Company lists · Data refreshed September 2026

Top 21 Stormwater management software companies based in the United Kingdom

RevenueBase identified 47 stormwater management software companies headquartered in the United Kingdom as of September 2026 and tracks 912 professional contacts across them, including 366 with verified work emails. London is the largest hub.

This list covers stormwater management software companies headquartered in the United Kingdom, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 29, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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 HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 29, 2026 86% judged on-target in blind review
47Companies
912Contacts tracked
366Verified emails
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The 21 largest stormwater management software companies based in the United Kingdom

Ranked by team size
Top 21 of 47 stormwater management software companies based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 29, 2026. RevenueBase Smart Search rates how each company's information relates to stormwater management software companies: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Partial evidenceKettering, United KingdomHQ checked Sep 29, 202651-200112 contacts →

Partial evidence

“AWMS, part of Alumasc Group, is the first joined-up brand in integrated water management.”

Source: RevenueBase Database · checked Sep 29, 2026
2Partial evidenceBelfast, United KingdomHQ checked Sep 29, 202651-20086 contacts →

Partial evidence

“StormHarvester is a leading software provider in the wastewater space.”

Source: RevenueBase Database · checked Sep 29, 2026
3Partial evidenceShefford, United KingdomHQ checked Sep 29, 2026201-50085 contacts →

Partial evidence

“ACO is recognised as a global leader in the development and manufacture of high performance surface water management systems.”

Source: RevenueBase Database · checked Sep 29, 2026
4Partial evidencePortland, United KingdomHQ checked Sep 29, 2026201-50045 contacts →

Partial evidence

“Hydro International, a CRH Company, provides advanced products, services and expertise to help municipal, industrial and construction customers to improve their water management…”

Source: RevenueBase Database · checked Sep 29, 2026
5Partial evidenceBanbury, United KingdomHQ checked Sep 29, 202651-20043 contacts →

Partial evidence

“Graf UK Ltd was formed following the acquisition of SCP Water Management Ltd by Graf GmbH, the European market leaders in rainwater harvesting.”

Source: RevenueBase Database · checked Sep 29, 2026
6Partial evidenceRochdale, United KingdomHQ checked Sep 29, 202651-20021 contacts →

Partial evidence

“Keytec Installation Services supplies and installs stormwater attenuation systems, soakaways, sub-base replacement modules, geomembrane applications including pond-lining and…”

Source: RevenueBase Database · checked Sep 29, 2026
7Indirect evidenceCambridge, United KingdomHQ checked Sep 29, 202611-5017 contacts →

Indirect evidence

“Cambridge Environmental Research Consultants was established in 1985 with the aim of making use of new developments in environmental research from Cambridge University and…”

Source: RevenueBase Database · checked Sep 29, 2026
8Partial evidenceStockport, United KingdomHQ checked Sep 29, 202611-5013 contacts →

Partial evidence

“Hydro WMS specialise in the supply and installation of water management systems that reduce surface water waste, prevent localised flooding and meet the legislative requirements…”

Source: RevenueBase Database · checked Sep 29, 2026
9Strong evidenceStroud, United KingdomHQ checked Sep 29, 202611-5013 contacts →

Strong evidence

“At map16 Asset Management, we revolutionise infrastructure and utility management with our cutting-edge GIS software and wastewater monitors.”

Source: RevenueBase Database · checked Sep 29, 2026
10Partial evidenceEdinburgh, United KingdomHQ checked Sep 29, 202611-5012 contacts →

Partial evidence

“Caley Water is a water and environmental consultancy that offers a range of specialist hydraulic modelling, data survey management and civil engineering design services.”

Source: RevenueBase Database · checked Sep 29, 2026
11Indirect evidenceForres, United KingdomHQ checked Sep 29, 20261-109 contacts →

Indirect evidence

“Biomatrix Water Solutions is a Scotland-based ecological engineering company with a global footprint, dedicated to advancing sustainable water solutions.”

Source: RevenueBase Database · checked Sep 29, 2026
12Indirect evidenceManchester, United KingdomHQ checked Sep 29, 20261-108 contacts →

Indirect evidence

“An official spinout company of The University of Manchester’s Water Resource Group.”

