Company lists · Data refreshed November 2026
Top 25 Transformer oil or insulating oil suppliers based in the United States
RevenueBase identified 71 company matches for transformer oil or insulating oil suppliers associated with the United States as of November 2026 and tracks 2,843 professional contacts across them, including 640 with verified work emails. Houston is the largest hub.
This list covers company matches for transformer oil or insulating oil 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 November 2, 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 transformer oil or insulating oil suppliers based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 1,023 contacts → | ||||
Exact match “Howard Industries is the leading manufacturer of liquid-filled distribution transformers for the utility and commercial/industrial markets.” Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase | |||||
| 2 | 311 contacts → | ||||
Exact match “Maddox serves the commercial, industrial, utility, and renewables segments of the transformer market.” Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase | |||||
| 3 | 212 contacts → | ||||
Exact match “HD Hyundai Power Transformers USA, Inc, a subsidiary of HD Hyundai Electric Systems, stands as a premier transformer manufacturer located in Montgomery, Alabama.” Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase | |||||
| 4 | 172 contacts → | ||||
Exact match “Power Partners is a leading manufacturer of distribution transformers in North America.” Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase | |||||
| 5 | 165 contacts → | ||||
Exact match “Solomon Corporation buys, sells, repairs, recycles, and disposes of transformers, regulators and reclosers.” Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase | |||||
| 6 | 142 contacts → | ||||
Exact match “Emerald Transformer is the premier national single-source solution for oil-filled electrical equipment with services including repair, re-manufacturing, field technical services…” Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase | |||||
| 7 | 48 contacts → | ||||
Exact match “We collaborate with customers to deliver cost-effective, well-developed commercial transformer and industrial transformer solutions that meet unique specifications.” Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase | |||||
| 8 | 38 contacts → | ||||
Exact match “T&R Electric Supply Company buys, sells, rents, and repairs distribution and power class transformers, along with medium and high voltage switchgear.” Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase | |||||
| 9 | 35 contacts → | ||||
Exact match “ITEC, a MacLean Power Systems (MPS) company, specializes in the design and manufacture of dry and oil-filled transformers, ensuring the safety and reliability of electrical…” Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase | |||||
| 10 | 34 contacts → | ||||
Exact match “Gerome Technologies Inc.” Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase | |||||
| 11 | 33 contacts → | ||||
Exact match “Sunbelt Transformer is one of the world’s largest providers of new and reconditioned transformers and electrical equipment for commercial and industrial markets worldwide.” Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase | |||||
| 12 | 32 contacts → | ||||
Exact match “Excelling with experience dating back to the 1970's, while continuously adopting the latest technology.” Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase | |||||
| 13 | 31 contacts → | ||||
Exact match “CORE Transformers is the premier supplier of electrical distribution transformers for the commercial, industrial, renewable, and critical power markets.” Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase | |||||
| 14 | 29 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase | |||||
| 15 | 27 contacts → | ||||
Exact match “Alamo Transformer Supply Company (ATSCO) began operation in March of 1963 in San Antonio, Texas.” Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase | |||||
| 16 | 26 contacts → | ||||
Exact match “Jefferson Electric delivers precision-engineered transformer solutions trusted across industrial, commercial, and utility markets.” Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase | |||||
| 17 | 22 contacts → | ||||
Exact match “Equisales provides domestic and international utilities, power plants and industrial customers with time-critical high voltage transformers and substation equipment while…” Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase | |||||
| 18 | 21 contacts → | ||||
Exact match “UTB is among the top dealers of liquid filled electrical transformers in the nation.” Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase | |||||
| 19 | 16 contacts → | ||||
Exact match “EMID is a leading supplier of high-quality insulation materials and repair products to the electric power industry.” Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase | |||||
| 20 | 15 contacts → | ||||
Exact match “Four R Marketing has combined experiences of more than 100 years, Four R Marketing, LLC is committed to providing quality base oils, process oils, transformer oils and various…” Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase | |||||
| 21 | 14 contacts → | ||||
Exact match “Signal Fluid Solutions, through its strategic supplier partnerships, has earned a reputation as a dependable supplier of high quality process oils, food grade white oils…” Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase | |||||
| 22 | 13 contacts → | ||||
Exact match “PEI has produced and distributed quality electrical insulating materials for both the OEM and repair markets.” Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase | |||||
| 23 | 13 contacts → | ||||
Exact match “Nix Electric Company (NECO) of Lubbock, Texas is a company specializing in the manufacturing, service and sales of Oil Cooled and Dry type power transformers.” Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase | |||||
| 24 | 9 contacts → | ||||
Exact match “G&S Technologies, part of the G&S Family of Companies, is the North American leader in the removal, recycling, disposal and repair of transformers and other oil-filled electrical…” Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase | |||||
| 25 | 7 contacts → | ||||
Exact match “TCI of NY is your one-stop solution for recycling, disposal and repair of transformers and other oil-filled electrical equipment, bulk and drummed oils and PILC cable, as well as…” Recorded in the RevenueBase company graph · Nov 2, 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 “transformer oil or insulating oil 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 71 transformer oil or insulating oil suppliers based in the United States
See the full list, filter by size, metro and specialty, and access 640 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Transformer oil or insulating oil suppliers based in the United States at a glance
As of Nov 2, 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 71 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 “transformer oil or insulating oil 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 640 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 November 2, 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 “transformer oil or insulating oil suppliers”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many transformer oil or insulating oil suppliers are there based in the United States?
