Company lists · Data refreshed October 2026
Top 25 Insulator manufacturers based in the United States
RevenueBase identified 1,052 company matches for insulator manufacturers associated with the United States as of October 2026 and tracks 13,684 professional contacts across them, including 4,133 with verified work emails. Houston is the largest hub.
This list covers company matches for insulator manufacturers associated with the United States, 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 16, 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.
The 25 largest insulator manufacturers based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 937 contacts → | ||||
Exact match “MacLean Power Systems (MPS), headquartered in Fort Mill, SC, is LEADING THE WAY™ in delivering innovative, reliable, and resilient solutions for the electric utility…” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase | |||||
| 2 | 529 contacts → | ||||
Exact match “SPI is a global leader in the Distribution and Specialty Fabrication of insulation products for Thermal, Acoustic, Fire Protection and Refractory applications.” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase | |||||
| 3 | 488 contacts → | ||||
Exact match “The Okonite Company was founded in 1878 making it one of the original insulators of electrical wire and cable in the United States.” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase | |||||
| 4 | 484 contacts → | ||||
Exact match “Distribution International (DI) a leading distributor of thermal and acoustical insulation and related supplies for maintenance and repair operations in the United States.” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase | |||||
| 5 | 438 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase | |||||
| 6 | 421 contacts → | ||||
Exact match “At Unifrax, we provide innovative solutions to our customers' application problems across several different industries.” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase | |||||
| 7 | 342 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase | |||||
| 8 | 219 contacts → | ||||
Exact match “NUTEC is a leading manufacturer of superior quality, high-temperature insulation and fire protection products.” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase | |||||
| 9 | 160 contacts → | ||||
Exact match “Established in 1977 and incorporated in 1985, USA Insulation has saved thousands of customers millions of dollars on their heating and air conditioning bills.” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase | |||||
| 10 | 157 contacts → | ||||
Exact match “Established in and headquartered in Charlotte, N.C, Greenfiber is the largest manufacturer of cellulose insulation and fire and sound products.” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase | |||||
| 11 | 146 contacts → | ||||
Exact match “JM is the leading manufacturer of thermal insulation solutions for high and low-temperature industrial applications.” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase | |||||
| 12 | 146 contacts → | ||||
Exact match “K-FLEX USA is the North American division of the IK Insulation Group, an innovative leader in flexible elastomeric foam insulation with 12 production facilities worldwide and a…” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase | |||||
| 13 | 142 contacts → | ||||
Exact match “Metl-Span is a dynamic industry innovator dedicated to manufacturing and marketing the highest quality insulated building panel products.” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase | |||||
| 14 | 121 contacts → | ||||
Exact match “Silvercote, a Service Partners company, manufactures high-quality metal building insulation products customized to project specifications.” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase | |||||
| 15 | 112 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase | |||||
| 16 | 107 contacts → | ||||
Exact match “Chaparral Insulation has proudly served the mechanical insulation industry for more than 30 years.” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase | |||||
| 17 | 102 contacts → | ||||
Exact match “Our mission is to deliver efficiency and improve comfort by addressing customer priorities, with expertise and simplicity, for an ultimately painless process.” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase | |||||
| 18 | 98 contacts → | ||||
Exact match “Headquartered in Ypsilanti, MI, USA, LuxWall is focused on product development, scaling, and commercialization of innovative energy-efficient products and solutions for the built…” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase | |||||
| 19 | 92 contacts → | ||||
Exact match “Epsilyte is one of North America’s leading producers of advanced insulative materials.” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase | |||||
| 20 | 90 contacts → | ||||
Exact match “FOAMGLAS® insulation is part of Owens Corning, a global building and industrial materials leader with three integrated businesses that are dedicated to the manufacture and…” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase | |||||
| 21 | 85 contacts → | ||||
Exact match “Since 1978, Rmax has been manufacturing high-quality polyiso insulation products and providing engineered solutions for enhanced energy efficiency.” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase | |||||
| 22 | 82 contacts → | ||||
Exact match “Founded in 1942, Bayou is widely recognized as a market leader in onshore pipe coatings and offshore coatings and insulation, including highly-specialized insulation for the oil &…” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase | |||||
| 23 | 76 contacts → | ||||
Exact match “From the start of every project to its completion, we dedicate ourselves to providing you with the superior service that reflects our quality and professionalism.” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase | |||||
| 24 | 71 contacts → | ||||
Exact match “Progressive Foam Technologies is a leading manufacturer of foam insulation products for home exterior, interior and foundation applications – and is also the inventor of insulated…” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase | |||||
| 25 | 71 contacts → | ||||
Exact match “Therm-All has been at the forefront of metal building insulation solutions since 1981.” Recorded in the RevenueBase company graph · Oct 16, 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 “insulator 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 25 of 1,052 insulator manufacturers based in the United States
See the full list, filter by size, metro and specialty, and access 4,133 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Insulator manufacturers based in the United States at a glance
As of Oct 16, 2026Companies by employee count
Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 1,052 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 the United States whose business descriptions match “insulator 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 4,133 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 16, 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.
