Company lists · Data refreshed September 2026

Top 25 Industrial assembly contractors worldwide

Name: Industrial assembly contractors worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 30, 2026 9,542 companies tracked

RevenueBase identified 9,542 industrial assembly contractors worldwide as of September 2026 and tracks 150,971 professional contacts across them, including 28,246 with verified work emails. The United States is the largest market and Sao Paulo the largest hub.

This list covers industrial assembly contractors 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 30, 2026. Country and city lists for industrial assembly contractors 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 30, 2026 86% judged on-target in blind review

9,542Companies

150,971Contacts tracked

28,246Verified emails

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The 25 largest industrial assembly contractors worldwide

Ranked by team size

Top 25 of 9,542 industrial assembly contractors worldwide, ranked by team size, largest first. Data refreshed Sep 30, 2026. RevenueBase Smart Search rates how each company's information relates to industrial assembly contractors: 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	Turner Industries	Partial evidence	Baton Rouge, LA, United StatesHQ checked Sep 30, 2026	10001+	8,018 contacts →
	Partial evidence “Turner Industries provides a single solution in heavy industrial construction, maintenance, turnaround, pipe and module fabrication, equipment, rigging and specialized…” Source: RevenueBase Database · checked Sep 30, 2026
2	Leadec	Indirect evidence	Stuttgart, GermanyHQ checked Sep 30, 2026	10001+	5,127 contacts →
	Indirect evidence “Leadec is the leading global service specialist for factories across their entire life cycle and related infrastructure.” Source: RevenueBase Database · checked Sep 30, 2026
3	Milplan Engenharia	Indirect evidence	Belo Horizonte, BrazilHQ checked Sep 30, 2026	1,001-5,000	3,075 contacts →
	Indirect evidence “A MILPLAN é uma empresa de engenharia, fundada em 1982, atuante no segmento de montagem eletromecânica.” Source: RevenueBase Database · checked Sep 30, 2026
4	Performance Contractors	Strong evidence	Baton Rouge, LA, United StatesHQ checked Sep 30, 2026	1,001-5,000	2,757 contacts →
	Strong evidence “We began as a merit shop general industrial contractor back in 1979.” Source: RevenueBase Database · checked Sep 30, 2026
5	ATS Corporation	Indirect evidence	Cambridge, ON, CanadaHQ checked Sep 30, 2026	5,001-10,000	2,754 contacts →
	Indirect evidence “HELPING ADVANCE THE FUTURE ATS Corporation is an industry-leading automation solutions provider to many of the world's most successful companies.” Source: RevenueBase Database · checked Sep 30, 2026
6	Estrutural	Partial evidence	Porto Alegre, BrazilHQ checked Sep 30, 2026	1,001-5,000	2,461 contacts →
	Partial evidence “Quem somos: Somos uma empresa nacional, com mais de 30 anos no segmento da construção, montagem e manutenção industrial.” Source: RevenueBase Database · checked Sep 30, 2026
7	Grupo Enesa - Main Page	Indirect evidence	Sao Paulo, BrazilHQ checked Sep 30, 2026	1,001-5,000	2,458 contacts →
	Indirect evidence “ENESA Engenharia is a company based on reliability, commitment, ethical standards and important knowledge in constructive engineering solutions, becoming a reference in…” Source: RevenueBase Database · checked Sep 30, 2026
8	Sankyu S.A	Indirect evidence	Belo Horizonte, BrazilHQ checked Sep 30, 2026	1,001-5,000	1,731 contacts →
	Indirect evidence “Fundada em 1972, a SANKYU S.A.” Source: RevenueBase Database · checked Sep 30, 2026
9	Sendan International Company	Partial evidence	Jubail Industrial City, Saudi ArabiaHQ checked Sep 30, 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 30, 2026
10	Parex Engenharia	Partial evidence	Belo Horizonte, BrazilHQ checked Sep 30, 2026	1,001-5,000	1,568 contacts →
	Partial evidence “A PAREX ENGENHARIA é a parceira estratégica no fornecimento de soluções integradas de montagem e construção industrial para a indústria brasileira.” Source: RevenueBase Database · checked Sep 30, 2026
11	Irmãos Passaúra S A	Partial evidence	Curitiba, BrazilHQ checked Sep 30, 2026	1,001-5,000	1,075 contacts →
	Partial evidence “Empresa de Montagem e Manutenção Industrial” Source: RevenueBase Database · checked Sep 30, 2026
12	Convaço	Partial evidence	Ipatinga, BrazilHQ checked Sep 30, 2026	1,001-5,000	981 contacts →
	Partial evidence “Considerada referência na prestação de serviços em engenharia de montagem e manutenção industrial, a CONVAÇO, fundada em julho de 1970, vem expandindo seus negócios nos mais…” Source: RevenueBase Database · checked Sep 30, 2026
13	Infa S.A	Partial evidence	Puerto Madryn, ArgentinaHQ checked Sep 30, 2026	1,001-5,000	702 contacts →
	Partial evidence “Engineering and Construction Mining Industry, Aluminium Smelters Process Industry Infa es una empresa industrial, dedicada a la Ingeniería, Construcción y Montajes Industriales…” Source: RevenueBase Database · checked Sep 30, 2026
14	Planova Planejamento E Construções S A	Indirect evidence	Sao Paulo, BrazilHQ checked Sep 30, 2026	1,001-5,000	686 contacts →
	Indirect evidence “A PLANOVA Planejamento e Construções S.A.” Source: RevenueBase Database · checked Sep 30, 2026
15	Elos Engenharia	Indirect evidence	Salvador, BrazilHQ checked Sep 30, 2026	1,001-5,000	671 contacts →
	Indirect evidence “A Elos Engenharia está sediada no estado da Bahia e atua em todo o território nacional.” Source: RevenueBase Database · checked Sep 30, 2026
16	Rede Montagens Eletromecânicas	Indirect evidence	Betim, BrazilHQ checked Sep 30, 2026	201-500	657 contacts →
	Indirect evidence “A Rede Montagens Eletromecânicas é uma empresa dinâmica, pró-ativa, sempre empenhada no sucesso e evolução dos empreendimentos e seus colaboradores, a fim de proporcionar solução…” Source: RevenueBase Database · checked Sep 30, 2026
17	Footprint Solutions	Partial evidence	Lisle, IL, United StatesHQ checked Sep 30, 2026	1,001-5,000	618 contacts →
	Partial evidence “Footprint Solutions is the leading nationwide provider of comprehensive installation, merchandising, remodel, assembly, and logistics/supply chain services.” Source: RevenueBase Database · checked Sep 30, 2026
18	Southern Industrial Constructors, INC	Partial evidence	Raleigh, NC, United StatesHQ checked Sep 30, 2026	1,001-5,000	569 contacts →
	Partial evidence “Since 1962, Southern Industrial Constructors, Inc.(SIC) has been safely and cost effectively providing industrial construction services to the manufacturing, process and power…” Source: RevenueBase Database · checked Sep 30, 2026
19	Mecbrun Industrial	Partial evidence	Pedro Leopoldo, BrazilHQ checked Sep 30, 2026	501-1,000	548 contacts →
	Partial evidence “A MECBRUN INDUSTRIAL é uma empresa situada no Município de Pedro Leopoldo (10 km do Aeroporto Internacional Tancredo Neves – Confins) – Minas Gerais.” Source: RevenueBase Database · checked Sep 30, 2026
20	Corbins	Strong evidence	Phoenix, AZ, United StatesHQ checked Sep 30, 2026	1,001-5,000	532 contacts →
	Strong evidence “Corbins is an industrial electrical contractor.” Source: RevenueBase Database · checked Sep 30, 2026
21	The State Group	Strong evidence	Franklin, TN, United StatesHQ checked Sep 30, 2026	1,001-5,000	512 contacts →
	Strong evidence “The State Group is one of North America's leading multi-trade industrial and specialty services contractors.” Source: RevenueBase Database · checked Sep 30, 2026
22	Sartori Serviços	Partial evidence	Joao Monlevade, BrazilHQ checked Sep 30, 2026	501-1,000	489 contacts →
	Partial evidence “A Sartori Serviços LTDA é uma empresa que atua no mercado de Fabricação, Montagem e Manutenção Mecânica em complexos Industriais.” Source: RevenueBase Database · checked Sep 30, 2026
23	Stahl Engenharia	Partial evidence	Esteio, BrazilHQ checked Sep 30, 2026	501-1,000	469 contacts →
	Partial evidence “A STAHL é uma empresa especializada em fabricação, montagem e manutenção industrial, com sede em Esteio, região metropolitana de Porto Alegre e área fabril instalada em um espaço…” Source: RevenueBase Database · checked Sep 30, 2026
24	Intecnial S.A	Indirect evidence	Erechim, BrazilHQ checked Sep 30, 2026	1,001-5,000	467 contacts →
	Indirect evidence “INDÚSTRIA DE BENS DE CAPITAL.” Source: RevenueBase Database · checked Sep 30, 2026
25	Fori Automation, LLC A Lincoln Electric Company	Partial evidence	Shelby Twp., MI, United StatesHQ checked Sep 30, 2026	501-1,000	447 contacts →
	Partial evidence “Fori Automation, LLC is a global leader in the design, build, and integration of custom material handling, assembly, testing, and welding systems.” Source: RevenueBase Database · checked Sep 30, 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: industrial assembly contractors. 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 industrial assembly contractors.
Partial evidence: Its own public description names part of industrial assembly contractors, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name industrial assembly contractors. 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 9,542 industrial assembly contractors worldwide