RevenueBase identified 71 company matches for transformer oil or insulating oil suppliers associated with the United States as of November 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?
Howard Industries tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city has the most transformer oil or insulating oil suppliers?
Houston leads with 5 company records, followed by Athens (2) and Canton (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 640 professional contacts with verified work emails tracked across these 71 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 November 2, 2026.
Ready to reach these companies? Verified emails and direct dials for all 71 transformer oil or insulating oil suppliers based in the United States. Start with a free account, no credit card.
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Transformer oil or insulating oil suppliers by geography
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
- Transformer oil or insulating oil suppliers based in Brazil
- Transformer oil or insulating oil suppliers based in India
- Transformer oil or insulating oil suppliers based in Türkiye
- AI companies based in the United States
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Company intelligence · public preview
Top 25 transformer oil or insulating oil 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 71 matching company records for transformer oil or insulating oil suppliers based in the United States, with 2,843 tracked contacts and 640 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: November 2, 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 transformer oil or insulating oil 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 |  Howard Industrieshoward.comHQ: Ellisville, MS, United StatesReported employees: 1,001-5,000 | Ellisville, MS, United States | 1,001-5,000 | Exact match | 1,023 contacts → |
“Howard Industries is the leading manufacturer of liquid-filled distribution transformers for the utility and commercial/industrial markets.” Recorded description excerpt · November 2, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Maddox Industrial Transformermaddox.com HQ: Greer, ID, United StatesReported employees: 201-500 | Greer, ID, United States | 201-500 | Exact match | 311 contacts → |
“Maddox serves the commercial, industrial, utility, and renewables segments of the transformer market.” Recorded description excerpt · November 2, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | HD Hyundai Power Transformers Usa, INChhiamerica.com HQ: Montgomery, AL, United StatesReported employees: 201-500 | Montgomery, AL, United States | 201-500 | Exact match | 212 contacts → |
“HD Hyundai Power Transformers USA, Inc, a subsidiary of HD Hyundai Electric Systems, stands as a premier transformer manufacturer located in Montgomery, Alabama.” Recorded description excerpt · November 2, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Power Partnerspowerpartners-usa.com HQ: Athens, GA, United StatesReported employees: 1,001-5,000 | Athens, GA, United States | 1,001-5,000 | Exact match | 172 contacts → |
“Power Partners is a leading manufacturer of distribution transformers in North America.” Recorded description excerpt · November 2, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Solomon Corporationsolomoncorp.com HQ: Solomon, TN, United StatesReported employees: 501-1,000 | Solomon, TN, United States | 501-1,000 | Exact match | 165 contacts → |
“Solomon Corporation buys, sells, repairs, recycles, and disposes of transformers, regulators and reclosers.” Recorded description excerpt · November 2, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Emerald Transformeremeraldtransformer.com HQ: Mckinney, AZ, United StatesReported employees: 201-500 | Mckinney, AZ, United States | 201-500 | Exact match | 142 contacts → |
“Emerald Transformer is the premier national single-source solution for oil-filled electrical equipment with services including repair, re-manufacturing, field technical services…” Recorded description excerpt · November 2, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Meta Power Solutionsmetapowersolutions.com HQ: Lake Park, FL, United StatesReported employees: 51-200 | Lake Park, FL, United States | 51-200 | Exact match | 48 contacts → |
“We collaborate with customers to deliver cost-effective, well-developed commercial transformer and industrial transformer solutions that meet unique specifications.” Recorded description excerpt · November 2, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | T & R Electric Supply Co., INCtrelectric.com HQ: Colman, SD, United StatesReported employees: 51-200 | Colman, SD, United States | 51-200 | Exact match | 38 contacts → |