Insulator manufacturers by metro
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 “insulator manufacturers”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many insulator manufacturers are there based in the United States?
RevenueBase identified 1,052 company matches for insulator manufacturers associated with the United States 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?
Maclean Power Systems tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city has the most insulator manufacturers?
Houston leads with 30 company records, followed by Miami (9) and Charlotte (8).
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 4,133 professional contacts with verified work emails tracked across these 1,052 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 16, 2026.
Ready to reach these companies? Verified emails and direct dials for all 1,052 insulator manufacturers based in the United States. Start with a free account, no credit card.
Download this list →Related lists
Insulator manufacturers by geography
- Insulator manufacturers based in Houston, United States
- Insulator manufacturers based in Argentina
- Insulator manufacturers based in Australia
- Insulator manufacturers based in Austria
- Insulator manufacturers based in Belgium
- Insulator manufacturers based in Brazil
- Insulator manufacturers based in Canada
- Insulator manufacturers based in Czechia
- Insulator manufacturers based in Denmark
- Insulator manufacturers based in Finland
- Insulator manufacturers based in France
- Insulator manufacturers based in Germany
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.
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Insulator manufacturers based in Houston, United States
- Insulator manufacturers based in Argentina
- Insulator manufacturers based in Australia
- Insulator manufacturers based in Austria
- Insulator manufacturers based in Belgium
- Insulator manufacturers based in Brazil
Company intelligence · public preview
Top 25 insulator manufacturers based in the United States
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 1,052 matching company records for insulator manufacturers based in the United States, with 13,684 tracked contacts and 4,133 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: October 16, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 insulator manufacturers based in the United States
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 |  Maclean Power Systemsmacleanpower.comHQ: Fort Mill, SC, United StatesReported employees: 1,001-5,000 | Fort Mill, SC, United States | 1,001-5,000 | Exact match | 937 contacts → |
“MacLean Power Systems (MPS), headquartered in Fort Mill, SC, is LEADING THE WAY™ in delivering innovative, reliable, and resilient solutions for the electric utility…” Recorded description excerpt · October 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | SPIspi-co.com HQ: Charlotte, NC, United StatesReported employees: 1,001-5,000 | Charlotte, NC, United States | 1,001-5,000 | Exact match | 529 contacts → |
“SPI is a global leader in the Distribution and Specialty Fabrication of insulation products for Thermal, Acoustic, Fire Protection and Refractory applications.” Recorded description excerpt · October 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | The Okonite Companyokonite.com HQ: Ramsey, NJ, United StatesReported employees: 1,001-5,000 | Ramsey, NJ, United States | 1,001-5,000 | Exact match | 488 contacts → |
“The Okonite Company was founded in 1878 making it one of the original insulators of electrical wire and cable in the United States.” Recorded description excerpt · October 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Distribution Internationaldistributioninternational.com HQ: Houston, TX, United StatesReported employees: 1,001-5,000 | Houston, TX, United States | 1,001-5,000 | Exact match | 484 contacts → |
“Distribution International (DI) a leading distributor of thermal and acoustical insulation and related supplies for maintenance and repair operations in the United States.” Recorded description excerpt · October 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | KPS Global LLCkpsglobal.com HQ: Fort Worth, TX, United StatesReported employees: 501-1,000 | Fort Worth, TX, United States | 501-1,000 | Exact match | 438 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 6 | Unifraxunifrax.com HQ: Tonawanda, NY, United StatesReported employees: 1,001-5,000 | Tonawanda, NY, United States | 1,001-5,000 | Exact match | 421 contacts → |
“At Unifrax, we provide innovative solutions to our customers' application problems across several different industries.” Recorded description excerpt · October 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | General Insulation Company, INCgeneralinsulation.com HQ: Medford, MA, United StatesReported employees: 501-1,000 | Medford, MA, United States | 501-1,000 | Exact match | 342 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 8 | NUTECnutec.com HQ: Huntersville, NC, United StatesReported employees: 201-500 | Huntersville, NC, United States | 201-500 | Exact match | 219 contacts → |
