Company lists · Data refreshed September 2026
Top 25 Water system repair contractors worldwide
RevenueBase identified 5,048 water system repair contractors worldwide as of September 2026 and tracks 22,784 professional contacts across them, including 4,416 with verified work emails and 0 with mobile numbers. The United States is the largest market and New York the largest hub.
This list covers water system repair contractors 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 19, 2026. Country and city lists for water system repair contractors 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 repair contractors worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 368 contacts → | ||||
Partial evidence “Hiller provides residential and commercial service and repair throughout Tennessee, Southern Kentucky, Northern Alabama, Southeastern Arkansas, Northeastern Mississippi, Northern…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 2 | 285 contacts → | ||||
Indirect evidence “American Leak Detection was founded in 1974 and is headquartered in Palm Springs, Calif.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 3 | 266 contacts → | ||||
Indirect evidence “ABC Plumbing, Sewer, Heating, Cooling, and Electric has been a trusted family-owned and operated home service provider for over 70 years.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 4 | 225 contacts → | ||||
Indirect evidence “Morris-Jenkins is like family!” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 5 | 212 contacts → | ||||
Indirect evidence “As a community-oriented company for over 40 years, we put our customers first and stand behind our products and services.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 6 | 199 contacts → | ||||
Strong evidence “My Plumber Plus is the company of choice in Northern Virginia and suburban Maryland for repair and replacement of plumbing, HVAC, and electrical systems.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 7 | 179 contacts → | ||||
Indirect evidence “https://linktr.ee/Rooter.Hero At Rooter Hero Plumbing, we pride ourselves on providing Competitive Pricing, Quality Work and Professional Service on every plumbing appointment.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 8 | 138 contacts → | ||||
Indirect evidence “We offer superior plumbing, air conditioning, and electrical services to Residential and Commercial clients in Houston,TX.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 9 | 127 contacts → | ||||
Indirect evidence “Mr.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 10 | 114 contacts → | ||||
Indirect evidence “Eco Plumbers, Electricians, and HVAC Technicians is your residential plumbing, electrical, heating and cooling company.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 11 | 110 contacts → | ||||
Indirect evidence “We provide professionally managed commercial services to businesses across a variety of industries.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 12 | 109 contacts → | ||||
Partial evidence “DRF Water Heating Solutions mission is to help as many people as we can.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 13 | 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 19, 2026Thanks. The Data Team will review it. | |||||
| 14 | 95 contacts → | ||||
Indirect evidence “Milani has been specializing in servicing the plumbing, drainage and heating needs of commercial and residential clients since 1956.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 15 | 93 contacts → | ||||
Partial evidence “Plumbline Services was founded in Colorado in 1998 on a simple premise to provide pleasant and professional plumbing, water heater, heating, air conditioning, drain cleaning and…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 16 | 80 contacts → | ||||
Indirect evidence “For over 30 years, Delta Mechanical has been a leader in plumbing services.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 17 | 78 contacts → | ||||
Indirect evidence “For over 24 years, our company has been taking care of the homes of New Jersey residents through our top quality plumbing, HVAC, and electrical services.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 18 | 77 contacts → | ||||
Indirect evidence “Dauenhauer Plumbing is Kentucky's largest full service plumbing company, serving residential and commercial customers in both the Louisville and Lexington areas.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 19 | 74 contacts → | ||||
Partial evidence “Mechanical One is a renowned home repair and maintenance service provider in Central Florida, renowned for its high-quality services since launching in 2021.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 20 | 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 19, 2026Thanks. The Data Team will review it. | |||||
| 21 | 70 contacts → | ||||
Indirect evidence “SageWater is the nation’s leading provider of turnkey plumbing and mechanical infrastructure solutions for condominium and apartment communities.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 22 | 66 contacts → | ||||
Indirect evidence “Commercial & Industrial Facility Maintenance Services including: Plumbing, Piping, & Camera Technologies Pipe Relining, Manhole Rehabilitation HVAC, Refrigeration, Building…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 23 | 62 contacts → | ||||
Indirect evidence “We have been setting the standard for professional home service in the Metro Detroit area since 1937.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 24 | 59 contacts → | ||||
Partial evidence “Haddad Plumbing & Heating is one of the leading plumbing and HVAC contractors in the Tri-State Area since We provide comprehensive plumbing and HVAC services to commercial and…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 25 | 58 contacts → | ||||
Indirect evidence “Proudly Serving Central Florida since 1975, we offer a comprehensive array of services for commercial, industrial and residential plumbing customers.” Source: RevenueBase Database · checked Sep 19, 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 repair contractors. 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 repair contractors.
- Partial evidence
- Its own public description names part of water system repair contractors, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name water system repair contractors. 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 5,048 water system repair contractors worldwide
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Water system repair contractors worldwide at a glance
As of Sep 19, 2026Companies by employee count
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 repair contractors, 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
- 11 countries, largest first: the United States, Australia, Canada, France, the United Kingdom, Germany, the Netherlands, Norway, New Zealand, Switzerland and 1 more. Country and city lists for water system repair contractors are linked below.
- What qualifies
- Companies worldwide whose own description of what they do matches “water system repair contractors”. 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 repair contractors), 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 repair contractors, 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, 4,416 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 19, 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 repair contractors by location
15 lists · largest firstEvery Water system repair contractors list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Water system repair contractors based in the United States3,531
- Water system repair contractors based in Australia386
- Water system repair contractors based in Canada310
- Water system repair contractors based in France276
- Water system repair contractors based in the United Kingdom249
- Water system repair contractors based in Germany61
- Water system repair contractors based in Norway58
- Water system repair contractors based in the Netherlands58
- Water system repair contractors based in New Zealand48
- Water system repair contractors based in Switzerland37
- Water system repair contractors based in Sweden34
Cities
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 repair contractors, 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 repair contractors are there worldwide?
RevenueBase identified 5,048 water system repair contractors 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?
Hiller Plumbing, Heating, Cooling & Electrical, headquartered in Nashville, tops this list with the largest team on record.
Which country has the most water system repair contractors?
The United States leads with 3,531 companies, followed by Australia (386) and Canada (310). Every water system repair contractors list by country and city is linked on this page.
Which city has the most water system repair contractors?
New York leads with 41 headquartered companies, followed by London (39) and San Diego (37).
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 4,416 verified decision-maker contacts tracked across these 5,048 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 19, 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.