026 (95 days left)

Awarding agency: Illinois Finance Authority. Application period: 06/15/2026 - 12/31/2026. Award range: $0 - $1000000.

United States $1 - $1 15 Jan 2027 (109 days left)

The U.S Department of Energy (DOE)’s Office of Critical Minerals and Energy Innovation (CMEI) intends to establish, on behalf of the Analysis and Strategy Office (ASO), the PROSPECT Program—Providing Opportunities for Specialized Education in Critical Technologies—and anticipates investing up to $100 million, subject to the availability of appropriated funds, to strengthen the nation's educational capacity in critical minerals and materials.¿ The activities under this anticipated PROSPECT Program support collaborative approaches that strengthen educational pathways across the entire critical minerals and materials value chain—from mineral resource development and extraction through processing, manufacturing, recycling, and related supply chain activities. Specifically, the planned PROSP...

Open Environment US EPA-OAR-OTAQ-26-01
United States Up to $12,000,000 22 Jan 2027 (116 days left)

This Notice of Funding Opportunity (NOFO) announces the availability of funds under the Diesel Emissions Reduction Act (DERA) Program and solicits applications from eligible entities to incentivize and accelerate the upgrade or retirement of the nation’s legacy diesel engine fleet. Eligible activities include the retrofit or replacement of existing diesel engines, vehicles, and equipment with the U.S. Environmental Protection Agency (EPA) and California Air Resources Board (CARB) certified or verified technologies. There are several ways DERA recipients may implement projects and fund project partners, depending on the roles and responsibilities of each. If the applicant is the owner of the target vehicles, the applicant may directly implement the project. If the applicant is partnering...

Open Science_technology_and_other_research_and_development US NNH25ZDA001N-HYDRO
United States 28 Jan 2027 (122 days left)

The close date above is the date for the Step-2 proposal due date. The Step-1 proposal due date is October 8, 2026. Step-2 proposals cannot be submitted if a Step-1 proposal was not submitted. NOTICE: Amended September 2, 2026. This amendment adds this new program element to ROSES-2025. Step-1 proposals are due October 8, 2026, and Step-2 proposals are due January 28, 2027. Any proposal not preceded by an on-time compliant Step-1 proposal will be returned without review. A briefing for potential proposers to this program element will occur Monday, September 14, from 2-3 PM Eastern Time. Connection information will be posted under "other documents" on the NSPIRES page for this program element. Proposals submitted to this program will be evaluated using dual anonymous peer review, see Sec...

United States 1 Feb 2027 (126 days left)

Provide resources to local agencies to develop or improve public boat launching facilities, primarily for motorized vessels. In accordance with Section 72.5 of the Harbors and Navigation Code, Boat Launching Facility (BLF) grants are provided to local government agencies for the construction or improvement of boat launching ramps, restrooms, boarding floats, shore protection, parking for vehicles and boat trailers, and ancillary items. Also included in the grant are monies to pay for engineering, construction inspection, permits from regulatory agencies, special studies, construction contingency, and other project related costs. The primary purpose of the grant is to provide and improve access to California’s waterways by the recreational boating public using trailerable watercraft.

United States 1 Feb 2027 (126 days left)

Provide resources to local agencies to repair or renovate public boating access facilities. The Statewide Ramp Repair and Modification Grant Program provides grant funding to public agencies to quickly restore safe and convenient public boating access by correcting public health and safety issues caused by unexpected damage due to flood, accidents, wildfires or by extending existing boat ramps as needed due to drought conditions at DBW-funded boat launching facilities. Typical grant-funded items include repairing or replacing boat ramps, boarding floats, restroom and parking facilities for vehicles with boat trailers.

United States $1,000 - $10,000 1 Feb 2027 (126 days left)

Provide resources to replace or install signs at DBW funded boat launching facilities. The Statewide Sign Grant Program installs and replaces signs for previously funded Boating and Waterways projects that are either obsolete, display incorrect information, are badly worn and unattractive, are missing or damaged, are needed for safety, or are required as a condition of receiving federal funds.

United States 1 Feb 2027 (126 days left)

Provide resources to local agencies to develop or improve public non-motorized boating access. The Statewide Non-Motorized Boat Launching Facility Grant Program provides funding to create or improve public non-motorized boating access. Typical grant-funded items include the construction of small, hand-launched boat ramps, small parking lots, and restrooms.

United States Up to $35,000 1 Mar 2027 (155 days left)

Awarding agency: Illinois Environmental Protection Agency. Application period: 05/20/2026 - 03/01/2027. Award range: $0 - $35000.

United States 30 Jun 2027 (275 days left)

This grant provides resources for keeping boater sewage from California waterways. The Pumpout Facility Grant Program funds the operation and maintenance of pumpout and dump stations on California's waterways.

United States 30 Jun 2027 (275 days left)

This grant provides resources for keeping boater sewage from California waterways. The Pumpout Facility Grant Program funds the construction of pumpout and dump stations on California's waterways.

Open Environment & Water US
United States $1 - $15,000,000 30 Jun 2030 (1372 days left)

The purpose of the funding is to provide technical and financial assistance to local agencies for the construction of water recycling projects that promote the beneficial use of treated municipal wastewater in order to augment fresh water supplies in California. Eligible Applicants: Local public agencies, 501(c)(3) nonprofit organizations qualified to do business in California, Public Utilities, Federally and non-federally recognized Native American tribes on the Native American Heritage Commission’s list, and Mutual water companies. Eligible Uses: Eligible projects include recycled water treatment; recycled water storage, distribution, and pumping; groundwater recharge; indirect potable reuse; surface water augmentation; and large scale recycled water projects. Ineligible Uses: Operati...

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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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