Company lists · Data refreshed October 2026
Top 25 High voltage insulation suppliers based in the United States
RevenueBase identified 144 company matches for high voltage insulation suppliers associated with the United States as of October 2026 and tracks 5,812 professional contacts across them, including 2,169 with verified work emails. Houston is the largest hub.
This list covers company matches for high voltage insulation 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 26, 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 high voltage insulation suppliers based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 1,014 contacts → | ||||
Exact match “Mitsubishi Electric Power Products, Inc.(MEPPI) is a leading U.S.” Recorded in the RevenueBase company graph · Oct 26, 2026 · View company records in RevenueBase | |||||
| 2 | 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 26, 2026 · View company records in RevenueBase | |||||
| 3 | 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 26, 2026 · View company records in RevenueBase | |||||
| 4 | 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 26, 2026 · View company records in RevenueBase | |||||
| 5 | 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 26, 2026 · View company records in RevenueBase | |||||
| 6 | 198 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Oct 26, 2026 · View company records in RevenueBase | |||||
| 7 | 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 26, 2026 · View company records in RevenueBase | |||||
| 8 | 113 contacts → | ||||
Exact match “NOARK Electric is a global manufacturer and supplier of low, medium and high voltage electrical components for industrial and commercial applications.” Recorded in the RevenueBase company graph · Oct 26, 2026 · View company records in RevenueBase | |||||
| 9 | 92 contacts → | ||||
Exact match “Epsilyte is one of North America’s leading producers of advanced insulative materials.” Recorded in the RevenueBase company graph · Oct 26, 2026 · View company records in RevenueBase | |||||
| 10 | 59 contacts → | ||||
Exact match “Polywater is a leading, globally recognized manufacturer of field-specific solutions for essential industries like electrical and communications.” Recorded in the RevenueBase company graph · Oct 26, 2026 · View company records in RevenueBase | |||||
| 11 | 39 contacts → | ||||
Exact match “Insul-Therm Intl.” Recorded in the RevenueBase company graph · Oct 26, 2026 · View company records in RevenueBase | |||||
| 12 | 38 contacts → | ||||
Exact match “TSG Resolute is the leading provider to the major OEM marketplaces for a wide range of products that includes gaskets, thermal insulation, acoustical insulation, electrical…” Recorded in the RevenueBase company graph · Oct 26, 2026 · View company records in RevenueBase | |||||
| 13 | 35 contacts → | ||||
Exact match “Over the past 25 years General Coatings Manufacturing Corp.” Recorded in the RevenueBase company graph · Oct 26, 2026 · View company records in RevenueBase | |||||
| 14 | 35 contacts → | ||||
Exact match “Gerome Technologies Inc.” Recorded in the RevenueBase company graph · Oct 26, 2026 · View company records in RevenueBase | |||||
| 15 | 34 contacts → | ||||
Exact match “NeoInsulation: Engineering superior insulation solutions with innovative applications for today's energy infrastructure.” Recorded in the RevenueBase company graph · Oct 26, 2026 · View company records in RevenueBase | |||||
| 16 | 33 contacts → | ||||
Exact match “Insulation Contractor” Recorded in the RevenueBase company graph · Oct 26, 2026 · View company records in RevenueBase | |||||
| 17 | 30 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Oct 26, 2026 · View company records in RevenueBase | |||||
| 18 | 27 contacts → | ||||
Exact match “Since 1988 L&L Insulations has provided insulation products and specialty services to the manufacturing and construction industries throughout the Midwest.” Recorded in the RevenueBase company graph · Oct 26, 2026 · View company records in RevenueBase | |||||
| 19 | 27 contacts → | ||||
Exact match “Bondy designs, supplies and installs high and low temperature mechanical insulation for piping systems, heavy duty equipment and ductwork in commercial, institutional, industrial…” Recorded in the RevenueBase company graph · Oct 26, 2026 · View company records in RevenueBase | |||||
| 20 | 26 contacts → | ||||
Exact match “Your Insulation Partner Coverflex Manufacturing is a leading manufacturer of Removable Insulation Systems and service provider to industries such as Power Generation, Oil & Gas…” Recorded in the RevenueBase company graph · Oct 26, 2026 · View company records in RevenueBase | |||||
| 21 | 26 contacts → | ||||
Exact match “Insul-Fab, Division of Concote Corporation is a Dallas, TX based company specializing in manufacturing and supply of thermal, acoustical, and electrical insulation to OEM…” Recorded in the RevenueBase company graph · Oct 26, 2026 · View company records in RevenueBase | |||||
| 22 | 24 contacts → | ||||
Exact match “Vanguard Electric LLC: A Southern States Company is a company based out of Morrow, Georgia, United States.” Recorded in the RevenueBase company graph · Oct 26, 2026 · View company records in RevenueBase | |||||
| 23 | 23 contacts → | ||||
Exact match “MARS Transformers, LLC is a veteran owned and operated company providing innovative high voltage service and equipment solutions to the energy industry worldwide.” Recorded in the RevenueBase company graph · Oct 26, 2026 · View company records in RevenueBase | |||||
| 24 | 23 contacts → | ||||
