Company lists · Data refreshed September 2026

Top 25 Commercial plumbing services worldwide

Name: Commercial plumbing services worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 19, 2026 11,364 companies tracked

RevenueBase identified 11,364 commercial plumbing services worldwide as of September 2026 and tracks 58,658 professional contacts across them, including 13,131 with verified work emails. The United States is the largest market and London the largest hub.

This list covers commercial plumbing 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 19, 2026. Country and city lists for commercial plumbing 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.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 19, 2026 86% judged on-target in blind review

11,364Companies

58,658Contacts tracked

13,131Verified emails

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The 25 largest commercial plumbing services worldwide

Ranked by team size

Top 25 of 11,364 commercial plumbing services worldwide, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to commercial plumbing services: 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Horizon Services, LLC	Partial evidence	Wilmington, DE, United StatesHQ checked Sep 19, 2026	501-1,000	448 contacts →
	Partial evidence “Horizon Services is the premier heating, air conditioning, plumbing, drain cleaning and sewer services company in Delaware (New Castle County & Kent County), Pennsylvania…” Source: RevenueBase Database · checked Sep 19, 2026
2	Hiller Plumbing, Heating, Cooling & Electrical	Partial evidence	Nashville, TN, United StatesHQ checked Sep 19, 2026	501-1,000	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, 2026
3	United Mechanical	Strong evidence	San Jose, CA, United StatesHQ checked Sep 19, 2026	201-500	346 contacts →
	Strong evidence “United Mechanical specializes in HVAC and Plumbing systems design, construction, retrofit, repair, and 24/7 emergency service for commercial and industrial properties throughout…” Source: RevenueBase Database · checked Sep 19, 2026
4	DH	Indirect evidence	Istanbul, TürkiyeHQ checked Sep 19, 2026	n/a	263 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 19, 2026
5	Morris-Jenkins	Indirect evidence	Charlotte, NC, United StatesHQ checked Sep 19, 2026	501-1,000	225 contacts →
	Indirect evidence “Morris-Jenkins is like family!” Source: RevenueBase Database · checked Sep 19, 2026
6	Shapiro & Duncan, INC	Partial evidence	Rockville, MD, United StatesHQ checked Sep 19, 2026	201-500	225 contacts →
	Partial evidence “Shapiro and Duncan is a full service Plumbing and HVAC construction company based in Rockville, Maryland since 1976.” Source: RevenueBase Database · checked Sep 19, 2026
7	F.H. Furr Plumbing, Heating, AIR Conditioning, & Electrical	Indirect evidence	Manassas, VA, United StatesHQ checked Sep 19, 2026	501-1,000	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, 2026
8	R.T. Moore	Indirect evidence	Indianapolis, IN, United StatesHQ checked Sep 19, 2026	501-1,000	193 contacts →
	Indirect evidence “For 70 years, family owned and operated R.T.” Source: RevenueBase Database · checked Sep 19, 2026
9	Haller Enterprises	Partial evidence	Lititz, PA, United StatesHQ checked Sep 19, 2026	201-500	191 contacts →
	Partial evidence “Since 1981, Haller Enterprises has proudly served central and eastern Pennsylvania as a leader in heating, cooling, plumbing, and electrical services.” Source: RevenueBase Database · checked Sep 19, 2026
10	L&s Mechanical	Indirect evidence	Richardson, TX, United StatesHQ checked Sep 19, 2026	501-1,000	186 contacts →
	Indirect evidence “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.” Source: RevenueBase Database · checked Sep 19, 2026
11	Sack Company	Partial evidence	Statesboro, GA, United StatesHQ checked Sep 19, 2026	501-1,000	184 contacts →
	Partial evidence “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…” Source: RevenueBase Database · checked Sep 19, 2026
12	Comfort Systems USA Southeast	Strong evidence	Pensacola, FL, United StatesHQ checked Sep 19, 2026	201-500	180 contacts →
	Strong evidence “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.” Source: RevenueBase Database · checked Sep 19, 2026
13	Goyette Mechanical	Partial evidence	Flint, MI, United StatesHQ checked Sep 19, 2026	201-500	180 contacts →
	Partial evidence “Founded in 1928, Goyette Mechanical is an industry leader in construction and design-build projects throughout the United States and one of the largest plumbing and HVAC…” Source: RevenueBase Database · checked Sep 19, 2026
14	Rooter Hero Plumbing & AIR	Partial evidence	Los Angeles, CA, United StatesHQ checked Sep 19, 2026	201-500	179 contacts →
	Partial 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, 2026
15	LEN The Plumber Heating & AIR	Partial evidence	Baltimore, MD, United StatesHQ checked Sep 19, 2026	201-500	175 contacts →
	Partial evidence “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.” Source: RevenueBase Database · checked Sep 19, 2026
16	LEE Supply Corp	Partial evidence	Indianapolis, IN, United StatesHQ checked Sep 19, 2026	51-200	165 contacts →
	Partial evidence “Lee Supply has been in the Plumbing and HVAC Supply business since 1949.” Source: RevenueBase Database · checked Sep 19, 2026
17	Precision Plumbing	Partial evidence	Matthews, NC, United StatesHQ checked Sep 19, 2026	201-500	156 contacts →
	Partial evidence “Precision Plumbing’s inception in 1981 was born out of a desire to be business entrepreneurs and to bring a level of quality and service unmatched in our industry.” Source: RevenueBase Database · checked Sep 19, 2026
18	Hoffmann Brothers	Indirect evidence	St Louis, MO, United StatesHQ checked Sep 19, 2026	501-1,000	153 contacts →
	Indirect evidence “About Hoffmann Brothers We are on a mission to Improve Life in Every Home.” Source: RevenueBase Database · checked Sep 19, 2026
19	WAY Mechanical	Indirect evidence	Irving, TX, United StatesHQ checked Sep 19, 2026	501-1,000	144 contacts →
	Indirect evidence “Way Mechanical is a mechanical contractor located in Austin, Dallas, Fort Worth, Houston, Nashville, and San Antonio.” Source: RevenueBase Database · checked Sep 19, 2026
20	Abacus Plumbing, AIR Conditioning & Electrical	Strong evidence	Houston, TX, United StatesHQ checked Sep 19, 2026	201-500	138 contacts →
	Strong evidence “We offer superior plumbing, air conditioning, and electrical services to Residential and Commercial clients in Houston,TX.” Source: RevenueBase Database · checked Sep 19, 2026
21	Speer Mechanical	Partial evidence	Columbus, OH, United StatesHQ checked Sep 19, 2026	201-500	119 contacts →
	Partial evidence “Serving central Ohio Since 1927, Speer Mechanical offers design, fabrication, installation and maintenance services for: HVAC systems, plumbing, process piping, sheet metal, and…” Source: RevenueBase Database · checked Sep 19, 2026
22	The PAR Group	Partial evidence	New York, NY, United StatesHQ checked Sep 19, 2026	201-500	117 contacts →
	Partial evidence “The PAR Group, privately owned and operated since 1917, is New York's preeminent provider of Plumbing, Heating & Air Conditioning, Fire Protection and Green Solutions services.” Source: RevenueBase Database · checked Sep 19, 2026
23	ECO Plumbers, Electricians, And Hvac Technicians	Partial evidence	Hilliard, OH, United StatesHQ checked Sep 19, 2026	201-500	114 contacts →
	Partial evidence “Eco Plumbers, Electricians, and HVAC Technicians is your residential plumbing, electrical, heating and cooling company.” Source: RevenueBase Database · checked Sep 19, 2026
24	Iron Mechanical	Partial evidence	Sacramento, CA, United StatesHQ checked Sep 19, 2026	201-500	113 contacts →
	Partial evidence “We specialize in providing HVAC, plumbing, and piping design and installation services across the state of California.” Source: RevenueBase Database · checked Sep 19, 2026
25	Drain Doctor	Partial evidence	Brackley, United KingdomHQ checked Sep 19, 2026	51-200	110 contacts →
	Partial evidence “We provide professionally managed commercial services to businesses across a variety of industries.” Source: RevenueBase Database · checked Sep 19, 2026