“NUTEC is a leading manufacturer of superior quality, high-temperature insulation and fire protection products.” Recorded description excerpt · October 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | USA Insulationusainsulation.com HQ: Cleveland, OH, United StatesReported employees: 51-200 | Cleveland, OH, United States | 51-200 | Exact match | 160 contacts → |
“Established in 1977 and incorporated in 1985, USA Insulation has saved thousands of customers millions of dollars on their heating and air conditioning bills.” Recorded description excerpt · October 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Greenfibergreenfiber.com HQ: Charlotte, United StatesReported employees: 201-500 | Charlotte, United States | 201-500 | Exact match | 157 contacts → |
“Established in and headquartered in Charlotte, N.C, Greenfiber is the largest manufacturer of cellulose insulation and fire and sound products.” Recorded description excerpt · October 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | HQ: Denver, CO, United StatesReported employees: 201-500 | Denver, CO, United States | 201-500 | Exact match | 146 contacts → |
“JM is the leading manufacturer of thermal insulation solutions for high and low-temperature industrial applications.” Recorded description excerpt · October 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | K-Flex USAkflexusa.com HQ: Youngsville, NC, United StatesReported employees: 201-500 | Youngsville, NC, United States | 201-500 | Exact match | 146 contacts → |
“K-FLEX USA is the North American division of the IK Insulation Group, an innovative leader in flexible elastomeric foam insulation with 12 production facilities worldwide and a…” Recorded description excerpt · October 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Metl-Spanmetlspan.com HQ: Lewisville, TX, United StatesReported employees: 201-500 | Lewisville, TX, United States | 201-500 | Exact match | 142 contacts → |
“Metl-Span is a dynamic industry innovator dedicated to manufacturing and marketing the highest quality insulated building panel products.” Recorded description excerpt · October 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Silvercotesilvercote.com HQ: Greenville, SC, United StatesReported employees: 51-200 | Greenville, SC, United States | 51-200 | Exact match | 121 contacts → |
“Silvercote, a Service Partners company, manufactures high-quality metal building insulation products customized to project specifications.” Recorded description excerpt · October 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  All-State Industries, INCall-stateind.comHQ: West Des Moines, IA, United StatesReported employees: 201-500 | West Des Moines, IA, United States | 201-500 | Exact match | 112 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 16 |  Chaparral Companychaparralco.comHQ: Waco, TX, United StatesReported employees: 1,001-5,000 | Waco, TX, United States | 1,001-5,000 | Exact match | 107 contacts → |
“Chaparral Insulation has proudly served the mechanical insulation industry for more than 30 years.” Recorded description excerpt · October 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Koala Insulationkoalainsulation.com HQ: Melbourne, FL, United StatesReported employees: 11-50 | Melbourne, FL, United States | 11-50 | Exact match | 102 contacts → |
“Our mission is to deliver efficiency and improve comfort by addressing customer priorities, with expertise and simplicity, for an ultimately painless process.” Recorded description excerpt · October 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Luxwall, INCluxwall.com HQ: Ypsilanti, MI, United StatesReported employees: 51-200 | Ypsilanti, MI, United States | 51-200 | Exact match | 98 contacts → |
“Headquartered in Ypsilanti, MI, USA, LuxWall is focused on product development, scaling, and commercialization of innovative energy-efficient products and solutions for the built…” Recorded description excerpt · October 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  Epsilyteepsilyte.comHQ: The Woodlands, TX, United StatesReported employees: 201-500 | The Woodlands, TX, United States | 201-500 | Exact match | 92 contacts → |
“Epsilyte is one of North America’s leading producers of advanced insulative materials.” Recorded description excerpt · October 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Owens Corning Foamglas Industrial Insulationfoamglas.com HQ: Toledo, OH, United StatesReported employees: 201-500 | Toledo, OH, United States | 201-500 | Exact match | 90 contacts → |
“FOAMGLAS® insulation is part of Owens Corning, a global building and industrial materials leader with three integrated businesses that are dedicated to the manufacture and…” Recorded description excerpt · October 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Rmax, A Sika Brandrmax.com HQ: Lewisville, TX, United StatesReported employees: 5,001-10,000 | Lewisville, TX, United States | 5,001-10,000 | Exact match | 85 contacts → |
“Since 1978, Rmax has been manufacturing high-quality polyiso insulation products and providing engineered solutions for enhanced energy efficiency.” Recorded description excerpt · October 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  The Bayou Companiesbayoucompanies.comHQ: New Iberia, LA, United StatesReported employees: 501-1,000 | New Iberia, LA, United States | 501-1,000 | Exact match | 82 contacts → |