“T&R Electric Supply Company buys, sells, rents, and repairs distribution and power class transformers, along with medium and high voltage switchgear.” Recorded description excerpt · November 2, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | HQ: Monroe, NC, United StatesReported employees: 51-200 | Monroe, NC, United States | 51-200 | Exact match | 35 contacts → |
“ITEC, a MacLean Power Systems (MPS) company, specializes in the design and manufacture of dry and oil-filled transformers, ensuring the safety and reliability of electrical…” Recorded description excerpt · November 2, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Gerome Technologiesgerometech.com HQ: Menands, NY, United StatesReported employees: 51-200 | Menands, NY, United States | 51-200 | Exact match | 34 contacts → |
“Gerome Technologies Inc.” Recorded description excerpt · November 2, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Sunbelt Transformersunbeltusa.com HQ: Temple, CO, United StatesReported employees: 51-200 | Temple, CO, United States | 51-200 | Exact match | 33 contacts → |
“Sunbelt Transformer is one of the world’s largest providers of new and reconditioned transformers and electrical equipment for commercial and industrial markets worldwide.” Recorded description excerpt · November 2, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | OTC Services INCotcservices.com HQ: Louisville, OH, United StatesReported employees: 51-200 | Louisville, OH, United States | 51-200 | Exact match | 32 contacts → |
“Excelling with experience dating back to the 1970's, while continuously adopting the latest technology.” Recorded description excerpt · November 2, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Core Transformerscoretransformers.com HQ: Seneca, SC, United StatesReported employees: 11-50 | Seneca, SC, United States | 11-50 | Exact match | 31 contacts → |
“CORE Transformers is the premier supplier of electrical distribution transformers for the commercial, industrial, renewable, and critical power markets.” Recorded description excerpt · November 2, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Electrolock, INCelectrolock.com HQ: Hiram, OH, United StatesReported employees: 11-50 | Hiram, OH, United States | 11-50 | Exact match | 29 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 15 | Alamo Transformeralamotransformer.com HQ: San Antonio, TX, United StatesReported employees: 51-200 | San Antonio, TX, United States | 51-200 | Exact match | 27 contacts → |
“Alamo Transformer Supply Company (ATSCO) began operation in March of 1963 in San Antonio, Texas.” Recorded description excerpt · November 2, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Jefferson Electric, A Voltaris Companyvoltarispower.com HQ: Goodyear, AZ, United StatesReported employees: 501-1,000 | Goodyear, AZ, United States | 501-1,000 | Exact match | 26 contacts → |
“Jefferson Electric delivers precision-engineered transformer solutions trusted across industrial, commercial, and utility markets.” Recorded description excerpt · November 2, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  Equisales Associatesequisales.comHQ: Houston, TX, United StatesReported employees: 11-50 | Houston, TX, United States | 11-50 | Exact match | 22 contacts → |
“Equisales provides domestic and international utilities, power plants and industrial customers with time-critical high voltage transformers and substation equipment while…” Recorded description excerpt · November 2, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | UTB Transformersutbtransformers.com HQ: Nephi, UT, United StatesReported employees: 1-10 | Nephi, UT, United States | 1-10 | Exact match | 21 contacts → |
“UTB is among the top dealers of liquid filled electrical transformers in the nation.” Recorded description excerpt · November 2, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Emid, LLCemid-llc.com HQ: Miami, FL, United StatesReported employees: 11-50 | Miami, FL, United States | 11-50 | Exact match | 16 contacts → |
“EMID is a leading supplier of high-quality insulation materials and repair products to the electric power industry.” Recorded description excerpt · November 2, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Four R Marketingfourrmarketing.com HQ: Smackover, AR, United StatesReported employees: 11-50 | Smackover, AR, United States | 11-50 | Exact match | 15 contacts → |
“Four R Marketing has combined experiences of more than 100 years, Four R Marketing, LLC is committed to providing quality base oils, process oils, transformer oils and various…” Recorded description excerpt · November 2, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Signal Fluid Solutionssignalfluidsolutions.com HQ: Riverside, CA, United StatesReported employees: 11-50 | Riverside, CA, United States | 11-50 | Exact match | 14 contacts → |