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: commercial plumbing 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 commercial plumbing services.
Partial evidence: Its own public description names part of commercial plumbing services, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name commercial plumbing 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 11,364 commercial plumbing services worldwide

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Commercial plumbing services worldwide at a glance

As of Sep 19, 2026

22.4%Verified-email coverage

5.2Average contacts per company

1-10Median size (employees)

0.8%Largest-city concentration · London

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

6,345

11-50

3,683

51-200

931

201-500

112

501-1,000

1,001-5,000

5,001-10,000

10001+

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 commercial plumbing 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 commercial plumbing services are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “commercial plumbing 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 commercial plumbing 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 commercial plumbing 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, 13,131 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.

Commercial plumbing services by location

30 lists · largest first

Every Commercial plumbing services 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 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 commercial plumbing 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 commercial plumbing services are there worldwide?

RevenueBase identified 11,364 commercial plumbing 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?

Horizon Services, LLC, headquartered in Wilmington, tops this list with the largest team on record.

Which country has the most commercial plumbing services?

The United States leads with 5,949 companies, followed by the United Kingdom (708) and Canada (693). Every commercial plumbing services list by country and city is linked on this page.

Which city has the most commercial plumbing services?

London leads with 87 headquartered companies, followed by Houston (68) and New York (66).

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 13,131 verified decision-maker contacts tracked across these 11,364 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.