Source: RevenueBase Database · checked Sep 29, 2026
13Indirect evidenceBirmingham, United KingdomHQ checked Sep 29, 202611-507 contacts →

Indirect evidence

“A team of highly experienced hydraulic modellers offering specialist integrated catchment modelling services and solutions using Infoworks ICM.”

Source: RevenueBase Database · checked Sep 29, 2026
14Indirect evidenceExeter, United KingdomHQ checked Sep 29, 20261-105 contacts →

Indirect evidence

“Our Rainwater believes collective action and community engagement will help create a more sustainable future for our water resources and systems.”

Source: RevenueBase Database · checked Sep 29, 2026
15Indirect evidenceAbergavenny, United KingdomHQ checked Sep 29, 20261-105 contacts →

Indirect evidence

“SuDSPlanter Ltd provide a range of high-quality rainwater planter products and services to reduce the volume of rainwater entering drainage and sewer systems.”

Source: RevenueBase Database · checked Sep 29, 2026
16Indirect evidenceCheltenham, United KingdomHQ checked Sep 29, 20261-104 contacts →

Indirect evidence

“Established in Ochtrup Germany in 1993, Hewitech commenced UK manufacturing in 2014 making it the fifth country in the world to manufacture Hewitech products, other manufacturing…”

Source: RevenueBase Database · checked Sep 29, 2026
17Partial evidenceSomerset, United KingdomHQ checked Sep 29, 202651-2003 contacts →

Partial evidence

“Optimised Design, Engineered to Last We design, manufacture and install water management systems for sustainable infrastructure.”

Source: RevenueBase Database · checked Sep 29, 2026
18Partial evidenceManchester, United KingdomHQ checked Sep 29, 20261-103 contacts →

Partial evidence

“Sudstech® offers environmentally friendly and sustainable water management solutions developed for both the commercial and public sectors.”

Source: RevenueBase Database · checked Sep 29, 2026
19Strong evidenceHinckley, United KingdomHQ checked Sep 29, 20261-103 contacts →

Strong evidence

“Stormwater Management Ltd are specialists in the design, supply, and install of surface water management and sustainable drainage systems, whether the requirement is for…”

Source: RevenueBase Database · checked Sep 29, 2026
20Partial evidenceCaerphilly, United KingdomHQ checked Sep 29, 202611-501 contacts →

Partial evidence

“Aqua Response delivers expert drainage, water management, and flood resilience solutions for commercial, industrial, and residential clients across the UK.”

Source: RevenueBase Database · checked Sep 29, 2026
21Strong evidenceBlackpool, United KingdomHQ checked Sep 29, 20261-101 contacts →

Strong evidence

“Next generation stormwater management at source.”

Source: RevenueBase Database · checked Sep 29, 2026

Showing 21 of 47 stormwater management software companies based in the United Kingdom

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Stormwater management software companies based in the United Kingdom at a glance

As of Sep 29, 2026
40.1%Verified-email coverage
19.4Average contacts per company
11-50Median size (employees)
6.4%Largest-city concentration · London
Sep 29, 2026Page data refreshed

Companies by employee count

1-10
17
11-50
12
51-200
13
201-500
5

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 47 companies.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among stormwater management software companies, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies
Companies headquartered in the United Kingdom whose own description of what they do matches “stormwater management software companies”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search
RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names stormwater management software companies), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude
Companies whose own description does not clearly place them among stormwater management software companies, and records with no verified work email. Companies headquartered outside United Kingdom are excluded even when they keep an office there.
Match quality
In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
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 listed company carries at least one verified work email, 366 across the full list. 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 September 29, 2026. Lists refresh periodically as the graph is re-checked.
Corrections
Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names stormwater management software companies, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many stormwater management software companies are there based in the United Kingdom?

RevenueBase identified 47 stormwater management software companies headquartered in the United Kingdom as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

Alumasc Water Management Solutions, headquartered in Burton Latimer Kettering, tops this list with the largest team on record.

Which city has the most stormwater management software companies?

London leads with 3 headquartered companies, followed by Manchester (3) and Derby (2).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 366 verified decision-maker contacts tracked across these 47 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 29, 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 Smart Search, 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.