Exact match “POWERLINE HARDWARE (PLH) is a world-class global provider of high quality Distribution & Telecom Hardware, Insulators, Cutout Switches, Anchoring and Grounding Products.” Recorded in the RevenueBase company graph · Oct 26, 2026 · View company records in RevenueBase | |||||
| 25 | 22 contacts → | ||||
Exact match “QUALITY & VALUE INNOVATION SERVICE EXCELLENCE Founded in 1979, SMC Industries, Inc.(formerly Sproule Manufacturing Company, Inc.) is a leading and innovative manufacturer of…” Recorded in the RevenueBase company graph · Oct 26, 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 “high voltage insulation 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 144 high voltage insulation suppliers based in the United States
See the full list, filter by size, metro and specialty, and access 2,169 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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High voltage insulation suppliers based in the United States at a glance
As of Oct 26, 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 144 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 “high voltage insulation 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 2,169 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 26, 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 “high voltage insulation suppliers”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many high voltage insulation suppliers are there based in the United States?
RevenueBase identified 144 company matches for high voltage insulation 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?
Mitsubishi Electric Power Products, INC tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city has the most high voltage insulation suppliers?
Houston leads with 8 company records, followed by Oklahoma City (5) and Bolingbrook (2).
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 2,169 professional contacts with verified work emails tracked across these 144 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 26, 2026.
Ready to reach these companies? Verified emails and direct dials for all 144 high voltage insulation suppliers based in the United States. Start with a free account, no credit card.
Download this list →Related lists
High voltage insulation suppliers by geography
- High voltage insulation suppliers based in Australia
- High voltage insulation suppliers based in Belgium
- High voltage insulation suppliers based in Brazil
- High voltage insulation suppliers based in Canada
- High voltage insulation suppliers based in France
- High voltage insulation suppliers based in Germany
- High voltage insulation suppliers based in India
- High voltage insulation suppliers based in Italy
- High voltage insulation suppliers based in the Netherlands
- High voltage insulation suppliers based in Spain
- High voltage insulation suppliers based in Switzerland
- High voltage insulation suppliers based in Türkiye
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
- High voltage insulation suppliers based in Australia
- High voltage insulation suppliers based in Belgium
- High voltage insulation suppliers based in Brazil
- High voltage insulation suppliers based in Canada
- High voltage insulation suppliers based in France
- High voltage insulation suppliers based in Germany
Company intelligence · public preview
Top 25 high voltage insulation 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 144 matching company records for high voltage insulation suppliers based in the United States, with 5,812 tracked contacts and 2,169 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 26, 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 high voltage insulation 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 | HQ: Warrendale, PA, United StatesReported employees: 1,001-5,000 | Warrendale, PA, United States | 1,001-5,000 | Exact match | 1,014 contacts → |
“Mitsubishi Electric Power Products, Inc.(MEPPI) is a leading U.S.” Recorded description excerpt · October 26, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  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 26, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | 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 26, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | 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 26, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | 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 26, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Aubrey Silvey Enterprises, INCsilvey.comHQ: Carrollton, GA, United StatesReported employees: 201-500 | Carrollton, GA, United States | 201-500 | Exact match | 198 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 7 | 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 26, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Noark Electricna.noark-electric.com HQ: Addison, TX, United StatesReported employees: 10001+ | Addison, TX, United States | 10001+ | Exact match | 113 contacts → |
“NOARK Electric is a global manufacturer and supplier of low, medium and high voltage electrical components for industrial and commercial applications.” Recorded description excerpt · October 26, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  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 26, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Polywaterpolywater.com HQ: Stillwater, MN, United StatesReported employees: 51-200 | Stillwater, MN, United States | 51-200 | Exact match | 59 contacts → |
