Water & Sanitation Tenders & Grants

Find tenders and grants for water supply, sanitation and hygiene (WASH), wastewater treatment, desalination, irrigation and integrated catchment management. Curated for water engineering firms, WASH NGOs, desalination and treatment plant operators, and irrigation contractors.

7,937 open opportunities in this category

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Who this is for

Water engineering consultancies, WASH NGOs, desalination and treatment operators, irrigation contractors, utility operators.

Top Funders

Major sources of procurement and grant funding in this category:

World Bank

Water Global Practice and GWSP trust fund.

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AfDB

African Water Facility.

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ADB

Water Financing Programme.

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UNICEF

WASH procurement for humanitarian response.

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USAID

Water Security, Sanitation and Hygiene Partnership.

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Water & Sanitation Opportunities

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

Health and Fitness Assessment Services - Fighting Fit Program

TENDER Open

Australia, South Australia 27 Oct 2026 (Closes in 28 days) SA-DEW059374

Health and Fitness Assessment Services - Fighting Fit Program. Issued by: Department for Environment and Water

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Tender for the investigation, drilling, rehabilitation, equipping, installation, commissioning and handover of groundwater infrastructure for unserved communities in Gauteng and Mpumalanga provinces for a period of six (6) months

TENDER Open

South Africa, Gauteng 16 Oct 2026 (Closes in 17 days) RW10420384/26

Tender for the investigation, drilling, rehabilitation, equipping, installation, commissioning and handover of groundwater infrastructure for unserved communities in Gauteng and Mpumalanga provinces for a period of six (6) months

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Wastewater Treatment Facility Annual Mechanical Services

TENDER Open

United States, Massachusetts 8 Oct 2026 (Closes in 10 days) BD-26-1306-NADPW-NADPW-133491

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Water Data Management Tools

TENDER Open

Australia, Western Australia 20 Oct 2026 (Closes in 22 days) WA-DWER101726

Agency: Department of Water and Environmental Regulation. Category: Information Technology Broadcasting and Telecommunications. Type: Tender

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Cross Connection Control & Back Flow Device Testing Program

TENDER Open

United States, Massachusetts 20 Oct 2026 (Closes in 22 days) BD-27-1784-LWS1-LWS1-133622

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Laverton Beasley Creek Expansion and Treatment

TENDER Open

Australia, Western Australia 3 Nov 2026 (Closes in 36 days) WA-WC7000015533

Agency: Water Corporation. Category: Building and Construction Machinery and Accessories. Type: Tender

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Acacia Prison Expansion Project – Wastewater Treatment Plant

TENDER Open

Australia, Western Australia 20 Oct 2026 (Closes in 22 days) WA-OMID2026111

Agency: Department of Transport and Major Infrastructure. Category: Building and Facility Construction and Maintenance Services. Type: Tender

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ITB - Purchase of Aluminum Sulfate Solution 2026

TENDER Open

United States, Oregon 30 Sep 2026 (Closes in 2 days) S-X34350-00017994

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ITB - Purchase of Ferric Chloride Solution 2026

TENDER Open

United States, Oregon 30 Sep 2026 (Closes in 2 days) S-X34350-00017995

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ITB - Purchase of Sodium Bisulfite 2026

TENDER Open

United States, Oregon 30 Sep 2026 (Closes in 2 days) S-X34350-00017997

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ITB - Purchase of Sodium Hydroxide Solution 2026

TENDER Open

United States, Oregon 30 Sep 2026 (Closes in 2 days) S-X34350-00017998

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MWRA Contract No. EXE-050 Security Equipment Maintenance and Repair

TENDER Open

United States, Massachusetts 16 Oct 2026 (Closes in 18 days) BD-19-1212-MWRA-DITP-133501

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Replacement and Rehabilitation of Water Mains, Storm Drains and Sewers in Hyde Park

TENDER Open

United States, Massachusetts 14 Oct 2026 (Closes in 16 days) BD-19-1131-BWSC1-BWSC1-133262

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Wastewater Treatment Plant Capacity Expansion

TENDER Open

Australia, Western Australia 29 Oct 2026 (Closes in 31 days) WA-DBCARIAT0127

Agency: Rottnest Island Authority. Category: Building and Facility Construction and Maintenance Services. Type: Tender

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Circular economy training for South Australian businesses

TENDER Open

Australia, South Australia 13 Oct 2026 (Closes in 14 days) SA-DEW059322

Circular economy training for South Australian businesses. Issued by: Department for Environment and Water

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Loveday and Mussel Lagoon Infrastructure Upgrades

TENDER Open

Australia, South Australia 12 Oct 2026 (Closes in 13 days) SA-DEW059307

Loveday and Mussel Lagoon Infrastructure Upgrades. Issued by: Department for Environment and Water

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Construction of Wetland Regulators

TENDER Open

Australia, South Australia 12 Oct 2026 (Closes in 13 days) SA-DEW059310

Construction of Wetland Regulators. Issued by: Department for Environment and Water

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For Purchase of Ford Brass Fittings and Parts

TENDER Open

United States, Massachusetts 1 Oct 2026 (Closes in 3 days) BD-19-1131-BWSC1-BWSC1-133167

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Filed Sub Bid - GP3 Replacement Well Implementation Project

TENDER Open

United States, Massachusetts 1 Oct 2026 (Closes in 3 days) BD-21-2174-SWD50-SWD50-133265

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Ashland Wastewater Treatment Plant Headworks Upgrade

TENDER Open

United States, Oregon 8 Oct 2026 (Closes in 10 days) S-KA0010-00017932

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SWSC Bid No. 27-04 Cobble Mountain Hydrostation Crane Replacement REBID

TENDER Open

United States, Massachusetts 30 Sep 2026 (Closes in 2 days) BD-27-1531-SWSPD-SWSPD-132622

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Cocos west island seawater desalination plant – design and construct

TENDER Open

Australia, Western Australia 1 Oct 2026 (Closes in 3 days) WA-WC7000015480

Agency: Water Corporation. Category: Building and Facility Construction and Maintenance Services. Type: Tender

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Jindabyne Wastewater Treatment Plant - Construction - RFT-2016441

TENDER Open

Australia, New South Wales 29 Oct 2026 (Closes in 31 days) NSW-RFT-2016441

66 weeks

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Snow Ridge Road (KNP5) CH50.8km Stabilisation Project in Kosciuszko National Park - SR01086

TENDER Open

Australia, New South Wales 28 Sep 2026 (Closes today) NSW-SR01086

Snow Ridge Road (KNP5) CH50.8km Stabilisation Project in Kosciuszko National Park - SR01086

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SBC0826 athletics track refurbishment works at ridlins stadium, stevenage

TENDER Open

United Kingdom 5 Oct 2026 (Closes in 7 days) CCD01862

Stevenage Borough Council are currently seeking tenders for the provision of ATHLETICS TRACK REFURBISHMENT WORKS AT RIDLINS STADIUM, STEVENAGE This procurement is a below threshold advertised tender . Organisations wishing to take part in this project are invited to ‘express an interest’ and also ‘opt in’ which will give access to the full tender documents in the e-tendering system. Mandatory s...

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Frequently Asked Questions

Who issues water tenders most frequently?

Municipal water utilities, ministries of water and sanitation, river-basin authorities, and donor-funded PMUs under World Bank, AfDB and ADB projects.

Are WASH grants available to private companies?

Yes — innovation grants from Grand Challenges Canada, USAID DIV, and IFC TechEmerge support private-sector WASH solutions, though most grant flows still run through NGOs and government.

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Water & Sanitation Tenders & Grants

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