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Industrial assembly contractors worldwide at a glance

As of Sep 30, 2026

18.7%Verified-email coverage

15.8Average contacts per company

11-50Median size (employees)

0.8%Largest-city concentration · Sao Paulo

Sep 30, 2026Page data refreshed

Companies by employee count

1-10

3,257

11-50

3,964

51-200

1,660

201-500

406

501-1,000

101

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 industrial assembly contractors, 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 industrial assembly contractors are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “industrial assembly contractors”. 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 industrial assembly contractors), 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 industrial assembly contractors, 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, 28,246 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 30, 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.

Industrial assembly contractors by location

25 lists · largest first

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

Countries

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 industrial assembly contractors, 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 industrial assembly contractors are there worldwide?

RevenueBase identified 9,542 industrial assembly contractors 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?

Turner Industries, headquartered in Baton Rouge, tops this list with the largest team on record.

Which country has the most industrial assembly contractors?

The United States leads with 1,930 companies, followed by Brazil (1,258) and Italy (843). Every industrial assembly contractors list by country and city is linked on this page.

Which city has the most industrial assembly contractors?

Sao Paulo leads with 77 headquartered companies, followed by Pune (46) and Curitiba (30).

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 28,246 verified decision-maker contacts tracked across these 9,542 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 30, 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.