Company lists · Data refreshed November 2026
Top 25 Transformer relays suppliers based in the United States
RevenueBase identified 305 company matches for transformer relays suppliers associated with the United States as of November 2026 and tracks 22,494 professional contacts across them, including 7,053 with verified work emails. Houston is the largest hub.
This list covers company matches for transformer relays 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 relays suppliers based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 6,934 contacts → | ||||
Exact match “SEL is a globally recognized designer and manufacturer of products and solutions that make electric power safer, more reliable, and more economical.” Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase | |||||
| 2 | 2,666 contacts → | ||||
Exact match “Powell is hiring- Powell is dedicated to improving people’s lives by providing reliable power distribution systems in every market we serve.” Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase | |||||
| 3 | 2,316 contacts → | ||||
Exact match “Founded in 1953, Electrical Components International (ECI) is one of the world’s leading suppliers of electrical distribution systems, control box assemblies, and other critical…” Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase | |||||
| 4 | 1,037 contacts → | ||||
Exact match “Mitsubishi Electric Power Products, Inc.(MEPPI) is a leading U.S.” Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase | |||||
| 5 | 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 | |||||
| 6 | 245 contacts → | ||||
Exact match “Systems Control, a Hubbell brand, designs and manufactures turnkey control systems and control relays that are involved in the protection and control of transmission and…” Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase | |||||
| 7 | 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 | |||||
| 8 | 199 contacts → | ||||
Exact match “RFL is a Hubbell Power Systems brand that provides power line communication equipment and protection solutions, relaying products, application support, and customized systems.” Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase | |||||
| 9 | 192 contacts → | ||||
Exact match “Pennsylvania Transformer Technology LLC (PTT) is a US-owned, industry leading manufacturer of a wide range of sizes and types of power transformers for the investor-owned…” Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase | |||||
| 10 | 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 | |||||
| 11 | 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 | |||||
| 12 | 158 contacts → | ||||
Exact match “In 2025, Southwest Electric Co.” Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase | |||||
| 13 | 154 contacts → | ||||
Exact match “At JST Power Equipment, we pride ourselves on delivering world-class transformer and electrical equipment solutions.” Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase | |||||
| 14 | 131 contacts → | ||||
Exact match “MGM Transformers is now part of Forgent Power Solutions.” Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase | |||||
| 15 | 128 contacts → | ||||
Exact match “Malloy has established itself as a cornerstone in the electrical and power transmission industry through its consistent growth, adaptability, and commitment to quality and…” Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase | |||||
| 16 | 116 contacts → | ||||
Exact match “In 2025, Basler Electric Company was acquired by Littelfuse, Inc, a global, diversified industrial technology manufacturing company dedicated to creating a sustainable, connected…” Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase | |||||
| 17 | 112 contacts → | ||||
Exact match “E-T-A Engineering Technology is the world’s leading manufacturer of circuit breakers for equipment and is the only resource for all circuit protection technologies: thermal…” Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase | |||||
| 18 | 97 contacts → | ||||
Exact match “Welcome to Fortune Electric, a world class power transformer and switchgear manufacturer since 1969.” Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase | |||||
| 19 | 87 contacts → | ||||
Exact match “VanTran Transformers is now part of Forgent Power Solutions.” Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase | |||||
| 20 | 67 contacts → | ||||
Exact match “Lindsey Systems is recognized globally as an innovator in the electric power industry.” Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase | |||||
| 21 | 58 contacts → | ||||
Exact match “SynchroGrid is a Texas-based engineering firm specializing in protective relaying, substation design, and NERC compliance.” Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase | |||||
| 22 | 56 contacts → | ||||
Exact match “Welcome to Telex.” Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase | |||||
| 23 | 53 contacts → | ||||
Exact match “75 Years of Engineering Excellence in the Delivered Worldwide Olsun Electrics is the industry’s most trusted partner for custom dry-type transformers.” Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase | |||||
| 24 | 51 contacts → | ||||
Exact match “Southland Electrical Supply, An IPS Company, is a world class leader in Power Distribution and Low Voltage Motor Control.” Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase | |||||
| 25 | 49 contacts → | ||||
Exact match “Trantech is the most customer-oriented and largest manufacturer of transformer radiators and cooling products in North America.” 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 relays 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 305 transformer relays suppliers based in the United States
See the full list, filter by size, metro and specialty, and access 7,053 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Transformer relays 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 305 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 relays 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 7,053 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 relays suppliers”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many transformer relays suppliers are there based in the United States?
RevenueBase identified 305 company matches for transformer relays 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?
Schweitzer Engineering Laboratories SEL tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city has the most transformer relays suppliers?
Houston leads with 11 company records, followed by Louisville (5) and Anaheim (3).
How do I get contact information for these companies?
A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 7,053 professional contacts with verified work emails tracked across these 305 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 305 transformer relays suppliers based in the United States. Start with a free account, no credit card.
