Company lists · Data refreshed October 2026

Top 25 Mechanical completion contractors worldwide

RevenueBase identified 12,024 company matches for mechanical completion contractors worldwide as of October 2026 and tracks 343,917 professional contacts across them, including 71,064 with verified work emails. The United States is the largest market and Istanbul the largest hub.

This list covers company matches for mechanical completion 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 October 18, 2026. Country and city lists for mechanical completion 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 Oct 18, 2026 How this list was built
12,024Companies
343,917Contacts tracked
71,064Verified emails
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The 25 largest mechanical completion contractors worldwide

Ranked by team size
Top 25 of 12,024 company matches for mechanical completion contractors worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 18, 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 matchMadrid, SpainHQ recorded Oct 18, 202610001+11,378 contacts →

Exact match

“TR is an international general contractor engaged in the engineering and construction of industrial facilities in the fields of-Oil & Gas -Refining & Petrochemical -Power…”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
2Exact matchBaton Rouge, LA, United StatesHQ recorded Oct 18, 202610001+8,282 contacts →

Exact match

“Turner Industries provides a single solution in heavy industrial construction, maintenance, turnaround, pipe and module fabrication, equipment, rigging and specialized…”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
3Exact matchGangdong-gu, South KoreaHQ recorded Oct 18, 20265,001-10,0007,325 contacts →

Exact match

“SAMSUNG E&A is one of the world’s leading engineering, procurement, construction and project management (EPC & PM) companies.”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
4Exact matchSan Antonio, TX, United StatesHQ recorded Oct 18, 202610001+7,053 contacts →

Exact match

“Zachry Group is North America's pacesetter in turnkey engineering, construction, maintenance, turnaround and fabrication services to the energy, chemicals, power, manufacturing…”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
5Exact matchSão Paulo, BrazilHQ recorded Oct 18, 202610001+3,755 contacts →

Exact match

“The Company operates in sundry markets, taking the lead in such sectors as oil & gas production and processing, petrochemicals, power generation, steel production, paper & pulp…”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
6Exact matchHouston, TX, United StatesHQ recorded Oct 18, 20265,001-10,0003,615 contacts →

Exact match

“S&B is an engineer and constructor that designs and builds some of the largest and most complex industrial facilities in the world.”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
7Exact matchBaton Rouge, LA, United StatesHQ recorded Oct 18, 20265,001-10,0003,379 contacts →

Exact match

“At MMR we believe that no matter how much you achieve, you should never forget where you came from.”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
8Exact matchBaton Rouge, LA, United StatesHQ recorded Oct 18, 20261,001-5,0002,920 contacts →

Exact match

“We began as a merit shop general industrial contractor back in 1979.”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
9Exact matchPorto Alegre, BrazilHQ recorded Oct 18, 20261,001-5,0002,795 contacts →

Exact match

“Quem somos: Somos uma empresa nacional, com mais de 30 anos no segmento da construção, montagem e manutenção industrial.”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
10Exact matchSao Paulo, BrazilHQ recorded Oct 18, 20261,001-5,0002,733 contacts →

Exact match

“ENESA Engenharia is a company based on reliability, commitment, ethical standards and important knowledge in constructive engineering solutions, becoming a reference in…”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
11Exact matchPasadena, CA, United StatesHQ recorded Oct 18, 20265,001-10,0002,573 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 · Oct 18, 2026 · View company records in RevenueBase
12Exact matchSão Paulo, BrazilHQ recorded Oct 18, 20261,001-5,0002,354 contacts →

Exact match

“Fundada em 1971, a Montcalm tem como missão, oferecer soluções de engenharia construtiva para implantação, ampliação e manutenção de indústrias de processos, sempre com o…”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
13Exact matchTaipei City, TaiwanHQ recorded Oct 18, 20265,001-10,0002,161 contacts →

