Company lists · Data refreshed September 2026
Top 25 Water system maintenance services worldwide
RevenueBase identified 2,456 water system maintenance services worldwide as of September 2026 and tracks 15,228 professional contacts across them, including 3,700 with verified work emails. The United States is the largest market and Sao Paulo the largest hub.
This list covers water system maintenance 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 22, 2026. Country and city lists for water system maintenance 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 water system maintenance services worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 217 contacts → | ||||
Partial evidence “Company Overview: TRILITY is an established industry leader, dedicated in the delivery of water, wastewater, reuse and bio-solids solutions across Australia and New Zealand’s…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 2 | 208 contacts → | ||||
Partial evidence “PULLMAN, a licensee of STRUCTURAL TECHNOLOGIES’ products and technical support services, integrates technology-driven solutions into its industry-leading repair and maintenance…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 3 | 164 contacts → | ||||
Strong evidence “We are a leading specialist pipeline inspection, leak detection, valve maintenance and water audit company.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 4 | 161 contacts → | ||||
Indirect evidence “Furnizarea continuă a serviciilor de alimentare cu apă, canalizare şi epurare către toţi consumatorii respectând, cu rigurozitate, indicatorii de calitate şi eficienţă.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 5 | 142 contacts → | ||||
Indirect evidence “Voda je základem života.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 6 | 138 contacts → | ||||
Partial evidence “Moalajah is a leading company providing water and waste-water services to its clients in UAE.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 7 | 117 contacts → | ||||
Partial evidence “Duke’s is a leading provider of environmental services for maintaining and improving the health of underground infrastructure for wastewater, stormwater, water, and utilities.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 8 | 114 contacts → | ||||
Indirect evidence “Sinds 1962 is vandervalk+degroot uitgegroeid tot marktleider op het gebied van reiniging, inspectie en renovatie van diverse infrastructuurprojecten.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 9 | 109 contacts → | ||||
Indirect evidence “RDR S.p.A.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 10 | 95 contacts → | ||||
Indirect evidence “At Advanced Home Services our goal is to provide you with Advanced plumbing and heating services that will make your life simple, convenient and comfortable.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 11 | 84 contacts → | ||||
Partial evidence “CITCO Water - previously The C.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 12 | 81 contacts → | ||||
Indirect evidence “Nor Cal is a service contractor specializing in hydro excavation, CCTV, CIPP, root control, manhole rehab, pipe jetting, lateral launch, lateral lining, tank cleaning, s.u.e.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 13 | 78 contacts → | ||||
Strong evidence “Headquartered in Columbia, Missouri, Alliance Water Resources is a leading provider of professional operations and maintenance services for community water and wastewater systems…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 14 | 76 contacts → | ||||
Partial evidence “Pipe Management Australia is a leading utilities maintenance service provider operating on the east coast of Australia.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 15 | 72 contacts → | ||||
Indirect evidence “Outstanding Service for Over 50 Years Based in the New York metropolitan area but serving all of NY State, CT, and norther NJ, GA Fleet Associates serves Building Trades…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 16 | 68 contacts → | ||||
Partial evidence “Nous proposons des services innovants en adduction d'eau potable et systèmes d'assainissement, destinés aux industries, collectivités et institutions cherchant à optimiser leur…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 17 | 66 contacts → | ||||
Partial evidence “Commercial & Industrial Facility Maintenance Services including: Plumbing, Piping, & Camera Technologies Pipe Relining, Manhole Rehabilitation HVAC, Refrigeration, Building…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 18 | 66 contacts → | ||||
Indirect evidence “Esta página tem por objetivo mantermos um canal de comunicação com nossos clientes, parceiros e colaboradores.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 19 | 65 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 20 | 63 contacts → | ||||
Indirect evidence “MKE Engineering (Mid Kent Electrical) is the largest independent engineering service provider of its kind in the South East, operating from 3 different sites covering Kent…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 21 | 63 contacts → | ||||
Strong evidence “CSL is the number one service and maintenance provider to the water and wastewater sector.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 22 | 60 contacts → | ||||
Indirect evidence “Vi förnyar schaktfritt, rensar och utreder de större ledningarna i mark och hos industrier.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 23 | 60 contacts → | ||||
Indirect evidence “AKA SU» şirketi 1998 yılında kuruldu.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 24 | 58 contacts → | ||||
Strong evidence “Si Environmental, LLC, is a Texas-based company that leads the way in water and wastewater facility operations and maintenance.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 25 | 58 contacts → | ||||
Partial evidence “We are one of the UK’s fastest growing in and most dynamic maintenance services organisations, encompassing several specialist engineering operations within the group.” Source: RevenueBase Database · checked Sep 22, 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: water system maintenance 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 water system maintenance services.
- Partial evidence
- Its own public description names part of water system maintenance services, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name water system maintenance 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 2,456 water system maintenance services worldwide
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Water system maintenance services worldwide at a glance
As of Sep 22, 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 water system maintenance 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 water system maintenance services are linked below.
- What qualifies
- Companies worldwide whose own description of what they do matches “water system maintenance 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 water system maintenance 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 water system maintenance 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, 3,700 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 22, 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.
Water system maintenance services by location
12 lists · largest firstEvery Water system maintenance services list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Water system maintenance services based in the United States668
- Water system maintenance services based in Brazil152
- Water system maintenance services based in Italy145
- Water system maintenance services based in France112
- Water system maintenance services based in the United Kingdom110
- Water system maintenance services based in Germany95
- Water system maintenance services based in Canada87
- Water system maintenance services based in Australia70
- Water system maintenance services based in the Netherlands38
- Water system maintenance services based in Switzerland37
- Water system maintenance services based in Norway29
- Water system maintenance services based in Sweden26
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 water system maintenance 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 water system maintenance services are there worldwide?
RevenueBase identified 2,456 water system maintenance 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?
Trility, headquartered in Adelaide, tops this list with the largest team on record.
Which country has the most water system maintenance services?
The United States leads with 668 companies, followed by Brazil (152) and Italy (145). Every water system maintenance services list by country and city is linked on this page.
Which city has the most water system maintenance services?
Sao Paulo leads with 31 headquartered companies, followed by Rio De Janeiro (11) and Bogota (9).
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 3,700 verified decision-maker contacts tracked across these 2,456 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 22, 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.