“Signal Fluid Solutions, through its strategic supplier partnerships, has earned a reputation as a dependable supplier of high quality process oils, food grade white oils…” Recorded description excerpt · November 2, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Pittsburgh Electrical Insulation PEIpeipittsburgh.com HQ: Munhall, PA, United StatesReported employees: 11-50 | Munhall, PA, United States | 11-50 | Exact match | 13 contacts → |
“PEI has produced and distributed quality electrical insulating materials for both the OEM and repair markets.” Recorded description excerpt · November 2, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | NIX Electric COnixelectric.com HQ: Lubbock, TX, United StatesReported employees: 51-200 | Lubbock, TX, United States | 51-200 | Exact match | 13 contacts → |
“Nix Electric Company (NECO) of Lubbock, Texas is a company specializing in the manufacturing, service and sales of Oil Cooled and Dry type power transformers.” Recorded description excerpt · November 2, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | G&s Technologiesgstechnologies.com HQ: Kearny, NJ, United StatesReported employees: 51-200 | Kearny, NJ, United States | 51-200 | Exact match | 9 contacts → |
“G&S Technologies, part of the G&S Family of Companies, is the North American leader in the removal, recycling, disposal and repair of transformers and other oil-filled electrical…” Recorded description excerpt · November 2, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | TCI Of Ny, LLCtci-ny.com HQ: Hudson, NY, United StatesReported employees: 11-50 | Hudson, NY, United States | 11-50 | Exact match | 7 contacts → |
“TCI of NY is your one-stop solution for recycling, disposal and repair of transformers and other oil-filled electrical equipment, bulk and drummed oils and PILC cable, as well as…” Recorded description excerpt · November 2, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 71 company matches
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Transformer oil or insulating oil suppliers: dataset insights
November 2, 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
71 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 71 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: November 2, 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 transformer oil or insulating oil 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 transformer oil or insulating oil suppliers did RevenueBase find based in the United States?
The saved snapshot records 71 matching company records, 2,843 tracked contacts and 640 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: November 2, 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
Transformer oil or insulating oil suppliers by geography
Cite this list
RevenueBase Data Team. Top 25 transformer oil or insulating oil suppliers based in the United States. Snapshot: November 2, 2026. https://revenuebase.ai/companies/transformer-oil-or-insulating-oil-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
- Transformer oil or insulating oil suppliers based in Brazil
- Transformer oil or insulating oil suppliers based in India
- Transformer oil or insulating oil suppliers based in Türkiye
- AI companies based in the United States
- Cybersecurity companies based in the United States
- Manufacturing companies based in the United States
Company intelligence · public preview
Top 25 transformer oil or insulating oil suppliers based in the United States
RevenueBase records 71 matching company records for transformer oil or insulating oil suppliers based in the United States, with 2,843 tracked contacts and 640 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: November 2, 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 transformer oil or insulating oil 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 | Howard Industrieshoward.com HQ: Ellisville, MS, United StatesReported employees: 1,001-5,000 | Ellisville, MS, United States | 1,001-5,000 | Exact match | 1,023 contacts → |
“Howard Industries is the leading manufacturer of liquid-filled distribution transformers for the utility and commercial/industrial markets.” Recorded description excerpt · November 2, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Maddox Industrial Transformermaddox.com HQ: Greer, ID, United StatesReported employees: 201-500 | Greer, ID, United States | 201-500 | Exact match | 311 contacts → |
“Maddox serves the commercial, industrial, utility, and renewables segments of the transformer market.” Recorded description excerpt · November 2, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | HD Hyundai Power Transformers Usa, INChhiamerica.com HQ: Montgomery, AL, United StatesReported employees: 201-500 | Montgomery, AL, United States | 201-500 | Exact match | 212 contacts → |
“HD Hyundai Power Transformers USA, Inc, a subsidiary of HD Hyundai Electric Systems, stands as a premier transformer manufacturer located in Montgomery, Alabama.” Recorded description excerpt · November 2, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Power Partnerspowerpartners-usa.com HQ: Athens, GA, United StatesReported employees: 1,001-5,000 | Athens, GA, United States | 1,001-5,000 | Exact match | 172 contacts → |
