Company lists · Data refreshed September 2026

Top 25 Mechanical contractors for energy worldwide

Name: Mechanical contractors for energy worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 21,122 companies tracked

RevenueBase identified 21,122 mechanical contractors for energy worldwide as of September 2026 and tracks 376,779 professional contacts across them, including 102,352 with verified work emails and 0 with mobile numbers. The United States is the largest market and Dubai the largest hub.

This list covers mechanical contractors for energy 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 17, 2026. Country and city lists for mechanical contractors for energy 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 17, 2026 86% judged on-target in blind review

21,122Companies

376,779Contacts tracked

102,352Verified emails

0Mobile numbers

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The 25 largest mechanical contractors for energy worldwide

Ranked by team size

Top 25 of 21,122 mechanical contractors for energy worldwide, ranked by team size, largest first. Data refreshed Sep 17, 2026. RevenueBase Smart Search rates how each company's information relates to mechanical contractors for energy: 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	Zachry Group	Partial evidence	San Antonio, TX, United StatesHQ checked Sep 17, 2026	10001+	6,824 contacts →
	Partial evidence “Zachry Group is North America's pacesetter in turnkey engineering, construction, maintenance, turnaround and fabrication services to the energy, chemicals, power, manufacturing…” Source: RevenueBase Database · checked Sep 17, 2026
2	Equans Belux	Indirect evidence	Brussels, BelgiumHQ checked Sep 17, 2026	5,001-10,000	5,297 contacts →
	Indirect evidence “What if you could use your talent to contribute to the great challenges of tomorrow?” Source: RevenueBase Database · checked Sep 17, 2026
3	FTI	Partial evidence	Menasha, WI, United StatesHQ checked Sep 17, 2026	1,001-5,000	2,741 contacts →
	Partial evidence “Faith Technologies Incorporated (FTI) is a dynamic organization comprised of construction, engineering, manufacturing and renewable energy experts.” Source: RevenueBase Database · checked Sep 17, 2026
4	Acco Engineered Systems	Partial evidence	Pasadena, CA, United StatesHQ checked Sep 17, 2026	5,001-10,000	2,415 contacts →
	Partial evidence “Since 1934, owners and builders have selected ACCO Engineered Systems to design, install, and maintain more than mechanical projects.” Source: RevenueBase Database · checked Sep 17, 2026
5	NAES	Indirect evidence	Issaquah, WA, United StatesHQ checked Sep 17, 2026	1,001-5,000	1,956 contacts →
	Indirect evidence “NAES is the power generation industry’s largest independent services provider, with more than 40 years of experience managing risk and turning it into profits.” Source: RevenueBase Database · checked Sep 17, 2026
6	Brown & Root Industrial Services, LLC	Indirect evidence	Baton Rouge, LA, United StatesHQ checked Sep 17, 2026	5,001-10,000	1,940 contacts →
	Indirect evidence “Brown & Root Industrial Services offers the full range of industrial services – engineering, construction, maintenance, turnaround, and specialty (painting, scaffolding…” Source: RevenueBase Database · checked Sep 17, 2026
7	Rotary Engineering	Partial evidence	SingaporeHQ checked Sep 17, 2026	5,001-10,000	1,841 contacts →
	Partial evidence “Founded 1972 in Singapore, Rotary Engineering is your Strategic Energy Partner providing Integrated Infrastructure Solutions with a sustainability focus.” Source: RevenueBase Database · checked Sep 17, 2026
8	Groupe Ponticelli Frères	Partial evidence	FranceHQ checked Sep 17, 2026	5,001-10,000	1,829 contacts →
	Partial evidence “The Ponticelli Frères Group is one of the main European service suppliers to companies in the energy (oil and gas, nuclear, renewable energy), industrial (chemical, steelworks…” Source: RevenueBase Database · checked Sep 17, 2026
9	Sendan International Company	Partial evidence	Jubail Industrial City, Saudi ArabiaHQ checked Sep 17, 2026	1,001-5,000	1,595 contacts →
	Partial evidence “Founded in 1994, Sendan has rapidly grown from a modest contractor to a reputable General Contractor for Plant Construction and Maintenance.” Source: RevenueBase Database · checked Sep 17, 2026
10	Modern Niagara	Indirect evidence	Kanata, ON, CanadaHQ checked Sep 17, 2026	1,001-5,000	1,556 contacts →
	Indirect evidence “We build for life.” Source: RevenueBase Database · checked Sep 17, 2026
11	Audubon Companies	Partial evidence	Houston, TX, United StatesHQ checked Sep 17, 2026	1,001-5,000	1,488 contacts →
	Partial evidence “Founded in 1997, Audubon Companies LLC provides EPC, consulting, fabrication, and field services to energy and industrial operators across the globe.” Source: RevenueBase Database · checked Sep 17, 2026
12	Kirby Group Engineering	Strong evidence	Limerick, IrelandHQ checked Sep 17, 2026	1,001-5,000	1,486 contacts →
	Strong evidence “Founded in 1964, Kirby is a leading Mechanical and Electrical engineering contractor with operations in Ireland, the UK, mainland Europe and South Africa.” Source: RevenueBase Database · checked Sep 17, 2026
13	Bilfinger North America	Indirect evidence	The Woodlands, TX, United StatesHQ checked Sep 17, 2026	10001+	1,400 contacts →
	Indirect evidence “As a leading construction and maintenance provider, Bilfinger aims to enhance the efficiency of assets and lower operational costs.” Source: RevenueBase Database · checked Sep 17, 2026
14	Emcor Group, INC	Strong evidence	Norwalk, CT, United StatesHQ checked Sep 17, 2026	10001+	1,383 contacts →
	Strong evidence “A Fortune 500® company and a member of the S&P 500, EMCOR Group, Inc.(NYSE: EME) is a leader in mechanical and electrical construction, industrial and energy infrastructure, and…” Source: RevenueBase Database · checked Sep 17, 2026
15	NPL Construction CO	Partial evidence	Phoenix, AZ, United StatesHQ checked Sep 17, 2026	5,001-10,000	1,358 contacts →
	Partial evidence “NPL is a nationally recognized leader in energy infrastructure construction, with 50 years of experience.” Source: RevenueBase Database · checked Sep 17, 2026
16	Dragados Offshore	Indirect evidence	11510 Puerto Real, SpainHQ checked Sep 17, 2026	1,001-5,000	1,348 contacts →
	Indirect evidence “Founded in 1972, Dragados Offshore S.A.” Source: RevenueBase Database · checked Sep 17, 2026
17	Comfort Systems USA	Indirect evidence	Houston, TX, United StatesHQ checked Sep 17, 2026	10001+	1,330 contacts →
	Indirect evidence “Comfort Systems USA \| Quality People.” Source: RevenueBase Database · checked Sep 17, 2026
18	Macdonald-Miller Facility Solutions	Strong evidence	Seatac, WA, United StatesHQ checked Sep 17, 2026	1,001-5,000	1,303 contacts →
	Strong evidence “MacDonald-Miller Facility Solutions is a full-service, design-build mechanical contractor in the Pacific Northwest.” Source: RevenueBase Database · checked Sep 17, 2026
19	Bravida Danmark A S	Indirect evidence	Brøndby, DenmarkHQ checked Sep 17, 2026	1,001-5,000	1,298 contacts →
	Indirect evidence “Bravida Danmark er blandt landets største tekniske installations- og servicevirksomheder med over medarbejdere i byer landet over, og vi er en arbejdsplads, der har plads til alle.” Source: RevenueBase Database · checked Sep 17, 2026
20	Tkil Industries	Indirect evidence	Pune, IndiaHQ checked Sep 17, 2026	1,001-5,000	1,296 contacts →
	Indirect evidence “TKIL Industries Pvt.” Source: RevenueBase Database · checked Sep 17, 2026
21	Strike	Partial evidence	Spring, TX, United StatesHQ checked Sep 17, 2026	1,001-5,000	1,155 contacts →
	Partial evidence “Strike safely and reliably delivers the specialized asset maintenance, construction, and contracting services that are business-critical to the energy, chemical, manufacturing…” Source: RevenueBase Database · checked Sep 17, 2026
22	Mckenney's, INC	Indirect evidence	Atlanta, GA, United StatesHQ checked Sep 17, 2026	1,001-5,000	1,077 contacts →
	Indirect evidence “McKenney’s is the Southeast’s most trusted name in facility construction, operation and maintenance.” Source: RevenueBase Database · checked Sep 17, 2026
23	Irmãos Passaúra S A	Indirect evidence	Curitiba, BrazilHQ checked Sep 17, 2026	1,001-5,000	1,075 contacts →
	Indirect evidence “Empresa de Montagem e Manutenção Industrial” Source: RevenueBase Database · checked Sep 17, 2026
24	MKS Soluções Integradas S.A	Indirect evidence	Camaçari, BrazilHQ checked Sep 17, 2026	501-1,000	1,012 contacts →
	Indirect evidence “No mercado desde 1994, somos uma empresa que oferece soluções integradas de engenharia nas áreas de manutenção, construção e montagem eletromecânica e serviços especializados de…” Source: RevenueBase Database · checked Sep 17, 2026
25	Harris	Strong evidence	St Paul, MN, United StatesHQ checked Sep 17, 2026	1,001-5,000	982 contacts →
	Strong evidence “Harris is a leading national mechanical contractor specializing in design and engineering, construction, controls, service, manufacturing, conveyors and end-to-end building…” Source: RevenueBase Database · checked Sep 17, 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: mechanical contractors for energy. 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 mechanical contractors for energy.
Partial evidence: Its own public description names part of mechanical contractors for energy, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name mechanical contractors for energy. 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 21,122 mechanical contractors for energy worldwide