“Founded in 1942, Bayou is widely recognized as a market leader in onshore pipe coatings and offshore coatings and insulation, including highly-specialized insulation for the oil &…” Recorded description excerpt · October 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | OJ Insulationojinc.com HQ: Azusa, CA, United StatesReported employees: 201-500 | Azusa, CA, United States | 201-500 | Exact match | 76 contacts → |
“From the start of every project to its completion, we dedicate ourselves to providing you with the superior service that reflects our quality and professionalism.” Recorded description excerpt · October 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Progressive Foam Technologies, INCprogressivefoam.com HQ: Beach City, OH, United StatesReported employees: 51-200 | Beach City, OH, United States | 51-200 | Exact match | 71 contacts → |
“Progressive Foam Technologies is a leading manufacturer of foam insulation products for home exterior, interior and foundation applications – and is also the inventor of insulated…” Recorded description excerpt · October 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Therm-Alltherm-all.com HQ: Westlake, OH, United StatesReported employees: 51-200 | Westlake, OH, United States | 51-200 | Exact match | 71 contacts → |
“Therm-All has been at the forefront of metal building insulation solutions since 1981.” Recorded description excerpt · October 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 1,052 company matches
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Insulator manufacturers: dataset insights
October 16, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
1,038 records in the displayed employee bands.
14 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 1,052 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: October 16, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Insulator manufacturers by metro
Questions about this company list
What does Exact match mean for insulator manufacturers?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many insulator manufacturers did RevenueBase find based in the United States?
The saved snapshot records 1,052 matching company records, 13,684 tracked contacts and 4,133 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: October 16, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Insulator manufacturers by geography
- Insulator manufacturers based in Houston, United States
- Insulator manufacturers based in Argentina
- Insulator manufacturers based in Australia
- Insulator manufacturers based in Austria
- Insulator manufacturers based in Belgium
- Insulator manufacturers based in Brazil
- Insulator manufacturers based in Canada
- Insulator manufacturers based in Czechia
- Insulator manufacturers based in Denmark
- Insulator manufacturers based in Finland
- Insulator manufacturers based in France
- Insulator manufacturers based in Germany
Cite this list
RevenueBase Data Team. Top 25 insulator manufacturers based in the United States. Snapshot: October 16, 2026. https://revenuebase.ai/companies/insulator-manufacturers/united-states.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Insulator manufacturers based in Houston, United States
- Insulator manufacturers based in Argentina
- Insulator manufacturers based in Australia
- Insulator manufacturers based in Austria
- Insulator manufacturers based in Belgium
- Insulator manufacturers based in Brazil
Company intelligence · public preview
Top 25 insulator manufacturers based in the United States
RevenueBase records 1,052 matching company records for insulator manufacturers based in the United States, with 13,684 tracked contacts and 4,133 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: October 16, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 insulator manufacturers based in the United States
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 | Maclean Power Systemsmacleanpower.com HQ: Fort Mill, SC, United StatesReported employees: 1,001-5,000 | Fort Mill, SC, United States | 1,001-5,000 | Exact match | 937 contacts → |
“MacLean Power Systems (MPS), headquartered in Fort Mill, SC, is LEADING THE WAY™ in delivering innovative, reliable, and resilient solutions for the electric utility…” Recorded description excerpt · October 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | SPIspi-co.com HQ: Charlotte, NC, United StatesReported employees: 1,001-5,000 | Charlotte, NC, United States | 1,001-5,000 | Exact match | 529 contacts → |
“SPI is a global leader in the Distribution and Specialty Fabrication of insulation products for Thermal, Acoustic, Fire Protection and Refractory applications.” Recorded description excerpt · October 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | The Okonite Companyokonite.com HQ: Ramsey, NJ, United StatesReported employees: 1,001-5,000 | Ramsey, NJ, United States | 1,001-5,000 | Exact match | 488 contacts → |
