Company lists · Data refreshed September 2026

Top 20 Heat-resistant materials manufacturers based in Brazil

RevenueBase identified 85 heat-resistant materials manufacturers headquartered in Brazil as of September 2026 and tracks 1,916 professional contacts across them, including 326 with verified work emails. Sao Paulo is the largest hub.

This list covers heat-resistant materials manufacturers headquartered in 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 16, 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 16, 2026 86% judged on-target in blind review
85Companies
1,916Contacts tracked
326Verified emails
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The 20 largest heat-resistant materials manufacturers based in Brazil

Ranked by team size
Top 20 of 85 heat-resistant materials manufacturers based in Brazil, ranked by team size, largest first. Data refreshed Sep 16, 2026. RevenueBase Smart Search rates how each company's information relates to heat-resistant materials 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 evidencePoá, BrazilHQ checked Sep 16, 20261,001-5,000688 contacts →

Partial evidence

“We are IBAR, the Brazilian representative for the development of advanced solutions in refractory materials technology for 80 years.”

Source: RevenueBase Database · checked Sep 16, 2026
2Indirect evidenceAnápolis, BrazilHQ checked Sep 16, 2026501-1,000157 contacts →

Indirect evidence

“A Isoeste Construtivos Isotérmicos se orgulha de ser líder em tecnologia na área de produtos com isolação térmica.”

Source: RevenueBase Database · checked Sep 16, 2026
3Indirect evidenceGuararema, BrazilHQ checked Sep 16, 2026201-500104 contacts →

Indirect evidence

“A Rockfibras desde 1960 fabrica isolantes térmicos e acústicos em Lã de Rocha THERMAX® e Silicato de cálcio ROCK-SIL®.”

Source: RevenueBase Database · checked Sep 16, 2026
4Indirect evidenceResende, BrazilHQ checked Sep 16, 202651-20065 contacts →

Indirect evidence

“It is settled in a m2 industrial área, located in Resende – Rio de Janeiro, Brazil.”

Source: RevenueBase Database · checked Sep 16, 2026
5Indirect evidenceMogi Das Cruzes, BrazilHQ checked Sep 16, 202651-20051 contacts →

Indirect evidence

“Empresa fabricante de Isolamento Térmico e capas Corta Fogo para indústrias gerais.”

Source: RevenueBase Database · checked Sep 16, 2026
6Partial evidenceJoinville, BrazilHQ checked Sep 16, 202651-20039 contacts →

Partial evidence

“A Refratek atua há mais de 35 anos no mercado de materiais refratários e isolantes, oferecendo soluções de qualidade certificada pela ISO 9001:2015.”

Source: RevenueBase Database · checked Sep 16, 2026
7Partial evidenceBetim, BrazilHQ checked Sep 16, 202651-20038 contacts →

Partial evidence

“GRUPO SAFFRAN, tradicional fabricante de material refratário.”

Source: RevenueBase Database · checked Sep 16, 2026
8Indirect evidenceEstiva Gerbi, BrazilHQ checked Sep 16, 202651-20037 contacts →

Indirect evidence

“Fundada em 1977 e partindo da ideia inicial de ser apenas “uma opção aos produtos refratários importados”, a Estiva hoje não é só a maior de seu segmento na América Latina, como…”

Source: RevenueBase Database · checked Sep 16, 2026
9Indirect evidenceBlumenau, BrazilHQ checked Sep 16, 20261,001-5,00035 contacts →

Indirect evidence

“EcoFiber is part of the Altenburg Group, a benchmark in bed and bath and a national leader in pillows, being recognized as one of the main textile industries in the country.”

Source: RevenueBase Database · checked Sep 16, 2026
10Indirect evidenceLauro De Freitas, BrazilHQ checked Sep 16, 202651-20034 contacts →

Indirect evidence

“A Risoterm é uma empresa especializada em engenharia nas áreas de revestimento refratário, isolamento térmico, acústico e proteção passiva contra incêndios.”

Source: RevenueBase Database · checked Sep 16, 2026
11Partial evidenceCharqueadas, BrazilHQ checked Sep 16, 202611-5026 contacts →

Partial evidence

“Termofrax is a building materials company based out of 1100 Av.”