“Power Partners is a leading manufacturer of distribution transformers in North America.” Recorded description excerpt · November 2, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Solomon Corporationsolomoncorp.com HQ: Solomon, TN, United StatesReported employees: 501-1,000 | Solomon, TN, United States | 501-1,000 | Exact match | 165 contacts → |
“Solomon Corporation buys, sells, repairs, recycles, and disposes of transformers, regulators and reclosers.” Recorded description excerpt · November 2, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Emerald Transformeremeraldtransformer.com HQ: Mckinney, AZ, United StatesReported employees: 201-500 | Mckinney, AZ, United States | 201-500 | Exact match | 142 contacts → |
“Emerald Transformer is the premier national single-source solution for oil-filled electrical equipment with services including repair, re-manufacturing, field technical services…” Recorded description excerpt · November 2, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Meta Power Solutionsmetapowersolutions.com HQ: Lake Park, FL, United StatesReported employees: 51-200 | Lake Park, FL, United States | 51-200 | Exact match | 48 contacts → |
“We collaborate with customers to deliver cost-effective, well-developed commercial transformer and industrial transformer solutions that meet unique specifications.” Recorded description excerpt · November 2, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | T & R Electric Supply Co., INCtrelectric.com HQ: Colman, SD, United StatesReported employees: 51-200 | Colman, SD, United States | 51-200 | Exact match | 38 contacts → |
“T&R Electric Supply Company buys, sells, rents, and repairs distribution and power class transformers, along with medium and high voltage switchgear.” Recorded description excerpt · November 2, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | HQ: Monroe, NC, United StatesReported employees: 51-200 | Monroe, NC, United States | 51-200 | Exact match | 35 contacts → |
“ITEC, a MacLean Power Systems (MPS) company, specializes in the design and manufacture of dry and oil-filled transformers, ensuring the safety and reliability of electrical…” Recorded description excerpt · November 2, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Gerome Technologiesgerometech.com HQ: Menands, NY, United StatesReported employees: 51-200 | Menands, NY, United States | 51-200 | Exact match | 34 contacts → |
“Gerome Technologies Inc.” Recorded description excerpt · November 2, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Sunbelt Transformersunbeltusa.com HQ: Temple, CO, United StatesReported employees: 51-200 | Temple, CO, United States | 51-200 | Exact match | 33 contacts → |
“Sunbelt Transformer is one of the world’s largest providers of new and reconditioned transformers and electrical equipment for commercial and industrial markets worldwide.” Recorded description excerpt · November 2, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | OTC Services INCotcservices.com HQ: Louisville, OH, United StatesReported employees: 51-200 | Louisville, OH, United States | 51-200 | Exact match | 32 contacts → |
“Excelling with experience dating back to the 1970's, while continuously adopting the latest technology.” Recorded description excerpt · November 2, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Core Transformerscoretransformers.com HQ: Seneca, SC, United StatesReported employees: 11-50 | Seneca, SC, United States | 11-50 | Exact match | 31 contacts → |
“CORE Transformers is the premier supplier of electrical distribution transformers for the commercial, industrial, renewable, and critical power markets.” Recorded description excerpt · November 2, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Electrolock, INCelectrolock.com HQ: Hiram, OH, United StatesReported employees: 11-50 | Hiram, OH, United States | 11-50 | Exact match | 29 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 15 | Alamo Transformeralamotransformer.com HQ: San Antonio, TX, United StatesReported employees: 51-200 | San Antonio, TX, United States | 51-200 | Exact match | 27 contacts → |
“Alamo Transformer Supply Company (ATSCO) began operation in March of 1963 in San Antonio, Texas.” Recorded description excerpt · November 2, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Jefferson Electric, A Voltaris Companyvoltarispower.com HQ: Goodyear, AZ, United StatesReported employees: 501-1,000 | Goodyear, AZ, United States | 501-1,000 | Exact match | 26 contacts → |