“The Okonite Company was founded in 1878 making it one of the original insulators of electrical wire and cable in the United States.” Recorded description excerpt · October 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Distribution Internationaldistributioninternational.com HQ: Houston, TX, United StatesReported employees: 1,001-5,000 | Houston, TX, United States | 1,001-5,000 | Exact match | 484 contacts → |
“Distribution International (DI) a leading distributor of thermal and acoustical insulation and related supplies for maintenance and repair operations in the United States.” Recorded description excerpt · October 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | KPS Global LLCkpsglobal.com HQ: Fort Worth, TX, United StatesReported employees: 501-1,000 | Fort Worth, TX, United States | 501-1,000 | Exact match | 438 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 6 | Unifraxunifrax.com HQ: Tonawanda, NY, United StatesReported employees: 1,001-5,000 | Tonawanda, NY, United States | 1,001-5,000 | Exact match | 421 contacts → |
“At Unifrax, we provide innovative solutions to our customers' application problems across several different industries.” Recorded description excerpt · October 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | General Insulation Company, INCgeneralinsulation.com HQ: Medford, MA, United StatesReported employees: 501-1,000 | Medford, MA, United States | 501-1,000 | Exact match | 342 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 8 | NUTECnutec.com HQ: Huntersville, NC, United StatesReported employees: 201-500 | Huntersville, NC, United States | 201-500 | Exact match | 219 contacts → |
“NUTEC is a leading manufacturer of superior quality, high-temperature insulation and fire protection products.” Recorded description excerpt · October 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | USA Insulationusainsulation.com HQ: Cleveland, OH, United StatesReported employees: 51-200 | Cleveland, OH, United States | 51-200 | Exact match | 160 contacts → |
“Established in 1977 and incorporated in 1985, USA Insulation has saved thousands of customers millions of dollars on their heating and air conditioning bills.” Recorded description excerpt · October 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Greenfibergreenfiber.com HQ: Charlotte, United StatesReported employees: 201-500 | Charlotte, United States | 201-500 | Exact match | 157 contacts → |
“Established in and headquartered in Charlotte, N.C, Greenfiber is the largest manufacturer of cellulose insulation and fire and sound products.” Recorded description excerpt · October 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | HQ: Denver, CO, United StatesReported employees: 201-500 | Denver, CO, United States | 201-500 | Exact match | 146 contacts → |
“JM is the leading manufacturer of thermal insulation solutions for high and low-temperature industrial applications.” Recorded description excerpt · October 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | K-Flex USAkflexusa.com HQ: Youngsville, NC, United StatesReported employees: 201-500 | Youngsville, NC, United States | 201-500 | Exact match | 146 contacts → |
“K-FLEX USA is the North American division of the IK Insulation Group, an innovative leader in flexible elastomeric foam insulation with 12 production facilities worldwide and a…” Recorded description excerpt · October 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Metl-Spanmetlspan.com HQ: Lewisville, TX, United StatesReported employees: 201-500 | Lewisville, TX, United States | 201-500 | Exact match | 142 contacts → |
“Metl-Span is a dynamic industry innovator dedicated to manufacturing and marketing the highest quality insulated building panel products.” Recorded description excerpt · October 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Silvercotesilvercote.com HQ: Greenville, SC, United StatesReported employees: 51-200 | Greenville, SC, United States | 51-200 | Exact match | 121 contacts → |
“Silvercote, a Service Partners company, manufactures high-quality metal building insulation products customized to project specifications.” Recorded description excerpt · October 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | All-State Industries, INCall-stateind.com HQ: West Des Moines, IA, United StatesReported employees: 201-500 | West Des Moines, IA, United States | 201-500 | Exact match | 112 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 16 | Chaparral Companychaparralco.com HQ: Waco, TX, United StatesReported employees: 1,001-5,000 | Waco, TX, United States | 1,001-5,000 | Exact match | 107 contacts → |
“Chaparral Insulation has proudly served the mechanical insulation industry for more than 30 years.” Recorded description excerpt · October 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Koala Insulationkoalainsulation.com HQ: Melbourne, FL, United StatesReported employees: 11-50 | Melbourne, FL, United States | 11-50 | Exact match | 102 contacts → |
“Our mission is to deliver efficiency and improve comfort by addressing customer priorities, with expertise and simplicity, for an ultimately painless process.” Recorded description excerpt · October 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Luxwall, INCluxwall.com HQ: Ypsilanti, MI, United StatesReported employees: 51-200 | Ypsilanti, MI, United States | 51-200 | Exact match | 98 contacts → |