“Polywater is a leading, globally recognized manufacturer of field-specific solutions for essential industries like electrical and communications.” Recorded description excerpt · October 26, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | 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 26, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | TSG Resolutetsgresolute.com HQ: Americus, GA, United StatesReported employees: 201-500 | Americus, GA, United States | 201-500 | Exact match | 38 contacts → |
“TSG Resolute is the leading provider to the major OEM marketplaces for a wide range of products that includes gaskets, thermal insulation, acoustical insulation, electrical…” Recorded description excerpt · October 26, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | General Coatings Manufacturing Corpgeneralcoatings.net HQ: Fresno, CA, United StatesReported employees: 51-200 | Fresno, CA, United States | 51-200 | Exact match | 35 contacts → |
“Over the past 25 years General Coatings Manufacturing Corp.” Recorded description excerpt · October 26, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Gerome Technologiesgerometech.com HQ: Menands, NY, United StatesReported employees: 51-200 | Menands, NY, United States | 51-200 | Exact match | 35 contacts → |
“Gerome Technologies Inc.” Recorded description excerpt · October 26, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Neoinsulationneoinsulation.com HQ: Oklahoma City, OK, United StatesReported employees: 51-200 | Oklahoma City, OK, United States | 51-200 | Exact match | 34 contacts → |
“NeoInsulation: Engineering superior insulation solutions with innovative applications for today's energy infrastructure.” Recorded description excerpt · October 26, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Thermal Insulation, INCthermal-inc.com HQ: Decatur, AL, United StatesReported employees: 51-200 | Decatur, AL, United States | 51-200 | Exact match | 33 contacts → |
“Insulation Contractor” Recorded description excerpt · October 26, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Electrolock, INCelectrolock.com HQ: Hiram, OH, United StatesReported employees: 11-50 | Hiram, OH, United States | 11-50 | Exact match | 30 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 18 | L&l Insulationsllinsulation.com HQ: Des Moines, IA, United StatesReported employees: 51-200 | Des Moines, IA, United States | 51-200 | Exact match | 27 contacts → |
“Since 1988 L&L Insulations has provided insulation products and specialty services to the manufacturing and construction industries throughout the Midwest.” Recorded description excerpt · October 26, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Bondy Insulation, LLCbondy-insulation.com HQ: Sterling Heights, MI, United StatesReported employees: 51-200 | Sterling Heights, MI, United States | 51-200 | Exact match | 27 contacts → |
“Bondy designs, supplies and installs high and low temperature mechanical insulation for piping systems, heavy duty equipment and ductwork in commercial, institutional, industrial…” Recorded description excerpt · October 26, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Coverflex Manufacturing, INCcoverflex.net HQ: Houston, TX, United StatesReported employees: 11-50 | Houston, TX, United States | 11-50 | Exact match | 26 contacts → |
“Your Insulation Partner Coverflex Manufacturing is a leading manufacturer of Removable Insulation Systems and service provider to industries such as Power Generation, Oil & Gas…” Recorded description excerpt · October 26, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Insulfab, Division Of Concote Corporationinsulfab.net HQ: Coppell, TX, United StatesReported employees: 51-200 | Coppell, TX, United States | 51-200 | Exact match | 26 contacts → |
“Insul-Fab, Division of Concote Corporation is a Dallas, TX based company specializing in manufacturing and supply of thermal, acoustical, and electrical insulation to OEM…” Recorded description excerpt · October 26, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Vanguard Electric LLCvanguardelec.com HQ: Morrow, GA, United StatesReported employees: 11-50 | Morrow, GA, United States | 11-50 | Exact match | 24 contacts → |
“Vanguard Electric LLC: A Southern States Company is a company based out of Morrow, Georgia, United States.” Recorded description excerpt · October 26, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Mars Transformers, LLCmarstransformers.com HQ: Pearland, TX, United StatesReported employees: 11-50 | Pearland, TX, United States | 11-50 | Exact match | 23 contacts → |
“MARS Transformers, LLC is a veteran owned and operated company providing innovative high voltage service and equipment solutions to the energy industry worldwide.” Recorded description excerpt · October 26, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Powerline Hardwarepowerlinehardware.com HQ: Jacksonville, FL, United StatesReported employees: 51-200 | Jacksonville, FL, United States | 51-200 | Exact match | 23 contacts → |
“POWERLINE HARDWARE (PLH) is a world-class global provider of high quality Distribution & Telecom Hardware, Insulators, Cutout Switches, Anchoring and Grounding Products.” Recorded description excerpt · October 26, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | SMC Industries, INCsmcindustries.com HQ: Malvern, PA, United StatesReported employees: 11-50 | Malvern, PA, United States | 11-50 | Exact match | 22 contacts → |
“QUALITY & VALUE INNOVATION SERVICE EXCELLENCE Founded in 1979, SMC Industries, Inc.(formerly Sproule Manufacturing Company, Inc.) is a leading and innovative manufacturer of…” Recorded description excerpt · October 26, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 144 company matches
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High voltage insulation suppliers: dataset insights
October 26, 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
144 records in the displayed employee bands.
