Company lists · Data refreshed September 2026

Top 24 Duct insulation manufacturers based in Brazil

Name: Duct insulation manufacturers based in Brazil
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 30, 2026 100 companies tracked

RevenueBase identified 100 company matches for duct insulation manufacturers associated with Brazil as of September 2026 and tracks 989 professional contacts across them, including 185 with verified work emails. Sao Paulo is the largest hub.

This list covers company matches for duct insulation manufacturers associated with Brazil, 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 September 30, 2026.

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 Sep 30, 2026 How this list was built

100Companies

989Contacts tracked

185Verified emails

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The 24 largest duct insulation manufacturers based in Brazil

Ranked by team size

Top 24 of 100 company matches for duct insulation manufacturers based in Brazil, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 30, 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.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Isar Isolamentos Térmicos E Acústicos Ltda	Exact match	São Paulo, BrazilHQ recorded Sep 30, 2026	201-500	145 contacts →
	Exact match “A Isar atua como fornecedora de sistemas isolantes para todas as áreas do setor industrial e da construção civil desde 1980, sendo uma das mais tradicionais empresas…” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
2	WDB	Exact match	Contenda, BrazilHQ recorded Sep 30, 2026	51-200	76 contacts →
	Exact match “WdB is a well experienced and versatile company, who, since its start-up in Brazil in 1972 develops and manufactures flexible ducting and accessories primarily for the conduction…” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
3	Refrin	Exact match	São Paulo, BrazilHQ recorded Sep 30, 2026	51-200	56 contacts →
	Exact match “Empresa brasileira, há 40 anos atua no mercado de HVAC se dedicando a fabricação de Dutos, Acessórios e Equipamentos, com investimento contínuo em pessoas, maquinários e…” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
4	Isolafácil	Exact match	Mogi Das Cruzes, BrazilHQ recorded Sep 30, 2026	51-200	51 contacts →
	Exact match “Empresa fabricante de Isolamento Térmico e capas Corta Fogo para indústrias gerais.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
5	RVB Isolantes Para Transformadores	Exact match	Blumenau, BrazilHQ recorded Sep 30, 2026	201-500	49 contacts →
	Exact match “A RVB Isolantes para transformadores LTDA.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
6	3tc Isolamento	Exact match	Contagem, BrazilHQ recorded Sep 30, 2026	11-50	33 contacts →
	Exact match “Muito prazer, somos o inimigo nº 1 do calor e sua melhor solução em isolamento térmico desenvolvida exclusivamente para combater o calor.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
7	Isoletri	Exact match	Itupeva, BrazilHQ recorded Sep 30, 2026	51-200	31 contacts →
	Exact match “Empresa fundada em 2004, a ISOLETRI converte materiais isolantes a base de celulose para isolação de transformadores, reatores e equipamentos elétricos para baixa, média e alta…” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
8	KW DO Brasil	Exact match	Sao Paulo, BrazilHQ recorded Sep 30, 2026	n/a	31 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
9	Brasfor Comercial	Exact match	Jardim Anhanguera, BrazilHQ recorded Sep 30, 2026	51-200	19 contacts →
	Exact match “A Brasfor foi criada pelo Sr.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
10	Neotermica Isolantes Térmicos E Revestimentos Metálicos Ltda	Exact match	Casa Verde/sp, BrazilHQ recorded Sep 30, 2026	51-200	16 contacts →
	Exact match “Com mais de 45 anos de mercado, a Neotérmica é referência na distribuição de isolantes térmicos e acústicos, oferecendo soluções completas em isolamento para eficiência…” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
11	Retec Group	Exact match	Brasilia, BrazilHQ recorded Sep 30, 2026	11-50	15 contacts →
	Exact match “Welcome to RETEC Group!” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
12	Allebras Isolantes Térmicos	Exact match	Nova Lima, BrazilHQ recorded Sep 30, 2026	11-50	14 contacts →
	Exact match “A ALLEBRAS Isolantes Térmicos e Refratários atua no fornecimento de soluções para isolamento térmico, refratários e materiais de alta performance para processos industriais.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
13	Egeo Projetos	Exact match	Belo Horizonte, BrazilHQ recorded Sep 30, 2026	11-50	13 contacts →
	Exact match “A EGEO Projetos Isolamentos Térmicos e Acústicos é uma empresa voltada para soluções em Isolamentos Térmicos, Acústicos e Proteção Passiva.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
