Company lists · Data refreshed November 2026

Top 25 Plumbing and water system contractors worldwide

RevenueBase identified 10,157 company matches for plumbing and water system contractors worldwide as of November 2026 and tracks 65,133 professional contacts across them, including 16,341 with verified work emails. The United States is the largest market and London the largest hub.

This list covers company matches for plumbing and water system contractors worldwide, 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. Country and city lists for plumbing and water system contractors follow the table.

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
10,157Companies
65,133Contacts tracked
16,341Verified emails
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The 25 largest plumbing and water system contractors worldwide

Ranked by team size
Top 25 of 10,157 company matches for plumbing and water system contractors worldwide, 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 matchHouston, IN, United StatesHQ recorded Nov 6, 202610001+1,407 contacts →

Exact match

“Comfort Systems USA | Quality People.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchSt. Louis, MO, United StatesHQ recorded Nov 6, 20261,001-5,000598 contacts →

Exact match

“Per Colorado State Law Our CO Plumbing Contractor License Our Master Plumbing License is MP.03001288.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchSugar Land, TX, United StatesHQ recorded Nov 6, 20261,001-5,000475 contacts →

Exact match

“IES Residential, Inc.(IESR) is one of the nation's largest and most respected providers of electrical, plumbing, and HVAC solutions, exclusively serving homebuilders who…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchRiyadh, Saudi ArabiaHQ recorded Nov 6, 20261,001-5,000358 contacts →

Exact match

“Established in 1964, Abdullah Ibrahim Al Sayegh and Sons Company a Closed Joint Stock Co.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchSan Jose, CA, United StatesHQ recorded Nov 6, 2026201-500350 contacts →

Exact match

“United Mechanical specializes in HVAC and Plumbing systems design, construction, retrofit, repair, and 24/7 emergency service for commercial and industrial properties throughout…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchGrand Rapids, MI, United StatesHQ recorded Nov 6, 2026501-1,000335 contacts →

Exact match

“Etna Supply is a family of companies committed to providing the essential products, expertise, and support that keep water moving and businesses running.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchThree Lakes, WI, United StatesHQ recorded Nov 6, 2026n/a325 contacts →

Exact match

“Plumber™ exclusively serves residential and commercial plumbing contractors and franchisees providing everything from repair work and pipe rehabilitation to water conditioning and…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchJacksonville, FL, United StatesHQ recorded Nov 6, 20261,001-5,000320 contacts →

Exact match

“Since 1962, our mission has always been to deliver unparalleled service to our clients.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchLouisville, KY, United StatesHQ recorded Nov 6, 2026201-500320 contacts →

Exact match

“For over 90 years, Plumbers Supply Co.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchHighland Park, MI, United StatesHQ recorded Nov 6, 20261,001-5,000313 contacts →

Exact match

“In 1909, John E.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchMinneapolis, SD, United StatesHQ recorded Nov 6, 2026501-1,000300 contacts →

Exact match

“Goodin Company is a wholesale distributor of products for residential and commercial plumbing, HVAC/R, waterworks, industrial and mechanical piping systems.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchBellevue, UT, United StatesHQ recorded Nov 6, 2026501-1,000288 contacts →

Exact match

“HD Fowler Company is one of the oldest and largest independent, fourth-generation family-owned distributors of waterworks, irrigation and landscape, pumps, mechanical, and…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchCharlotte, NC, United StatesHQ recorded Nov 6, 2026501-1,000258 contacts →

Exact match

“Morris-Jenkins is like family!”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchIndianapolis, IN, United StatesHQ recorded Nov 6, 2026501-1,000211 contacts →

Exact match

“For 70 years, family owned and operated R.T.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchRichardson, TX, United StatesHQ recorded Nov 6, 2026501-1,000202 contacts →

Exact match

“L&S Mechanical began as a Dallas-based contractor in 1985 and has grown over the years to have six locations out of Dallas, Fort Worth, Houston, San Antonio, and Austin.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchStatesboro, GA, United StatesHQ recorded Nov 6, 2026501-1,000197 contacts →

Exact match

“With offices in Statesboro, GA, Savannah, GA, Atlanta, GA, Charlotte, NC, and Lexington, SC, The Sack Company is one of the largest industrial mechanical, electrical, plumbing…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchHouston, TX, United StatesHQ recorded Nov 6, 2026201-500195 contacts →

Exact match

“Founded in 1976, ACT brings strong experience to your project, no matter the size or location.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchLongwood, FL, United StatesHQ recorded Nov 6, 2026201-500195 contacts →

Exact match

“Founded in 1992, Comprehensive Energy Services, Inc.(CES) is a family-owned and operated, award-winning mechanical and plumbing contractor proudly serving the entire state of…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchPensacola, GA, United StatesHQ recorded Nov 6, 2026201-500188 contacts →

Exact match

“Comfort Systems USA Southeast is one of the largest commercial mechanical an plumbing contractors and service providers executing 150M+ in revenue annually across the southeast.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchFayetteville, AR, United StatesHQ recorded Nov 6, 2026501-1,000186 contacts →

Exact match

“Kimbel Mechanical Systems, Inc.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchLos Angeles, CA, United StatesHQ recorded Nov 6, 2026201-500185 contacts →

Exact match

“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.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchBaltimore, MD, United StatesHQ recorded Nov 6, 2026201-500183 contacts →

Exact match

“Len The Plumber Heating & Air is a leading home services provider delivering trusted plumbing, heating, cooling, and air quality solutions across the Mid-Atlantic region.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchIndianapolis, IN, United StatesHQ recorded Nov 6, 202651-200175 contacts →

Exact match

“Lee Supply has been in the Plumbing and HVAC Supply business since 1949.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchAlbuquerque, NM, United StatesHQ recorded Nov 6, 2026501-1,000170 contacts →

Exact match

“TLC Plumbing is a different kind of company, and our intent is to stay different in a good way.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchAjman, United Arab EmiratesHQ recorded Nov 6, 2026201-500168 contacts →

Exact match

“Moalajah is a leading company providing water and waste-water services to its clients in UAE.”

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

Showing 25 of 10,157 plumbing and water system contractors worldwide

See the full list, filter by size, metro and specialty, and access 16,341 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Plumbing and water system contractors worldwide at a glance

As of Nov 6, 2026
25.1%Verified-email coverage
6.4Average contacts per company
1-10Median size (employees)
0.6%Largest-city concentration · London
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
5,198
11-50
3,515
51-200
909
201-500
126
501-1,000
41
1,001-5,000
15
5,001-10,000
3
10001+
5

Email recency is reported on each country list linked below.

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.
Coverage
Every country. Country and city lists for plumbing and water system contractors are linked below.
What qualifies
Company records worldwide whose business descriptions match “plumbing and water system contractors” 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. 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 16,341 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.

Plumbing and water system contractors by location

34 lists · largest first

Every Plumbing and water system contractors list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

Cities

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 “plumbing and water system contractors”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many plumbing and water system contractors are there worldwide?

RevenueBase identified 10,157 company matches for plumbing and water system contractors worldwide 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?

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

Which country has the most plumbing and water system contractors?

The United States leads with 4,627 companies, followed by Australia (579) and the United Kingdom (535). Every plumbing and water system contractors list by country and city is linked on this page.

Which city has the most plumbing and water system contractors?

London leads with 60 company records, followed by Houston (55) and Sydney (51).

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 16,341 professional contacts with verified work emails tracked across these 10,157 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.