Company lists · Data refreshed October 2026
Top 25 Insulating refractories suppliers based in the United States
RevenueBase identified 194 company matches for insulating refractories suppliers associated with the United States as of October 2026 and tracks 3,767 professional contacts across them, including 1,302 with verified work emails. Houston is the largest hub.
This list covers company matches for insulating refractories suppliers 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 27, 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 insulating refractories suppliers based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 781 contacts → | ||||
Exact match “HWI is the largest supplier of refractory products and services in the United States, with a history that spans more than 150 years.” Recorded in the RevenueBase company graph · Oct 27, 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 27, 2026 · View company records in RevenueBase | |||||
| 3 | 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 27, 2026 · View company records in RevenueBase | |||||
| 4 | 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 27, 2026 · View company records in RevenueBase | |||||
| 5 | 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 27, 2026 · View company records in RevenueBase | |||||
| 6 | 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 27, 2026 · View company records in RevenueBase | |||||
| 7 | 90 contacts → | ||||
Exact match “Magneco/Metrel, Inc.(MMI) is a worldwide refractory manufacturer with headquarters in Deerfield, Illinois, USA.” Recorded in the RevenueBase company graph · Oct 27, 2026 · View company records in RevenueBase | |||||
| 8 | 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 27, 2026 · View company records in RevenueBase | |||||
| 9 | 78 contacts → | ||||
Exact match “Plibrico offers a full line of monolithic refractories, insulating firebrick and complementary refractory products.” Recorded in the RevenueBase company graph · Oct 27, 2026 · View company records in RevenueBase | |||||
| 10 | 51 contacts → | ||||
Exact match “OUTSTANDING QUALITY, PROVEN TECHNOLOGY, & CUSTOMER-FOCUSED SERVICE FOR 50 YEARS.” Recorded in the RevenueBase company graph · Oct 27, 2026 · View company records in RevenueBase | |||||
| 11 | 50 contacts → | ||||
Exact match “Founded in 1958, The Nelson Companies is a family of independently operated specialty contracting businesses serving commercial, industrial, healthcare, education, manufacturing…” Recorded in the RevenueBase company graph · Oct 27, 2026 · View company records in RevenueBase | |||||
| 12 | 47 contacts → | ||||
Exact match “With fabricating facilities in New Jersey, North Carolina and Georgia, Pacor custom fabricates and distributes fiberglass, aerogel, ceramic and foam industrial insulation products…” Recorded in the RevenueBase company graph · Oct 27, 2026 · View company records in RevenueBase | |||||
| 13 | 42 contacts → | ||||
Exact match “Under the Fosbel family of companies, Wahl Refractory Solutions was originally founded by Oscar C.” Recorded in the RevenueBase company graph · Oct 27, 2026 · View company records in RevenueBase | |||||
| 14 | 41 contacts → | ||||
Exact match “Superior Refractory Solutions, Expertise in the Safe Removal, Installation, and Supply of Refractories and Industrial Insulation.” Recorded in the RevenueBase company graph · Oct 27, 2026 · View company records in RevenueBase | |||||
| 15 | 39 contacts → | ||||
Exact match “Insul-Therm Intl.” Recorded in the RevenueBase company graph · Oct 27, 2026 · View company records in RevenueBase | |||||
| 16 | 38 contacts → | ||||
Exact match “Onex is a global industrial refractory contractor, project manager, and material supplier.” Recorded in the RevenueBase company graph · Oct 27, 2026 · View company records in RevenueBase | |||||
| 17 | 31 contacts → | ||||
Exact match “Stellar Materials incorporated in 1990, and first began manufacturing Thermbond Refractory Solutions in Detroit, Michigan.” Recorded in the RevenueBase company graph · Oct 27, 2026 · View company records in RevenueBase | |||||
| 18 | 30 contacts → | ||||
Exact match “Guy Nielson Company is a Refractory Contractor based out of Pocatello, Idaho.” Recorded in the RevenueBase company graph · Oct 27, 2026 · View company records in RevenueBase | |||||
| 19 | 27 contacts → | ||||
Exact match “BNZ Materials is a world leading manufacturer of specialty industrial insulation materials with over 16 types of Insulating FireBricks available for use in applications from to…” Recorded in the RevenueBase company graph · Oct 27, 2026 · View company records in RevenueBase | |||||
| 20 | 26 contacts → | ||||
Exact match “Founded in 1975, Mt.” Recorded in the RevenueBase company graph · Oct 27, 2026 · View company records in RevenueBase | |||||