14	MTB Manta Térmica	Exact match	Piracicaba, BrazilHQ recorded Sep 30, 2026	11-50	12 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
15	RVD Materiais Dielétricos Ltda	Exact match	Valinhos, BrazilHQ recorded Sep 30, 2026	51-200	12 contacts →
	Exact match “Com mais de 30 anos de atuação no mercado, somos especializados na produção de materiais isolantes elétricos e uma referência no fornecimento para diversos setores da indústria…” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
16	Bulltrade	Exact match	Novo Hamburgo, BrazilHQ recorded Sep 30, 2026	11-50	10 contacts →
	Exact match “Com mais de 30 anos de experiência em isolamento térmico, o grupo Bulltrade possui duas unidades industriais no Rio Grande do Sul, localizadas em Novo Hamburgo e Sapucaia do Sul.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
17	Kaefer Brasil	Exact match	Contagem, BrazilHQ recorded Sep 30, 2026	201-500	9 contacts →
	Exact match “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.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
18	Asalit	Exact match	Belo Horizonte, BrazilHQ recorded Sep 30, 2026	11-50	7 contacts →
	Exact match “A Asalit é a maior distribuidora certificada ISO9001 de isolantes térmicos e vedantes do Brasil.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
19	Rib-Therm	Exact match	Ribeirao Preto, BrazilHQ recorded Sep 30, 2026	51-200	7 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
20	Isolex Isolantes Térmicos	Exact match	Pindamonhangaba, BrazilHQ recorded Sep 30, 2026	11-50	6 contacts →
	Exact match “Isolex provides technical insulation solutions across the temperature spectrum from cryogenic and low-temperature, to high-temperature applications in the industrial, chemical and…” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
21	Athbrasil Isolantes Térmicos E Refratários	Exact match	Contagem, BrazilHQ recorded Sep 30, 2026	51-200	5 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
22	Imec Isolantes Ltda	Exact match	Santana De Parnaíba, BrazilHQ recorded Sep 30, 2026	11-50	4 contacts →
	Exact match “A Imec Isolantes foi fundada em 1998 com sede própria, localizada no município de Santana de Parnaíba - São Paulo, em uma planta de 2.850mts, com capacidade para atender todo o…” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
23	Tetralite	Exact match	Mairiporã, BrazilHQ recorded Sep 30, 2026	11-50	3 contacts →
	Exact match “Tetralite, uma indústria voltada a soluções de isolamento térmico e elétrico, 100% nacional.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
24	S Remove	Exact match	Parapuã, BrazilHQ recorded Sep 30, 2026	1-10	1 contacts →
	Exact match “O isolamento removível, substitui o isolamento convencional em aplicações especiais onde a superfície quente ou fria requer manuseio constante ou periódica para manutenção ou…” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “duct insulation manufacturers”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 24 of 100 duct insulation manufacturers based in Brazil

See the full list, filter by size, metro and specialty, and access 185 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Duct insulation manufacturers based in Brazil at a glance

As of Sep 30, 2026

18.7%Verified-email coverage

9.9Average contacts per company

11-50Median size (employees)

14.0%Largest-city concentration · Sao Paulo

Sep 30, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

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 100 companies.

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.
What qualifies: Company records associated with Brazil whose business descriptions match “duct insulation manufacturers” 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. Where headquarters information is recorded, preview rows are also filtered to this page’s location. 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 185 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 September 30, 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.

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 “duct insulation manufacturers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many duct insulation manufacturers are there based in Brazil?

RevenueBase identified 100 company matches for duct insulation manufacturers associated with Brazil as of September 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?

Isar Isolamentos Térmicos E Acústicos Ltda tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most duct insulation manufacturers?

Sao Paulo leads with 14 company records, followed by Barrinha (7) and Campinas (4).

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 185 professional contacts with verified work emails tracked across these 100 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 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 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.