Download this list →Related lists
Transformer relays suppliers by geography
- Transformer relays suppliers based in Vadodara, India
- Transformer relays suppliers based in Brazil
- Transformer relays suppliers based in Canada
- Transformer relays suppliers based in France
- Transformer relays suppliers based in Germany
- Transformer relays suppliers based in India
- Transformer relays suppliers based in Italy
- Transformer relays suppliers based in South Africa
- Transformer relays suppliers based in Spain
- Transformer relays suppliers based in Türkiye
- Transformer relays suppliers based in the United Kingdom
About this data
RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase SmartSearch, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Transformer relays suppliers based in Vadodara, India
- Transformer relays suppliers based in Brazil
- Transformer relays suppliers based in Canada
- Transformer relays suppliers based in France
- Transformer relays suppliers based in Germany
- Transformer relays suppliers based in India
Company intelligence · public preview
Top 25 transformer relays 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 305 matching company records for transformer relays suppliers based in the United States, with 22,494 tracked contacts and 7,053 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 relays 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 |  Schweitzer Engineering Laboratories SELselinc.comHQ: Pullman, KY, United StatesReported employees: 5,001-10,000 | Pullman, KY, United States | 5,001-10,000 | Exact match | 6,934 contacts → |
“SEL is a globally recognized designer and manufacturer of products and solutions that make electric power safer, more reliable, and more economical.” Recorded description excerpt · November 2, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  Powellpowellind.comHQ: Houston, IL, United StatesReported employees: 1,001-5,000 | Houston, IL, United States | 1,001-5,000 | Exact match | 2,666 contacts → |
“Powell is hiring- Powell is dedicated to improving people’s lives by providing reliable power distribution systems in every market we serve.” Recorded description excerpt · November 2, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Electrical Components Internationalecintl.com HQ: Southfield, MI, United StatesReported employees: 10001+ | Southfield, MI, United States | 10001+ | Exact match | 2,316 contacts → |
“Founded in 1953, Electrical Components International (ECI) is one of the world’s leading suppliers of electrical distribution systems, control box assemblies, and other critical…” Recorded description excerpt · November 2, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | HQ: Warrendale, FL, United StatesReported employees: 1,001-5,000 | Warrendale, FL, United States | 1,001-5,000 | Exact match | 1,037 contacts → |
“Mitsubishi Electric Power Products, Inc.(MEPPI) is a leading U.S.” Recorded description excerpt · November 2, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | 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. | |||||
| 6 |  Systems Controlsystemscontrol.comHQ: Iron Mountain, MI, United StatesReported employees: 501-1,000 | Iron Mountain, MI, United States | 501-1,000 | Exact match | 245 contacts → |
“Systems Control, a Hubbell brand, designs and manufactures turnkey control systems and control relays that are involved in the protection and control of transmission and…” Recorded description excerpt · November 2, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | 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. | |||||
| 8 | RFL A Hubbell Power Systems, Inc. Brand USArflelect.com HQ: Boonton, NJ, United StatesReported employees: 51-200 | Boonton, NJ, United States | 51-200 | Exact match | 199 contacts → |
“RFL is a Hubbell Power Systems brand that provides power line communication equipment and protection solutions, relaying products, application support, and customized systems.” Recorded description excerpt · November 2, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Pennsylvania Transformer Technology LLC PTTpatransformer.com HQ: Canonsburg, NC, United StatesReported employees: 201-500 | Canonsburg, NC, United States | 201-500 | Exact match | 192 contacts → |
“Pennsylvania Transformer Technology LLC (PTT) is a US-owned, industry leading manufacturer of a wide range of sizes and types of power transformers for the investor-owned…” Recorded description excerpt · November 2, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | 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. | |||||
| 11 | 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. | |||||
| 12 | Southwest Electric COswelectric.com HQ: Oklahoma City, TN, United StatesReported employees: 201-500 | Oklahoma City, TN, United States | 201-500 | Exact match | 158 contacts → |
“In 2025, Southwest Electric Co.” Recorded description excerpt · November 2, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | JST Power Equipmentjstpower.com HQ: Lake Mary, FL, United StatesReported employees: 201-500 | Lake Mary, FL, United States | 201-500 | Exact match | 154 contacts → |
“At JST Power Equipment, we pride ourselves on delivering world-class transformer and electrical equipment solutions.” Recorded description excerpt · November 2, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | MGM Transformersmgmtransformer.com HQ: Vernon, CA, United StatesReported employees: 201-500 | Vernon, CA, United States | 201-500 | Exact match | 131 contacts → |
“MGM Transformers is now part of Forgent Power Solutions.” Recorded description excerpt · November 2, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Malloy Electricmalloyelectric.com HQ: Sioux Falls, ND, United StatesReported employees: 201-500 | Sioux Falls, ND, United States | 201-500 | Exact match | 128 contacts → |
“Malloy has established itself as a cornerstone in the electrical and power transmission industry through its consistent growth, adaptability, and commitment to quality and…” Recorded description excerpt · November 2, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Baslerbasler.com HQ: Highland, IL, United StatesReported employees: 501-1,000 | Highland, IL, United States | 501-1,000 | Exact match | 116 contacts → |