| 21 | 26 contacts → | ||||
Exact match “Upstate Refractory Services, now part of Onex, Inc, is a full-service refractory contractor, installer, distributor, and furnace solutions provider serving customers throughout…” Recorded in the RevenueBase company graph · Oct 27, 2026 · View company records in RevenueBase | |||||
| 22 | 25 contacts → | ||||
Exact match “A leader in the industry, FI-FOIL® manufactures high-performance reflective insulation products and systems.” Recorded in the RevenueBase company graph · Oct 27, 2026 · View company records in RevenueBase | |||||
| 23 | 25 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Oct 27, 2026 · View company records in RevenueBase | |||||
| 24 | 24 contacts → | ||||
Exact match “Carbon Composites, Inc, is an established name in the world of high temperature graphite furnace insulation and carbon/carbon composites, specializing in the design and…” Recorded in the RevenueBase company graph · Oct 27, 2026 · View company records in RevenueBase | |||||
| 25 | 24 contacts → | ||||
Exact match “Southwest Refractory delivers the world’s highest quality refractory, acid proofing, industrial masonry and fireproofing services.” Recorded in the RevenueBase company graph · Oct 27, 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 “insulating refractories suppliers”. 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 194 insulating refractories suppliers based in the United States
See the full list, filter by size, metro and specialty, and access 1,302 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Insulating refractories suppliers based in the United States at a glance
As of Oct 27, 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 194 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 “insulating refractories suppliers” 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 1,302 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 27, 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 “insulating refractories suppliers”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many insulating refractories suppliers are there based in the United States?
RevenueBase identified 194 company matches for insulating refractories suppliers 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?
Harbisonwalker International tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city has the most insulating refractories suppliers?
Houston leads with 6 company records, followed by Charlotte (5) and Cleveland (3).
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 1,302 professional contacts with verified work emails tracked across these 194 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 27, 2026.
Ready to reach these companies? Verified emails and direct dials for all 194 insulating refractories suppliers based in the United States. Start with a free account, no credit card.
Download this list →Related lists
Insulating refractories suppliers by geography
- Insulating refractories suppliers based in Australia
- Insulating refractories suppliers based in Belgium
- Insulating refractories suppliers based in Brazil
- Insulating refractories suppliers based in Canada
- Insulating refractories suppliers based in France
- Insulating refractories suppliers based in Germany
- Insulating refractories suppliers based in India
- Insulating refractories suppliers based in Italy
- Insulating refractories suppliers based in the Netherlands
- Insulating refractories suppliers based in Spain
- Insulating refractories suppliers based in the United Kingdom
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
- Insulating refractories suppliers based in Australia
- Insulating refractories suppliers based in Belgium
- Insulating refractories suppliers based in Brazil
- Insulating refractories suppliers based in Canada
- Insulating refractories suppliers based in France
- Insulating refractories suppliers based in Germany
Company intelligence · public preview
Top 25 insulating refractories suppliers 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 194 matching company records for insulating refractories suppliers based in the United States, with 3,767 tracked contacts and 1,302 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 27, 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 insulating refractories suppliers 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 | Harbisonwalker Internationalthinkhwi.com HQ: Pittsburgh, PA, United StatesReported employees: 1,001-5,000 | Pittsburgh, PA, United States | 1,001-5,000 | Exact match | 781 contacts → |