“Headquartered in Ypsilanti, MI, USA, LuxWall is focused on product development, scaling, and commercialization of innovative energy-efficient products and solutions for the built…” Recorded description excerpt · October 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Epsilyteepsilyte.com HQ: The Woodlands, TX, United StatesReported employees: 201-500 | The Woodlands, TX, United States | 201-500 | Exact match | 92 contacts → |
“Epsilyte is one of North America’s leading producers of advanced insulative materials.” Recorded description excerpt · October 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Owens Corning Foamglas Industrial Insulationfoamglas.com HQ: Toledo, OH, United StatesReported employees: 201-500 | Toledo, OH, United States | 201-500 | Exact match | 90 contacts → |
“FOAMGLAS® insulation is part of Owens Corning, a global building and industrial materials leader with three integrated businesses that are dedicated to the manufacture and…” Recorded description excerpt · October 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Rmax, A Sika Brandrmax.com HQ: Lewisville, TX, United StatesReported employees: 5,001-10,000 | Lewisville, TX, United States | 5,001-10,000 | Exact match | 85 contacts → |
“Since 1978, Rmax has been manufacturing high-quality polyiso insulation products and providing engineered solutions for enhanced energy efficiency.” Recorded description excerpt · October 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | The Bayou Companiesbayoucompanies.com HQ: New Iberia, LA, United StatesReported employees: 501-1,000 | New Iberia, LA, United States | 501-1,000 | Exact match | 82 contacts → |
“Founded in 1942, Bayou is widely recognized as a market leader in onshore pipe coatings and offshore coatings and insulation, including highly-specialized insulation for the oil &…” Recorded description excerpt · October 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | OJ Insulationojinc.com HQ: Azusa, CA, United StatesReported employees: 201-500 | Azusa, CA, United States | 201-500 | Exact match | 76 contacts → |
“From the start of every project to its completion, we dedicate ourselves to providing you with the superior service that reflects our quality and professionalism.” Recorded description excerpt · October 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Progressive Foam Technologies, INCprogressivefoam.com HQ: Beach City, OH, United StatesReported employees: 51-200 | Beach City, OH, United States | 51-200 | Exact match | 71 contacts → |
“Progressive Foam Technologies is a leading manufacturer of foam insulation products for home exterior, interior and foundation applications – and is also the inventor of insulated…” Recorded description excerpt · October 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Therm-Alltherm-all.com HQ: Westlake, OH, United StatesReported employees: 51-200 | Westlake, OH, United States | 51-200 | Exact match | 71 contacts → |
“Therm-All has been at the forefront of metal building insulation solutions since 1981.” Recorded description excerpt · October 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 1,052 company matches
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Insulator manufacturers: dataset insights
October 16, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
1,038 records in the displayed employee bands.
14 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 1,052 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: October 16, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Insulator manufacturers by metro
Questions about this company list
What does Exact match mean for insulator manufacturers?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many insulator manufacturers did RevenueBase find based in the United States?
The saved snapshot records 1,052 matching company records, 13,684 tracked contacts and 4,133 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: October 16, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Insulator manufacturers by geography
- Insulator manufacturers based in Houston, United States
- Insulator manufacturers based in Argentina
- Insulator manufacturers based in Australia
- Insulator manufacturers based in Austria
- Insulator manufacturers based in Belgium
- Insulator manufacturers based in Brazil
- Insulator manufacturers based in Canada
- Insulator manufacturers based in Czechia
- Insulator manufacturers based in Denmark
- Insulator manufacturers based in Finland
- Insulator manufacturers based in France
- Insulator manufacturers based in Germany
Cite this list
RevenueBase Data Team. Top 25 insulator manufacturers based in the United States. Snapshot: October 16, 2026. https://revenuebase.ai/companies/insulator-manufacturers/united-states.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
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- Insulator manufacturers based in Houston, United States
- Insulator manufacturers based in Argentina
- Insulator manufacturers based in Australia
- Insulator manufacturers based in Austria
- Insulator manufacturers based in Belgium
- Insulator manufacturers based in Brazil