0 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 144 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 26, 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 high voltage insulation 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 high voltage insulation suppliers did RevenueBase find based in the United States?
The saved snapshot records 144 matching company records, 5,812 tracked contacts and 2,169 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 26, 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
High voltage insulation suppliers by geography
- High voltage insulation suppliers based in Australia
- High voltage insulation suppliers based in Belgium
- High voltage insulation suppliers based in Brazil
- High voltage insulation suppliers based in Canada
- High voltage insulation suppliers based in France
- High voltage insulation suppliers based in Germany
- High voltage insulation suppliers based in India
- High voltage insulation suppliers based in Italy
- High voltage insulation suppliers based in the Netherlands
- High voltage insulation suppliers based in Spain
- High voltage insulation suppliers based in Switzerland
- High voltage insulation suppliers based in Türkiye
Cite this list
RevenueBase Data Team. Top 25 high voltage insulation suppliers based in the United States. Snapshot: October 26, 2026. https://revenuebase.ai/companies/high-voltage-insulation-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
- High voltage insulation suppliers based in Australia
- High voltage insulation suppliers based in Belgium
- High voltage insulation suppliers based in Brazil
- High voltage insulation suppliers based in Canada
- High voltage insulation suppliers based in France
- High voltage insulation suppliers based in Germany
Company intelligence · public preview
Top 25 high voltage insulation suppliers based in the United States
RevenueBase records 144 matching company records for high voltage insulation suppliers based in the United States, with 5,812 tracked contacts and 2,169 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 26, 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 high voltage insulation 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 | HQ: Warrendale, PA, United StatesReported employees: 1,001-5,000 | Warrendale, PA, United States | 1,001-5,000 | Exact match | 1,014 contacts → |
“Mitsubishi Electric Power Products, Inc.(MEPPI) is a leading U.S.” Recorded description excerpt · October 26, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | 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 26, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | 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 26, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | 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 26, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | 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 26, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Aubrey Silvey Enterprises, INCsilvey.com HQ: Carrollton, GA, United StatesReported employees: 201-500 | Carrollton, GA, United States | 201-500 | Exact match | 198 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 7 | 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 26, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Noark Electricna.noark-electric.com HQ: Addison, TX, United StatesReported employees: 10001+ | Addison, TX, United States | 10001+ | Exact match | 113 contacts → |
“NOARK Electric is a global manufacturer and supplier of low, medium and high voltage electrical components for industrial and commercial applications.” Recorded description excerpt · October 26, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | 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 26, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Polywaterpolywater.com HQ: Stillwater, MN, United StatesReported employees: 51-200 | Stillwater, MN, United States | 51-200 | Exact match | 59 contacts → |
“Polywater is a leading, globally recognized manufacturer of field-specific solutions for essential industries like electrical and communications.” Recorded description excerpt · October 26, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | 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 26, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | TSG Resolutetsgresolute.com HQ: Americus, GA, United StatesReported employees: 201-500 | Americus, GA, United States | 201-500 | Exact match | 38 contacts → |
“TSG Resolute is the leading provider to the major OEM marketplaces for a wide range of products that includes gaskets, thermal insulation, acoustical insulation, electrical…” Recorded description excerpt · October 26, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | General Coatings Manufacturing Corpgeneralcoatings.net HQ: Fresno, CA, United StatesReported employees: 51-200 | Fresno, CA, United States | 51-200 | Exact match | 35 contacts → |
“Over the past 25 years General Coatings Manufacturing Corp.” Recorded description excerpt · October 26, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Gerome Technologiesgerometech.com HQ: Menands, NY, United StatesReported employees: 51-200 | Menands, NY, United States | 51-200 | Exact match | 35 contacts → |
“Gerome Technologies Inc.” Recorded description excerpt · October 26, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Neoinsulationneoinsulation.com HQ: Oklahoma City, OK, United StatesReported employees: 51-200 | Oklahoma City, OK, United States | 51-200 | Exact match | 34 contacts → |