“HWI is the largest supplier of refractory products and services in the United States, with a history that spans more than 150 years.” Recorded description excerpt · October 27, 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 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | 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 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | 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 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | 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 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | 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 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Magneco Metrelmagneco-metrel.com HQ: Deerfield, IL, United StatesReported employees: 51-200 | Deerfield, IL, United States | 51-200 | Exact match | 90 contacts → |
“Magneco/Metrel, Inc.(MMI) is a worldwide refractory manufacturer with headquarters in Deerfield, Illinois, USA.” Recorded description excerpt · October 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | 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 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Plibrico Companyplibrico.com HQ: Northbrook, IL, United StatesReported employees: 51-200 | Northbrook, IL, United States | 51-200 | Exact match | 78 contacts → |
“Plibrico offers a full line of monolithic refractories, insulating firebrick and complementary refractory products.” Recorded description excerpt · October 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | United Refractories COurc4u.com HQ: Mcmurray, PA, United StatesReported employees: 201-500 | Mcmurray, PA, United States | 201-500 | Exact match | 51 contacts → |
“OUTSTANDING QUALITY, PROVEN TECHNOLOGY, & CUSTOMER-FOCUSED SERVICE FOR 50 YEARS.” Recorded description excerpt · October 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | The Nelson Companiesnelsoninsulation.com HQ: Lake Zurich, IL, United StatesReported employees: 51-200 | Lake Zurich, IL, United States | 51-200 | Exact match | 50 contacts → |
“Founded in 1958, The Nelson Companies is a family of independently operated specialty contracting businesses serving commercial, industrial, healthcare, education, manufacturing…” Recorded description excerpt · October 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Pacor INCpacorinc.com HQ: Bordentown, NJ, United StatesReported employees: 51-200 | Bordentown, NJ, United States | 51-200 | Exact match | 47 contacts → |
“With fabricating facilities in New Jersey, North Carolina and Georgia, Pacor custom fabricates and distributes fiberglass, aerogel, ceramic and foam industrial insulation products…” Recorded description excerpt · October 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Wahl Refractory Solutionswahlref.com HQ: Fremont, OH, United StatesReported employees: 51-200 | Fremont, OH, United States | 51-200 | Exact match | 42 contacts → |
“Under the Fosbel family of companies, Wahl Refractory Solutions was originally founded by Oscar C.” Recorded description excerpt · October 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Lvr, INClvrinc.com HQ: Northampton, PA, United StatesReported employees: 51-200 | Northampton, PA, United States | 51-200 | Exact match | 41 contacts → |
“Superior Refractory Solutions, Expertise in the Safe Removal, Installation, and Supply of Refractories and Industrial Insulation.” Recorded description excerpt · October 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Insul-Therm International INCinsultherm.com HQ: Commerce, CA, United StatesReported employees: 51-200 | Commerce, CA, United States | 51-200 | Exact match | 39 contacts → |
“Insul-Therm Intl.” Recorded description excerpt · October 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Onex Constructiononexconstruction.com HQ: Streetsboro, OH, United StatesReported employees: 11-50 | Streetsboro, OH, United States | 11-50 | Exact match | 38 contacts → |
“Onex is a global industrial refractory contractor, project manager, and material supplier.” Recorded description excerpt · October 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Thermbond Refractory Solutionsthermbond.com HQ: Tonawanda, NY, United StatesReported employees: 51-200 | Tonawanda, NY, United States | 51-200 | Exact match | 31 contacts → |
“Stellar Materials incorporated in 1990, and first began manufacturing Thermbond Refractory Solutions in Detroit, Michigan.” Recorded description excerpt · October 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | GUY Nielson Company Industrial Division INCguynielson.com HQ: Pocatello, ID, United StatesReported employees: 51-200 | Pocatello, ID, United States | 51-200 | Exact match | 30 contacts → |
“Guy Nielson Company is a Refractory Contractor based out of Pocatello, Idaho.” Recorded description excerpt · October 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | BNZ Materialsbnzmaterials.com HQ: Zelienople, PA, United StatesReported employees: 51-200 | Zelienople, PA, United States | 51-200 | Exact match | 27 contacts → |
