Company lists · Data refreshed September 2026

Top 9 Industrial manufacturers based in Diadema, Brazil

RevenueBase identified 33 industrial manufacturers headquartered in Diadema, Brazil as of September 2026 and tracks 413 professional contacts across them, including 54 with verified work emails. Sao Paulo is the largest hub.

This list covers industrial manufacturers headquartered in Diadema, Brazil, 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.

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
33Companies
413Contacts tracked
54Verified emails
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The 9 largest industrial manufacturers based in Diadema, Brazil

Ranked by team size
Top 9 of 33 industrial manufacturers based in Diadema, Brazil, ranked by team size, largest first. Data refreshed Sep 17, 2026. RevenueBase Smart Search rates how each company's information relates to industrial manufacturers: 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Partial evidenceDiadema, BrazilHQ checked Sep 17, 2026n/a74 contacts →

Partial evidence

“Mastermag Industria E Comercio De Pecas Automotivas is an automotive company based out of Avenida Sete de Setembro 919, Diadema, São Paulo, Brazil.”

Source: RevenueBase Database · checked Sep 17, 2026
2Partial evidenceDiadema, BrazilHQ checked Sep 17, 202651-20070 contacts →

Partial evidence

“Como parte do grupo Tünkers, somos líderes no mercado de automação industrial no segmento automotivo, pioneiros na tecnologia de cravação e extração de estacas pranchas com…”

Source: RevenueBase Database · checked Sep 17, 2026
3Partial evidenceDiadema, BrazilHQ checked Sep 17, 202651-20040 contacts →

Partial evidence

“Fabricamos Equipamentos para Instalações Elétricas em Áreas Classificadas com Atmosferas Explosivas ou de uso Industrial.”

Source: RevenueBase Database · checked Sep 17, 2026
4Partial evidenceDiadema, BrazilHQ checked Sep 17, 202651-20024 contacts →

Partial evidence

“A LÖSUNG BRASIL é uma empresa nacional que fabrica e comercializa equipamentos que proporcionam maior agilidade em processos industriais, focando em otimizar o transporte interno…”

Source: RevenueBase Database · checked Sep 17, 2026
5Indirect evidenceDiadema, BrazilHQ checked Sep 17, 202611-5020 contacts →

Indirect evidence

“Quem Somos Estamos no mercado desde 1996, considerados como especialistas em distribuição elétrica de baixa tensão e automação.”

Source: RevenueBase Database · checked Sep 17, 2026
6Partial evidenceDiadema, BrazilHQ checked Sep 17, 202611-5017 contacts →

Partial evidence

“HP is a manufacturer of pneumatic and electrical panels, as well as special actuators, specializing in Electrical and Pneumatic Engineering, and has been operating in the market…”

Source: RevenueBase Database · checked Sep 17, 2026
7Indirect evidenceDiadema, BrazilHQ checked Sep 17, 202651-20015 contacts →

Indirect evidence

“A Pak Mak Indústria E Comércio De Máquinas é uma empresa de máquinas com sede na Rua Vinte e Três de Julho, 180 Canhema - Diadema - SP.”

Source: RevenueBase Database · checked Sep 17, 2026
8Partial evidenceDiadema, BrazilHQ checked Sep 17, 202651-2006 contacts →

Partial evidence

“Há 30 anos no mercado de Automação Industrial, se consolidamos como distribuidor Platinum da Mitsubishi Electric, se tornando referência na prestação de serviços por oferecer…”

Source: RevenueBase Database · checked Sep 17, 2026
9Partial evidenceDiadema, BrazilHQ checked Sep 17, 202611-505 contacts →

Partial evidence

“Há mais de 35 anos no mercado de tratamento de águas industriais e efluentes, a TRIER PRODUTOS QUÍMICOS oferece serviços em três diferentes frentes-> desenvolvimento de técnicas e…”

Source: RevenueBase Database · checked Sep 17, 2026

Showing 9 of 33 industrial manufacturers based in Diadema, Brazil

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Industrial manufacturers based in Diadema, Brazil at a glance

As of Sep 17, 2026
13.1%Verified-email coverage
12.5Average contacts per company
11-50Median size (employees)
893.9%Largest-city concentration · Sao Paulo
Sep 17, 2026Page data refreshed

Companies by employee count

1-10
9
11-50
15
51-200
7
201-500
1
1,001-5,000
1

Email recency for this list is measured across the whole Brazil list rather than for Diadema, so it is reported there. Company counts and contact totals on this page are exact for Diadema, over 33 companies.

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 manufacturers, 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.
What qualifies
Companies headquartered in Diadema, Brazil whose own description of what they do matches “industrial manufacturers”. 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 manufacturers), 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 manufacturers, and records with no verified work email. Companies headquartered outside Diadema are excluded even when they keep an office there.
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, 54 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.

Industrial manufacturers by metro in Brazil

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 manufacturers, 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 manufacturers are there based in Diadema, Brazil?

RevenueBase identified 33 industrial manufacturers headquartered in Diadema, Brazil 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?

Mastermag Industria E Comercio DE Pecas Automotivas, headquartered in Diadema, tops this list with the largest team on record.

Which city has the most industrial manufacturers?

Sao Paulo leads with 295 headquartered companies, followed by Curitiba (102) and Caxias Do Sul (74).

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 54 verified decision-maker contacts tracked across these 33 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.