Company lists · Data refreshed November 2026

Top 25 Clean water access organizations based in the United Kingdom

RevenueBase identified 110 company matches for clean water access organizations associated with the United Kingdom as of November 2026 and tracks 2,395 professional contacts across them, including 751 with verified work emails. London is the largest hub.

This list covers company matches for clean water access organizations associated with the United Kingdom, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed November 6, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list RevenueBase SmartSearch · Exact Recorded Nov 6, 2026 How this list was built
110Companies
2,395Contacts tracked
751Verified emails
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The 25 largest clean water access organizations based in the United Kingdom

Ranked by team size
Top 25 of 110 company matches for clean water access organizations based in the United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchLondon, United KingdomHQ recorded Nov 6, 2026501-1,0001,278 contacts →

Exact match

“WaterAid is an international charity with one goal: to change the world through water.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchWallasey, United KingdomHQ recorded Nov 6, 202651-20064 contacts →

Exact match

“Aqualogic is an integrated water conservation and demand management business, helping water companies reduce waste, improve performance and strengthen long-term resilience through…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchColchester, United KingdomHQ recorded Nov 6, 202651-20052 contacts →

Exact match

“As the UK’s foremost provider of alternative water services, we’re dedicated to ensuring that every business and household has access to a quality water supply – no matter what.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchNorth Berwick, United KingdomHQ recorded Nov 6, 202611-5034 contacts →

Exact match

“AWS is a global membership collaboration comprising businesses, NGOs and the public sector.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchEdinburgh, United KingdomHQ recorded Nov 6, 202611-5032 contacts →

Exact match

“Research, advocacy and action to ensure a fair and sustainable water future.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchLondon, United KingdomHQ recorded Nov 6, 202611-5031 contacts →

Exact match

“Pump Aid is a UK registered international non-governmental organisation that's core purpose is the delivery of affordable, appropriate and sustainable technologies to meet the…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchShrewsbury, United KingdomHQ recorded Nov 6, 20261-1024 contacts →

Exact match

“Working with district, provincial & national partners in Zambia & Mozambique, we improve health and opportunity by supporting lasting, local solutions to reach everyone with…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchLondon, United KingdomHQ recorded Nov 6, 20261-1020 contacts →

Exact match

“Sand Dams Worldwide is a not for profit organisation that supports rural, dryland communities to work their way out of poverty with dignity.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchRichmond, United KingdomHQ recorded Nov 6, 20261-1019 contacts →

Exact match

“Just a Drop brings sustainable safe water, sanitation and hygiene projects to communities around the world.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchWinchester, United KingdomHQ recorded Nov 6, 202611-5017 contacts →

Exact match

“A UK business focusing on water access solutions in challenging environments through sustainable social impact projects encompassing Government-to-Government bilateral compliance…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchWoking, United KingdomHQ recorded Nov 6, 202611-5017 contacts →

Exact match

“At PureH2O Ltd we put environmental sustainability at the heart of everything we do.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchLondon, United KingdomHQ recorded Nov 6, 202611-5017 contacts →

Exact match

“For over 30 years the Busoga Trust has been working to provide the people of rural Uganda with clean water, and comprehensive hygiene & sanitation education.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchBristol, United KingdomHQ recorded Nov 6, 20261-1016 contacts →

Exact match

“There are 663 million people in the world without access to safe drinking water.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchLondon, United KingdomHQ recorded Nov 6, 20261-1015 contacts →

Exact match

“Water Unite is an innovative new non-profit aiming to raise hundreds of millions of dollars for water & sanitation and plastic waste management and recycling through…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchWivenhoe, United KingdomHQ recorded Nov 6, 20261-1014 contacts →

Exact match

“Aguaconsult provides technical assistance and consulting inputs for clients around the world and has developed capacity and a proven-track record in relation to two principal…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchLondon, United KingdomHQ recorded Nov 6, 202651-20014 contacts →

Exact match

“We are a UK-based social enterprise, founded in 2018 by Kenyan-born Moses Tai.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchLondon, United KingdomHQ recorded Nov 6, 20261-1014 contacts →

Exact match

“The Cycle is a nonprofit on a mission to strengthen all people and the planet through the empowerment of women.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchReading, United KingdomHQ recorded Nov 6, 2026n/a12 contacts →

Exact match

“At Aquaphor, we aim to make the highest quality water accessible to everyone.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchSevenoaks, United KingdomHQ recorded Nov 6, 202611-5010 contacts →

Exact match

“OVER 20 YEARS EXPERIENCE.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchBrockenhurst, United KingdomHQ recorded Nov 6, 20261-108 contacts →

Exact match

“We bring the water sector together – from start-ups to regulators – informing collaboration to shape the future.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchCambridge, United KingdomHQ recorded Nov 6, 20261-108 contacts →

Exact match

“Majicom is a tech social enterprise dedicated to solving drinking water issues across East Africa.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchLondon, United KingdomHQ recorded Nov 6, 202651-2007 contacts →

Exact match

“Water & Sanitation for the Urban Poor (WSUP) helps transform cities to benefit the millions who lack access to water and sanitation.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchLondon, United KingdomHQ recorded Nov 6, 20261-106 contacts →

Exact match

“Project Waterfall is the charity of choice for the coffee industry, aiming to end the water crisis in our lifetime.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchWinchester, United KingdomHQ recorded Nov 6, 20261-105 contacts →

Exact match

“Our water harvesting brings sustainable change to last mile communities.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchLondon, United KingdomHQ recorded Nov 6, 202611-505 contacts →

Exact match

“United Global Water Holdings Limited develops and sponsors distinct technologies and services for water purification and wastewater treatment as well as for resource recovery and…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 25 of 110 clean water access organizations based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 751 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Clean water access organizations based in the United Kingdom at a glance

As of Nov 6, 2026
31.4%Verified-email coverage
21.8Average contacts per company
1-10Median size (employees)
32.7%Largest-city concentration · London
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
70
11-50
27
51-200
9
501-1,000
1
1,001-5,000
1
5,001-10,000
1

Email recency for this list is measured worldwide rather than for United Kingdom, so it is reported there. Company counts and contact totals on this page are exact for United Kingdom, over 110 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies
Company records associated with the United Kingdom whose business descriptions match “clean water access organizations” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch
Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview
The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
Ranking
Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification
Every displayed company carries at least one verified work email. RevenueBase tracks 751 professional contacts with verified work emails across the full matched dataset. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh
This page's figures were pulled from the company graph on November 6, 2026. Lists refresh periodically as the graph is re-checked.
Record context
Company records and descriptions can change. Check the company's website for its current services and locations.

Clean water access organizations by metro

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “clean water access organizations”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many clean water access organizations are there based in the United Kingdom?

RevenueBase identified 110 company matches for clean water access organizations associated with the United Kingdom as of November 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Wateraid tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most clean water access organizations?

London leads with 36 company records, followed by Winchester (3) and Bristol (2).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 751 professional contacts with verified work emails tracked across these 110 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on November 6, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase SmartSearch, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.