“Jefferson Electric delivers precision-engineered transformer solutions trusted across industrial, commercial, and utility markets.” Recorded description excerpt · November 2, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Equisales Associatesequisales.com HQ: Houston, TX, United StatesReported employees: 11-50 | Houston, TX, United States | 11-50 | Exact match | 22 contacts → |
“Equisales provides domestic and international utilities, power plants and industrial customers with time-critical high voltage transformers and substation equipment while…” Recorded description excerpt · November 2, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | UTB Transformersutbtransformers.com HQ: Nephi, UT, United StatesReported employees: 1-10 | Nephi, UT, United States | 1-10 | Exact match | 21 contacts → |
“UTB is among the top dealers of liquid filled electrical transformers in the nation.” Recorded description excerpt · November 2, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Emid, LLCemid-llc.com HQ: Miami, FL, United StatesReported employees: 11-50 | Miami, FL, United States | 11-50 | Exact match | 16 contacts → |
“EMID is a leading supplier of high-quality insulation materials and repair products to the electric power industry.” Recorded description excerpt · November 2, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Four R Marketingfourrmarketing.com HQ: Smackover, AR, United StatesReported employees: 11-50 | Smackover, AR, United States | 11-50 | Exact match | 15 contacts → |
“Four R Marketing has combined experiences of more than 100 years, Four R Marketing, LLC is committed to providing quality base oils, process oils, transformer oils and various…” Recorded description excerpt · November 2, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Signal Fluid Solutionssignalfluidsolutions.com HQ: Riverside, CA, United StatesReported employees: 11-50 | Riverside, CA, United States | 11-50 | Exact match | 14 contacts → |
“Signal Fluid Solutions, through its strategic supplier partnerships, has earned a reputation as a dependable supplier of high quality process oils, food grade white oils…” Recorded description excerpt · November 2, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Pittsburgh Electrical Insulation PEIpeipittsburgh.com HQ: Munhall, PA, United StatesReported employees: 11-50 | Munhall, PA, United States | 11-50 | Exact match | 13 contacts → |
“PEI has produced and distributed quality electrical insulating materials for both the OEM and repair markets.” Recorded description excerpt · November 2, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | NIX Electric COnixelectric.com HQ: Lubbock, TX, United StatesReported employees: 51-200 | Lubbock, TX, United States | 51-200 | Exact match | 13 contacts → |
“Nix Electric Company (NECO) of Lubbock, Texas is a company specializing in the manufacturing, service and sales of Oil Cooled and Dry type power transformers.” Recorded description excerpt · November 2, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | G&s Technologiesgstechnologies.com HQ: Kearny, NJ, United StatesReported employees: 51-200 | Kearny, NJ, United States | 51-200 | Exact match | 9 contacts → |
“G&S Technologies, part of the G&S Family of Companies, is the North American leader in the removal, recycling, disposal and repair of transformers and other oil-filled electrical…” Recorded description excerpt · November 2, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | TCI Of Ny, LLCtci-ny.com HQ: Hudson, NY, United StatesReported employees: 11-50 | Hudson, NY, United States | 11-50 | Exact match | 7 contacts → |
“TCI of NY is your one-stop solution for recycling, disposal and repair of transformers and other oil-filled electrical equipment, bulk and drummed oils and PILC cable, as well as…” Recorded description excerpt · November 2, 2026Open company data in RevenueBase ↗Free signup required. | |||||
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Transformer oil or insulating oil suppliers: dataset insights
November 2, 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
71 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 71 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: November 2, 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 transformer oil or insulating oil 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 transformer oil or insulating oil suppliers did RevenueBase find based in the United States?
The saved snapshot records 71 matching company records, 2,843 tracked contacts and 640 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: November 2, 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
Transformer oil or insulating oil suppliers by geography
Cite this list
RevenueBase Data Team. Top 25 transformer oil or insulating oil suppliers based in the United States. Snapshot: November 2, 2026. https://revenuebase.ai/companies/transformer-oil-or-insulating-oil-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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