Company lists · Data refreshed November 2026

Top 25 Plumbing and mechanical contractors worldwide

RevenueBase identified 11,734 company matches for plumbing and mechanical contractors worldwide as of November 2026 and tracks 139,958 professional contacts across them, including 45,855 with verified work emails. The United States is the largest market and New York the largest hub.

This list covers company matches for plumbing and mechanical 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 mechanical 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
11,734Companies
139,958Contacts tracked
45,855Verified emails
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The 25 largest plumbing and mechanical contractors worldwide

Ranked by team size
Top 25 of 11,734 company matches for plumbing and mechanical 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 matchPasadena, CA, United StatesHQ recorded Nov 6, 20265,001-10,0002,633 contacts →

Exact match

“Since 1934, owners and builders have selected ACCO Engineered Systems to design, install, and maintain more than mechanical projects.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact 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
3Exact matchAtlanta, NC, United StatesHQ recorded Nov 6, 20261,001-5,0001,143 contacts →

Exact match

“McKenney’s is the Southeast’s most trusted name in facility construction, operation and maintenance.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchSt. Paul, ID, United StatesHQ recorded Nov 6, 20261,001-5,0001,055 contacts →

Exact match

“Harris is a leading national mechanical contractor specializing in design and engineering, construction, controls, service, manufacturing, conveyors and end-to-end building…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchLouisville, TN, United StatesHQ recorded Nov 6, 2026501-1,0001,049 contacts →

Exact match

“CMTA is part of Legence, a Nasdaq Listed company.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchFond Du Lac, WI, United StatesHQ recorded Nov 6, 20261,001-5,000915 contacts →

Exact match

“Ahern is a mechanical and fire protection contractor specializing in HVAC, Plumbing, Building Controls, Sprinkler, Extinguisher & Alarm and Fabrication for construction and…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchAnkeny, IA, United StatesHQ recorded Nov 6, 20261,001-5,000731 contacts →

Exact match

“Established in 1963, Baker Group is Iowa’s premier full-service specialty contractor-serving commercial, industrial, institutional, and mission-critical markets across the country.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchKennewick, WA, United StatesHQ recorded Nov 6, 20261,001-5,000730 contacts →

Exact match

“Apollo is based in Kennewick, Washington, performing Full Mechanical projects across the United States and around the world.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchNorthbrook, IL, United StatesHQ recorded Nov 6, 20261,001-5,000606 contacts →

Exact match

“At F.E.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchRancho Dominguez, CA, United StatesHQ recorded Nov 6, 20261,001-5,000604 contacts →

Exact match

“Proven experience in conjunction with fully-equipped fabrication facilities and extensive engineering expertise.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact 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
12Exact matchRichmond, VA, United StatesHQ recorded Nov 6, 20261,001-5,000595 contacts →

Exact match

“ColonialWebb is built on a simple belief: when people feel like they belong and have a purpose, they can achieve almost anything.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchDubai, United Arab EmiratesHQ recorded Nov 6, 20265,001-10,000592 contacts →

Exact match

“EFECO is one of the UAE's principal MEP services provider, delivering innovative, high quality, life-cycle solutions for our customers.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchIndianapolis, IN, United StatesHQ recorded Nov 6, 20261,001-5,000553 contacts →

Exact match

“DEEM, LLC is a mechanical and electrical company centrally located in Fishers, Indiana with satellite offices throughout the Midwest down to the southeastern United States.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchLongview, WA, United StatesHQ recorded Nov 6, 2026501-1,000535 contacts →

Exact match

“JH Kelly is a fourth generation, family-owned construction company that provides HVAC and plumbing services to commercial facility owners and acts as a self-performing industrial…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchLivermore, CA, United StatesHQ recorded Nov 6, 20261,001-5,000491 contacts →

Exact match

“Founded in 1973, Kinetics is a full-service process and mechanical contractor specializing in the design and installation of process, mechanical, plumbing and HVAC systems.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchFountain Valley, CA, United StatesHQ recorded Nov 6, 2026501-1,000475 contacts →

Exact match

“Founded in 1947 - Pan-Pacific Mechanical, our "Mission is to be the best Plumbing and Mechanical subcontractor in California and the West by delivering exceptional customer…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact 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
19Exact matchWilmington, MD, United StatesHQ recorded Nov 6, 2026501-1,000472 contacts →

Exact match

“Horizon Services is the premier heating, air conditioning, plumbing, drain cleaning and sewer services company in Delaware (New Castle County & Kent County), Pennsylvania…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchSan Diego, CA, United StatesHQ recorded Nov 6, 2026501-1,000450 contacts →

Exact match

“At Pacific Rim Mechanical, we deliver comprehensive mechanical contracting and facility services across Southern California.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchGahanna, OH, United StatesHQ recorded Nov 6, 20261,001-5,000444 contacts →

Exact match

“The Romanoff Group of Companies has been dedicated to providing specialized electrical, plumbing, and heating and cooling services since 1992.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchNew Al Mirqab, QatarHQ recorded Nov 6, 20261,001-5,000437 contacts →

Exact match

“Arabian MEP Contracting L.L.C is a GRADE-A & ISO Certified Company, approved by Kahrama for Electrical Works and QCDD for Fire Fighting and Fire Protection Systems.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchTonawanda, NY, United StatesHQ recorded Nov 6, 2026501-1,000420 contacts →

Exact match

“We are powered by the best people in the industry.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchKent, WA, United StatesHQ recorded Nov 6, 2026201-500409 contacts →

Exact match

“Hermanson Company is a full-service mechanical contractor delivering high-quality sheet metal, piping, and plumbing systems for complex, high-performance environments.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchDubai, United Arab EmiratesHQ recorded Nov 6, 20261,001-5,000379 contacts →

Exact match

“Incorporated in Dubai in 1978 by Decree of H.H.”

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

Showing 25 of 11,734 plumbing and mechanical contractors worldwide

See the full list, filter by size, metro and specialty, and access 45,855 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Plumbing and mechanical contractors worldwide at a glance

As of Nov 6, 2026
32.8%Verified-email coverage
11.9Average contacts per company
11-50Median size (employees)
0.6%Largest-city concentration · New York
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
4,790
11-50
4,434
51-200
1,761
201-500
313
501-1,000
109
1,001-5,000
53
5,001-10,000
6
10001+
3

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 mechanical contractors are linked below.
What qualifies
Company records worldwide whose business descriptions match “plumbing and mechanical 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 45,855 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 mechanical contractors by location

38 lists · largest first

Every Plumbing and mechanical 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 mechanical contractors”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many plumbing and mechanical contractors are there worldwide?

RevenueBase identified 11,734 company matches for plumbing and mechanical 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?

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

Which country has the most plumbing and mechanical contractors?

The United States leads with 6,145 companies, followed by Canada (813) and France (594). Every plumbing and mechanical contractors list by country and city is linked on this page.

Which city has the most plumbing and mechanical contractors?

New York leads with 69 company records, followed by Houston (64) and London (60).

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 45,855 professional contacts with verified work emails tracked across these 11,734 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.