“NeoInsulation: Engineering superior insulation solutions with innovative applications for today's energy infrastructure.” Recorded description excerpt · October 26, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Thermal Insulation, INCthermal-inc.com HQ: Decatur, AL, United StatesReported employees: 51-200 | Decatur, AL, United States | 51-200 | Exact match | 33 contacts → |
“Insulation Contractor” Recorded description excerpt · October 26, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Electrolock, INCelectrolock.com HQ: Hiram, OH, United StatesReported employees: 11-50 | Hiram, OH, United States | 11-50 | Exact match | 30 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 18 | L&l Insulationsllinsulation.com HQ: Des Moines, IA, United StatesReported employees: 51-200 | Des Moines, IA, United States | 51-200 | Exact match | 27 contacts → |
“Since 1988 L&L Insulations has provided insulation products and specialty services to the manufacturing and construction industries throughout the Midwest.” Recorded description excerpt · October 26, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Bondy Insulation, LLCbondy-insulation.com HQ: Sterling Heights, MI, United StatesReported employees: 51-200 | Sterling Heights, MI, United States | 51-200 | Exact match | 27 contacts → |
“Bondy designs, supplies and installs high and low temperature mechanical insulation for piping systems, heavy duty equipment and ductwork in commercial, institutional, industrial…” Recorded description excerpt · October 26, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Coverflex Manufacturing, INCcoverflex.net HQ: Houston, TX, United StatesReported employees: 11-50 | Houston, TX, United States | 11-50 | Exact match | 26 contacts → |
“Your Insulation Partner Coverflex Manufacturing is a leading manufacturer of Removable Insulation Systems and service provider to industries such as Power Generation, Oil & Gas…” Recorded description excerpt · October 26, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Insulfab, Division Of Concote Corporationinsulfab.net HQ: Coppell, TX, United StatesReported employees: 51-200 | Coppell, TX, United States | 51-200 | Exact match | 26 contacts → |
“Insul-Fab, Division of Concote Corporation is a Dallas, TX based company specializing in manufacturing and supply of thermal, acoustical, and electrical insulation to OEM…” Recorded description excerpt · October 26, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Vanguard Electric LLCvanguardelec.com HQ: Morrow, GA, United StatesReported employees: 11-50 | Morrow, GA, United States | 11-50 | Exact match | 24 contacts → |
“Vanguard Electric LLC: A Southern States Company is a company based out of Morrow, Georgia, United States.” Recorded description excerpt · October 26, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Mars Transformers, LLCmarstransformers.com HQ: Pearland, TX, United StatesReported employees: 11-50 | Pearland, TX, United States | 11-50 | Exact match | 23 contacts → |
“MARS Transformers, LLC is a veteran owned and operated company providing innovative high voltage service and equipment solutions to the energy industry worldwide.” Recorded description excerpt · October 26, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Powerline Hardwarepowerlinehardware.com HQ: Jacksonville, FL, United StatesReported employees: 51-200 | Jacksonville, FL, United States | 51-200 | Exact match | 23 contacts → |
“POWERLINE HARDWARE (PLH) is a world-class global provider of high quality Distribution & Telecom Hardware, Insulators, Cutout Switches, Anchoring and Grounding Products.” Recorded description excerpt · October 26, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | SMC Industries, INCsmcindustries.com HQ: Malvern, PA, United StatesReported employees: 11-50 | Malvern, PA, United States | 11-50 | Exact match | 22 contacts → |
“QUALITY & VALUE INNOVATION SERVICE EXCELLENCE Founded in 1979, SMC Industries, Inc.(formerly Sproule Manufacturing Company, Inc.) is a leading and innovative manufacturer of…” Recorded description excerpt · October 26, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 144 company matches
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High voltage insulation suppliers: dataset insights
October 26, 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
144 records in the displayed employee bands.
0 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 144 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 26, 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 high voltage insulation 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 high voltage insulation suppliers did RevenueBase find based in the United States?
The saved snapshot records 144 matching company records, 5,812 tracked contacts and 2,169 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 26, 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
High voltage insulation suppliers by geography
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- High voltage insulation suppliers based in Türkiye
Cite this list
RevenueBase Data Team. Top 25 high voltage insulation suppliers based in the United States. Snapshot: October 26, 2026. https://revenuebase.ai/companies/high-voltage-insulation-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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