“BNZ Materials is a world leading manufacturer of specialty industrial insulation materials with over 16 types of Insulating FireBricks available for use in applications from to…” Recorded description excerpt · October 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Mt. Savage Specialty Refractoriesmtsavage.com HQ: Ingomar, PA, United StatesReported employees: 51-200 | Ingomar, PA, United States | 51-200 | Exact match | 26 contacts → |
“Founded in 1975, Mt.” Recorded description excerpt · October 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Upstate Refractory Services NOW Onex, INCupstaterefractory.com HQ: Newark, NY, United StatesReported employees: 11-50 | Newark, NY, United States | 11-50 | Exact match | 26 contacts → |
“Upstate Refractory Services, now part of Onex, Inc, is a full-service refractory contractor, installer, distributor, and furnace solutions provider serving customers throughout…” Recorded description excerpt · October 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Fi-Foilfifoil.com HQ: Auburndale, United StatesReported employees: 11-50 | Auburndale, United States | 11-50 | Exact match | 25 contacts → |
“A leader in the industry, FI-FOIL® manufactures high-performance reflective insulation products and systems.” Recorded description excerpt · October 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Momper Insulationmomper.com HQ: Fort Wayne, IN, United StatesReported employees: 11-50 | Fort Wayne, IN, United States | 11-50 | Exact match | 25 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 24 | Carbon Composites INCcarboncompositesinc.com HQ: Leominster, MA, United StatesReported employees: 11-50 | Leominster, MA, United States | 11-50 | Exact match | 24 contacts → |
“Carbon Composites, Inc, is an established name in the world of high temperature graphite furnace insulation and carbon/carbon composites, specializing in the design and…” Recorded description excerpt · October 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Southwest Refractoryswr-us.com HQ: Alvin, TX, United StatesReported employees: 51-200 | Alvin, TX, United States | 51-200 | Exact match | 24 contacts → |
“Southwest Refractory delivers the world’s highest quality refractory, acid proofing, industrial masonry and fireproofing services.” Recorded description excerpt · October 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 194 company matches
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Insulating refractories suppliers: dataset insights
October 27, 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
193 records in the displayed employee bands.
1 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 194 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 27, 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 ↗
Questions about this company list
What does Exact match mean for insulating refractories suppliers?
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 insulating refractories suppliers did RevenueBase find based in the United States?
The saved snapshot records 194 matching company records, 3,767 tracked contacts and 1,302 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 27, 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
Insulating refractories suppliers by geography
- Insulating refractories suppliers based in Australia
- Insulating refractories suppliers based in Belgium
- Insulating refractories suppliers based in Brazil
- Insulating refractories suppliers based in Canada
- Insulating refractories suppliers based in France
- Insulating refractories suppliers based in Germany
- Insulating refractories suppliers based in India
- Insulating refractories suppliers based in Italy
- Insulating refractories suppliers based in the Netherlands
- Insulating refractories suppliers based in Spain
- Insulating refractories suppliers based in the United Kingdom
Cite this list
RevenueBase Data Team. Top 25 insulating refractories suppliers based in the United States. Snapshot: October 27, 2026. https://revenuebase.ai/companies/insulating-refractories-suppliers/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
- Insulating refractories suppliers based in Australia
- Insulating refractories suppliers based in Belgium
- Insulating refractories suppliers based in Brazil
- Insulating refractories suppliers based in Canada
- Insulating refractories suppliers based in France
- Insulating refractories suppliers based in Germany
Company intelligence · public preview
Top 25 insulating refractories suppliers based in the United States