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Mechanical contractors for energy worldwide at a glance

As of Sep 17, 2026

27.2%Verified-email coverage

17.8Average contacts per company

11-50Median size (employees)

1.1%Largest-city concentration · Dubai

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

7,070

11-50

8,493

51-200

3,778

201-500

943

501-1,000

308

1,001-5,000

217

5,001-10,000

10001+

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 mechanical contractors for energy, 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: 44 countries, largest first: the United States, Italy, the United Kingdom, France, Canada, Türkiye, Germany, Brazil, India, Spain and 34 more. Country and city lists for mechanical contractors for energy are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “mechanical contractors for energy”. 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 mechanical contractors for energy), 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 mechanical contractors for energy, 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, 102,352 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 17, 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.

Mechanical contractors for energy by location

78 lists · largest first

Every Mechanical contractors for energy 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 mechanical contractors for energy, 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 mechanical contractors for energy are there worldwide?

RevenueBase identified 21,122 mechanical contractors for energy 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?

Zachry Group, headquartered in San Antonio, tops this list with the largest team on record.

Which country has the most mechanical contractors for energy?

The United States leads with 6,931 companies, followed by Italy (1,444) and the United Kingdom (1,418). Every mechanical contractors for energy list by country and city is linked on this page.

Which city has the most mechanical contractors for energy?

Dubai leads with 228 headquartered companies, followed by Istanbul (163) and Sao Paulo (139).

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 102,352 verified decision-maker contacts tracked across these 21,122 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 17, 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.