Company lists · Data refreshed September 2026
Top 25 Legionella prevention services worldwide
RevenueBase identified 385 legionella prevention services worldwide as of September 2026 and tracks 3,023 professional contacts across them, including 912 with verified work emails. The United Kingdom is the largest market and London the largest hub.
This list covers legionella prevention services worldwide, 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 20, 2026. Country and city lists for legionella prevention services follow the table.
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.
The 25 largest legionella prevention services worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 134 contacts → | ||||
Partial evidence “SMS Environmental provide innovative technical solutions to buildings and facilities managers in areas of Legionella control, health and safety, ductwork and ventilation system…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 2 | 113 contacts → | ||||
Partial evidence “We provide a comprehensive range of specialist water treatment & water hygiene services including legionella control, risk assessment, asset monitoring, water system remedial…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 3 | 87 contacts → | ||||
Indirect evidence “HBE is a well respected provider of compliance services on local basis, assisting building & facilities managers in providing a safe and healthy built environment for employees…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 4 | 86 contacts → | ||||
Indirect evidence “Providing Air and Water Hygiene and Kitchen Extract Fire Safety services to clients nationwide.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 5 | 84 contacts → | ||||
Indirect evidence “Empresa nacional perteneciente al Grupo MTA, de más de 65 años de Experiencia, especializada en Laboratorio de Análisis de agua, aire y superficies, Tratamientos, Reciclaje y…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 6 | 82 contacts → | ||||
Indirect evidence “EZSA Sanidad Ambiental con más de 40 años de experiencia se destaca como empresa líder a nivel nacional del sector de Control de Plagas y Sanidad Ambiental.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 7 | 73 contacts → | ||||
Strong evidence “SAS WaterLtd are leading providers of professional legionella control, prevention and associated environmental hygiene and risk management services to organisations and…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 8 | 53 contacts → | ||||
Partial evidence “Laboratorio (Agua, Alimentos y Medio ambiente) de cobertura nacional: Muestreo y análisis de: agua, hielo, albercas, descargas residuales, Legionella, Alimentos, Superficies…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 9 | 42 contacts → | ||||
Indirect evidence “Proudly providing Water Compliance for our clients.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 10 | 40 contacts → | ||||
Indirect evidence “Evolution Water Services Ltd provides comprehensive service, consultancy and support to clients throughout the UK.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 11 | 36 contacts → | ||||
Indirect evidence “Welcome to Concept Environmental Solutions, your trusted water and air hygiene experts.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 12 | 36 contacts → | ||||
Indirect evidence “At Nant Ltd we provide award winning water safety solutions to the owners and occupiers of premises all across the UK and assist in the fulfilment of the legal responsibilities…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 13 | 36 contacts → | ||||
Partial evidence “Dakro Air & Water specialise in Legionella Risk control, Water Treatment, Pre- Commission Cleaning, Commissioning, Ductwork Cleaning, Fire Damper Testing and using UV-C for…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 14 | 32 contacts → | ||||
Indirect evidence “At IWC Innovations, we provide comprehensive water solutions to ensure safety, compliance, and system efficiency.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 15 | 31 contacts → | ||||
Indirect evidence “Founded as an independent company in 1995, Total Environmental Compliance are a leading UK based specialist in water hygiene and consultancy which provides services for…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 16 | 31 contacts → | ||||
Indirect evidence “We safeguard water systems for hospitals and healthcare facilities to protect patient health and ensure regulatory compliance?” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 17 | 30 contacts → | ||||
Partial evidence “Since 1990 we have provided our clients with leading edge solutions to legionella management.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 18 | 29 contacts → | ||||
Partial evidence “Hydraclean Ltd are experts in Legionella Compliance & Water Hygiene offering our services to a wide variety of sectors throughout the UK.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 19 | 29 contacts → | ||||
Partial evidence “At Legionella & Fire Safe Services, we protect people and property by delivering compliant, reliable and forward-thinking safety solutions.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 20 | 28 contacts → | ||||
Indirect evidence “For us, it’s personal.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 21 | 28 contacts → | ||||
Indirect evidence “At Aqua Technologies, we deliver customized water management solutions to meet your business needs.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 22 | 26 contacts → | ||||
Strong evidence “Legionellabeheer en -preventie is een vast onderdeel van uw dagelijks werk.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 23 | 25 contacts → | ||||
Indirect evidence “Air and Water Hygiene Specialists.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 24 | 25 contacts → | ||||
Indirect evidence “Quasi 40 anni di esperienza nel settore del trattamento delle acque primarie e di processo hanno reso Termoacqua Tecnologie il Partner di numerose ed importanti realtà.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 25 | 25 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
RevenueBase Smart Search
RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: legionella prevention services. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.
- Strong evidence
- The company's own public description of its business names legionella prevention services.
- Partial evidence
- Its own public description names part of legionella prevention services, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name legionella prevention services. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.
RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.
Showing 25 of 385 legionella prevention services worldwide
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Legionella prevention services worldwide at a glance
As of Sep 20, 2026Companies by employee count
Email recency is reported on each country list linked below.
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 legionella prevention services, 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.
- Coverage
- Every country. Country and city lists for legionella prevention services are linked below.
- What qualifies
- Companies worldwide whose own description of what they do matches “legionella prevention services”. 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 legionella prevention services), 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 legionella prevention services, and records with no verified work email.
- 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, 912 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 20, 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.
Legionella prevention services by location
4 lists · largest firstEvery Legionella prevention services list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
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 legionella prevention services, 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 legionella prevention services are there worldwide?
RevenueBase identified 385 legionella prevention services worldwide 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?
SMS Environmental LTD, headquartered in Glasgow, tops this list with the largest team on record.
Which country has the most legionella prevention services?
The United Kingdom leads with 158 companies, followed by Spain (49) and the Netherlands (28). Every legionella prevention services list by country and city is linked on this page.
Which city has the most legionella prevention services?
London leads with 11 headquartered companies, followed by Glasgow (5) and Madrid (4).
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 912 verified decision-maker contacts tracked across these 385 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 20, 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.