RevenueBase records 194 matching company records for insulating refractories suppliers based in the United States, with 3,767 tracked contacts and 1,302 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 27, 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 insulating refractories suppliers 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 | Harbisonwalker Internationalthinkhwi.com HQ: Pittsburgh, PA, United StatesReported employees: 1,001-5,000 | Pittsburgh, PA, United States | 1,001-5,000 | Exact match | 781 contacts → |
“HWI is the largest supplier of refractory products and services in the United States, with a history that spans more than 150 years.” Recorded description excerpt · October 27, 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 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | 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 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | 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 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | 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 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | 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 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Magneco Metrelmagneco-metrel.com HQ: Deerfield, IL, United StatesReported employees: 51-200 | Deerfield, IL, United States | 51-200 | Exact match | 90 contacts → |
“Magneco/Metrel, Inc.(MMI) is a worldwide refractory manufacturer with headquarters in Deerfield, Illinois, USA.” Recorded description excerpt · October 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | 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 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Plibrico Companyplibrico.com HQ: Northbrook, IL, United StatesReported employees: 51-200 | Northbrook, IL, United States | 51-200 | Exact match | 78 contacts → |
“Plibrico offers a full line of monolithic refractories, insulating firebrick and complementary refractory products.” Recorded description excerpt · October 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | United Refractories COurc4u.com HQ: Mcmurray, PA, United StatesReported employees: 201-500 | Mcmurray, PA, United States | 201-500 | Exact match | 51 contacts → |
“OUTSTANDING QUALITY, PROVEN TECHNOLOGY, & CUSTOMER-FOCUSED SERVICE FOR 50 YEARS.” Recorded description excerpt · October 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | The Nelson Companiesnelsoninsulation.com HQ: Lake Zurich, IL, United StatesReported employees: 51-200 | Lake Zurich, IL, United States | 51-200 | Exact match | 50 contacts → |
“Founded in 1958, The Nelson Companies is a family of independently operated specialty contracting businesses serving commercial, industrial, healthcare, education, manufacturing…” Recorded description excerpt · October 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Pacor INCpacorinc.com HQ: Bordentown, NJ, United StatesReported employees: 51-200 | Bordentown, NJ, United States | 51-200 | Exact match | 47 contacts → |
“With fabricating facilities in New Jersey, North Carolina and Georgia, Pacor custom fabricates and distributes fiberglass, aerogel, ceramic and foam industrial insulation products…” Recorded description excerpt · October 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Wahl Refractory Solutionswahlref.com HQ: Fremont, OH, United StatesReported employees: 51-200 | Fremont, OH, United States | 51-200 | Exact match | 42 contacts → |
“Under the Fosbel family of companies, Wahl Refractory Solutions was originally founded by Oscar C.” Recorded description excerpt · October 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Lvr, INClvrinc.com HQ: Northampton, PA, United StatesReported employees: 51-200 | Northampton, PA, United States | 51-200 | Exact match | 41 contacts → |
“Superior Refractory Solutions, Expertise in the Safe Removal, Installation, and Supply of Refractories and Industrial Insulation.” Recorded description excerpt · October 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Insul-Therm International INCinsultherm.com HQ: Commerce, CA, United StatesReported employees: 51-200 | Commerce, CA, United States | 51-200 | Exact match | 39 contacts → |
“Insul-Therm Intl.” Recorded description excerpt · October 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Onex Constructiononexconstruction.com HQ: Streetsboro, OH, United StatesReported employees: 11-50 | Streetsboro, OH, United States | 11-50 | Exact match | 38 contacts → |
“Onex is a global industrial refractory contractor, project manager, and material supplier.” Recorded description excerpt · October 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Thermbond Refractory Solutionsthermbond.com HQ: Tonawanda, NY, United StatesReported employees: 51-200 | Tonawanda, NY, United States | 51-200 | Exact match | 31 contacts → |