Source: RevenueBase Database · checked Sep 16, 2026
12Indirect evidenceMogi Guaçu, BrazilHQ checked Sep 16, 202651-20021 contacts →

Indirect evidence

“RPA Reconhecida internacionalmente como a mais importante empresa do setor cerâmico Fundada em 1974, hoje a RPA - Refratários Paulista Indústria e Comércio Ltda - conta com a mais…”

Source: RevenueBase Database · checked Sep 16, 2026
13Indirect evidenceCuritiba, BrazilHQ checked Sep 16, 202611-5016 contacts →

Indirect evidence

“Founded in 1982, the Perfil Térmico works in the development of complete solutions for industrial heating and insulation.”

Source: RevenueBase Database · checked Sep 16, 2026
14Indirect evidenceItaquaquecetuba, BrazilHQ checked Sep 16, 202651-20016 contacts →

Indirect evidence

“Projeto e fabricação de produtos refratários formados e não formados incluindo concretos aluminosos, concretos básicos, lanças, peças linha leve como cadinhos, inibidores de…”

Source: RevenueBase Database · checked Sep 16, 2026
15Partial evidenceNova Lima, BrazilHQ checked Sep 16, 202611-5014 contacts →

Partial evidence

“A ALLEBRAS Isolantes Térmicos e Refratários atua no fornecimento de soluções para isolamento térmico, refratários e materiais de alta performance para processos industriais.”

Source: RevenueBase Database · checked Sep 16, 2026
16Indirect evidencePiracicaba, BrazilHQ checked Sep 16, 202611-5012 contacts →

Indirect evidence

“A MTB Mantas Térmicas oferece soluções de isolamento térmico de alta performance para os setores de Mineração e Agronegócio, ajudando empresas a mitigar riscos de incêndios e…”

Source: RevenueBase Database · checked Sep 16, 2026
17Partial evidenceContagem, BrazilHQ checked Sep 16, 2026201-5009 contacts →

Partial evidence

“Mais de 90 anos de qualidade e expertise Em 1918, Carl KAEFER fundou uma empresa especializada no fornecimento de material de isolamento e serviços para a indústria naval.”

Source: RevenueBase Database · checked Sep 16, 2026
18Indirect evidenceContagem, BrazilHQ checked Sep 16, 202651-2005 contacts →

Indirect evidence

“Desde sua fundação em 1987, a ATHBRASIL implantou no seu dia-a-dia, como diferencial, um sistema de gestão ágil, norteado por rigorosos princípios de qualidade, reconhecido e…”

Source: RevenueBase Database · checked Sep 16, 2026
19Indirect evidenceMairiporã, BrazilHQ checked Sep 16, 202611-503 contacts →

Indirect evidence

“Tetralite, uma indústria voltada a soluções de isolamento térmico e elétrico, 100% nacional.”

Source: RevenueBase Database · checked Sep 16, 2026
20Partial evidenceSao Paulo, BrazilHQ checked Sep 16, 20261-103 contacts →

Partial evidence

“Trade in material for thermal and electrical insulation, special fabrics for PPE, products derived from Ceramic Fiber, Glass Fiber, Synthetic Fiber, Graphite Plates, and Gaskets…”

Source: RevenueBase Database · checked Sep 16, 2026

Showing 20 of 85 heat-resistant materials manufacturers based in Brazil

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Heat-resistant materials manufacturers based in Brazil at a glance

As of Sep 16, 2026
17.0%Verified-email coverage
22.5Average contacts per company
11-50Median size (employees)
8.2%Largest-city concentration · Sao Paulo
Sep 16, 2026Page data refreshed

Companies by employee count

1-10
30
11-50
24
51-200
24
201-500
4
501-1,000
1
1,001-5,000
2

Email recency for this list is measured worldwide rather than for Brazil, so it is reported there. Company counts and contact totals on this page are exact for Brazil, over 85 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 heat-resistant materials 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 Brazil whose own description of what they do matches “heat-resistant materials 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 heat-resistant materials 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 heat-resistant materials manufacturers, and records with no verified work email. Companies headquartered outside Brazil 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, 326 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 16, 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.

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 heat-resistant materials 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 heat-resistant materials manufacturers are there based in Brazil?

RevenueBase identified 85 heat-resistant materials manufacturers headquartered in 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?

IBAR, headquartered in Poa, tops this list with the largest team on record.

Which city has the most heat-resistant materials manufacturers?

Sao Paulo leads with 7 headquartered companies, followed by Betim (3) and Blumenau (3).

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 326 verified decision-maker contacts tracked across these 85 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 16, 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.