Exact match

“CTCI (TWSE: 9933, TPEx: 5209, TPEx: 6803) is a global engineering, procurement, and construction (EPC) services provider.”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
14Exact matchBaton Rouge, LA, United StatesHQ recorded Oct 18, 20265,001-10,0001,969 contacts →

Exact match

“Brown & Root Industrial Services offers the full range of industrial services – engineering, construction, maintenance, turnaround, and specialty (painting, scaffolding…”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
15Exact matchFranceHQ recorded Oct 18, 20265,001-10,0001,900 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
16Exact matchJubail Industrial City, Saudi ArabiaHQ recorded Oct 18, 20265,001-10,0001,887 contacts →

Exact match

“AYTB had recognized the Saudi Dream 45 years ago when the Royal Commission for Jubail and Yanbu was set up with a vision to build a huge petrochemical industry to catapult Saudi…”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
17Exact matchAbu Dhabi, United Arab EmiratesHQ recorded Oct 18, 20261,001-5,0001,695 contacts →

Exact match

“At Robt.”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
18Exact matchHouston, TX, United StatesHQ recorded Oct 18, 20261,001-5,0001,652 contacts →

Exact match

“Founded in 1997, Audubon Companies LLC provides EPC, consulting, fabrication, and field services to energy and industrial operators across the globe.”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
19Exact matchJubail Industrial City, Saudi ArabiaHQ recorded Oct 18, 20261,001-5,0001,485 contacts →

Exact match

“Founded in 1994, Sendan has rapidly grown from a modest contractor to a reputable General Contractor for Plant Construction and Maintenance.”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
20Exact matchNorwalk, CT, United StatesHQ recorded Oct 18, 202610001+1,443 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
21Exact matchThe Woodlands, TX, United StatesHQ recorded Oct 18, 202610001+1,416 contacts →

Exact match

“As a leading construction and maintenance provider, Bilfinger aims to enhance the efficiency of assets and lower operational costs.”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
22Exact matchSan Antonio, TX, United StatesHQ recorded Oct 18, 20261,001-5,0001,403 contacts →

Exact match

“Group, Inc.”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
23Exact matchPune, IndiaHQ recorded Oct 18, 20261,001-5,0001,390 contacts →

Exact match

“TKIL Industries Pvt.”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
24Exact matchDeer Park, TX, United StatesHQ recorded Oct 18, 2026501-1,0001,360 contacts →

Exact match

“Universal Plant Services (UPS) is the industry's foremost specialists in rotating and reciprocating equipment services.”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
25Exact matchHouston, TX, United StatesHQ recorded Oct 18, 202610001+1,354 contacts →

Exact match

“Comfort Systems USA | Quality People.”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase

Showing 25 of 12,024 mechanical completion contractors worldwide

See the full list, filter by size, metro and specialty, and access 71,064 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Mechanical completion contractors worldwide at a glance

As of Oct 18, 2026
20.7%Verified-email coverage
28.6Average contacts per company
11-50Median size (employees)
0.8%Largest-city concentration · Istanbul
Oct 18, 2026Page data refreshed

Companies by employee count

1-10
2,722
11-50
4,728
51-200
2,936
201-500
925
501-1,000
351
1,001-5,000
248
5,001-10,000
36
10001+
19

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 mechanical completion contractors are linked below.
What qualifies
Company records worldwide whose business descriptions match “mechanical completion 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 71,064 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 October 18, 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.

Mechanical completion contractors by location

44 lists · largest first

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

How many mechanical completion contractors are there worldwide?

RevenueBase identified 12,024 company matches for mechanical completion contractors worldwide as of October 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?

Tecnicas Reunidas tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which country has the most mechanical completion contractors?

The United States leads with 2,590 companies, followed by Italy (878) and Brazil (696). Every mechanical completion contractors list by country and city is linked on this page.

Which city has the most mechanical completion contractors?

Istanbul leads with 96 company records, followed by Houston (94) and Tehran (79).

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 71,064 professional contacts with verified work emails tracked across these 12,024 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 October 18, 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.