“Stellar Materials incorporated in 1990, and first began manufacturing Thermbond Refractory Solutions in Detroit, Michigan.” Recorded description excerpt · October 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | GUY Nielson Company Industrial Division INCguynielson.com HQ: Pocatello, ID, United StatesReported employees: 51-200 | Pocatello, ID, United States | 51-200 | Exact match | 30 contacts → |
“Guy Nielson Company is a Refractory Contractor based out of Pocatello, Idaho.” Recorded description excerpt · October 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | BNZ Materialsbnzmaterials.com HQ: Zelienople, PA, United StatesReported employees: 51-200 | Zelienople, PA, United States | 51-200 | Exact match | 27 contacts → |
“BNZ Materials is a world leading manufacturer of specialty industrial insulation materials with over 16 types of Insulating FireBricks available for use in applications from to…” Recorded description excerpt · October 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Mt. Savage Specialty Refractoriesmtsavage.com HQ: Ingomar, PA, United StatesReported employees: 51-200 | Ingomar, PA, United States | 51-200 | Exact match | 26 contacts → |
“Founded in 1975, Mt.” Recorded description excerpt · October 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Upstate Refractory Services NOW Onex, INCupstaterefractory.com HQ: Newark, NY, United StatesReported employees: 11-50 | Newark, NY, United States | 11-50 | Exact match | 26 contacts → |
“Upstate Refractory Services, now part of Onex, Inc, is a full-service refractory contractor, installer, distributor, and furnace solutions provider serving customers throughout…” Recorded description excerpt · October 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Fi-Foilfifoil.com HQ: Auburndale, United StatesReported employees: 11-50 | Auburndale, United States | 11-50 | Exact match | 25 contacts → |
“A leader in the industry, FI-FOIL® manufactures high-performance reflective insulation products and systems.” Recorded description excerpt · October 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Momper Insulationmomper.com HQ: Fort Wayne, IN, United StatesReported employees: 11-50 | Fort Wayne, IN, United States | 11-50 | Exact match | 25 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 24 | Carbon Composites INCcarboncompositesinc.com HQ: Leominster, MA, United StatesReported employees: 11-50 | Leominster, MA, United States | 11-50 | Exact match | 24 contacts → |
“Carbon Composites, Inc, is an established name in the world of high temperature graphite furnace insulation and carbon/carbon composites, specializing in the design and…” Recorded description excerpt · October 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Southwest Refractoryswr-us.com HQ: Alvin, TX, United StatesReported employees: 51-200 | Alvin, TX, United States | 51-200 | Exact match | 24 contacts → |
“Southwest Refractory delivers the world’s highest quality refractory, acid proofing, industrial masonry and fireproofing services.” Recorded description excerpt · October 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 194 company matches
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Insulating refractories suppliers: dataset insights
October 27, 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
193 records in the displayed employee bands.
1 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 194 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 27, 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 ↗
Questions about this company list
What does Exact match mean for insulating refractories suppliers?
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 insulating refractories suppliers did RevenueBase find based in the United States?
The saved snapshot records 194 matching company records, 3,767 tracked contacts and 1,302 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 27, 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
Insulating refractories suppliers by geography
- Insulating refractories suppliers based in Australia
- Insulating refractories suppliers based in Belgium
- Insulating refractories suppliers based in Brazil
- Insulating refractories suppliers based in Canada
- Insulating refractories suppliers based in France
- Insulating refractories suppliers based in Germany
- Insulating refractories suppliers based in India
- Insulating refractories suppliers based in Italy
- Insulating refractories suppliers based in the Netherlands
- Insulating refractories suppliers based in Spain
- Insulating refractories suppliers based in the United Kingdom
Cite this list
RevenueBase Data Team. Top 25 insulating refractories suppliers based in the United States. Snapshot: October 27, 2026. https://revenuebase.ai/companies/insulating-refractories-suppliers/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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- Insulating refractories suppliers based in France
- Insulating refractories suppliers based in Germany