“In 2025, Basler Electric Company was acquired by Littelfuse, Inc, a global, diversified industrial technology manufacturing company dedicated to creating a sustainable, connected…” Recorded description excerpt · November 2, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | E-T-A Engineering Technologye-t-a.com HQ: Mt. Prospect, IL, United StatesReported employees: 51-200 | Mt. Prospect, IL, United States | 51-200 | Exact match | 112 contacts → |
“E-T-A Engineering Technology is the world’s leading manufacturer of circuit breakers for equipment and is the only resource for all circuit protection technologies: thermal…” Recorded description excerpt · November 2, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Fortune Electricfortune.com.tw HQ: Torrance, PA, United StatesReported employees: 1,001-5,000 | Torrance, PA, United States | 1,001-5,000 | Exact match | 97 contacts → |
“Welcome to Fortune Electric, a world class power transformer and switchgear manufacturer since 1969.” Recorded description excerpt · November 2, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Vantran Transformersvantran.com HQ: Waco, TX, United StatesReported employees: 51-200 | Waco, TX, United States | 51-200 | Exact match | 87 contacts → |
“VanTran Transformers is now part of Forgent Power Solutions.” Recorded description excerpt · November 2, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  Lindsey Systemslindsey-usa.comHQ: Azusa, CA, United StatesReported employees: 201-500 | Azusa, CA, United States | 201-500 | Exact match | 67 contacts → |
“Lindsey Systems is recognized globally as an innovator in the electric power industry.” Recorded description excerpt · November 2, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Synchrogridsynchrogrid.com HQ: Bryan, CO, United StatesReported employees: 51-200 | Bryan, CO, United States | 51-200 | Exact match | 58 contacts → |
“SynchroGrid is a Texas-based engineering firm specializing in protective relaying, substation design, and NERC compliance.” Recorded description excerpt · November 2, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Telex LLCtelexllc.com HQ: Fayetteville, AR, United StatesReported employees: 51-200 | Fayetteville, AR, United States | 51-200 | Exact match | 56 contacts → |
“Welcome to Telex.” Recorded description excerpt · November 2, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Olsun Electrics Corporationolsun.com HQ: Richmond, IL, United StatesReported employees: 51-200 | Richmond, IL, United States | 51-200 | Exact match | 53 contacts → |
“75 Years of Engineering Excellence in the Delivered Worldwide Olsun Electrics is the industry’s most trusted partner for custom dry-type transformers.” Recorded description excerpt · November 2, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Southland Electrical Supply, An IPS Companysouthlandelectrical.com HQ: Burlington, NC, United StatesReported employees: 51-200 | Burlington, NC, United States | 51-200 | Exact match | 51 contacts → |
“Southland Electrical Supply, An IPS Company, is a world class leader in Power Distribution and Low Voltage Motor Control.” Recorded description excerpt · November 2, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Trantechtrantechcorp.com HQ: Edgefield, SC, United StatesReported employees: 201-500 | Edgefield, SC, United States | 201-500 | Exact match | 49 contacts → |
“Trantech is the most customer-oriented and largest manufacturer of transformer radiators and cooling products in North America.” Recorded description excerpt · November 2, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 305 company matches
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Transformer relays 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
305 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 305 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 relays 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 relays suppliers did RevenueBase find based in the United States?
The saved snapshot records 305 matching company records, 22,494 tracked contacts and 7,053 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 relays suppliers by geography
- Transformer relays suppliers based in Vadodara, India
- Transformer relays suppliers based in Brazil
- Transformer relays suppliers based in Canada
- Transformer relays suppliers based in France
- Transformer relays suppliers based in Germany
- Transformer relays suppliers based in India
- Transformer relays suppliers based in Italy
- Transformer relays suppliers based in South Africa
- Transformer relays suppliers based in Spain
- Transformer relays suppliers based in Türkiye
- Transformer relays suppliers based in the United Kingdom
Cite this list
RevenueBase Data Team. Top 25 transformer relays suppliers based in the United States. Snapshot: November 2, 2026. https://revenuebase.ai/companies/transformer-relays-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 relays suppliers based in Vadodara, India
- Transformer relays suppliers based in Brazil
- Transformer relays suppliers based in Canada
- Transformer relays suppliers based in France
- Transformer relays suppliers based in Germany
- Transformer relays suppliers based in India
Company intelligence · public preview
Top 25 transformer relays suppliers based in the United States
RevenueBase records 305 matching company records for transformer relays suppliers based in the United States, with 22,494 tracked contacts and 7,053 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 relays 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 | Schweitzer Engineering Laboratories SELselinc.com HQ: Pullman, KY, United StatesReported employees: 5,001-10,000 | Pullman, KY, United States | 5,001-10,000 | Exact match | 6,934 contacts → |
“SEL is a globally recognized designer and manufacturer of products and solutions that make electric power safer, more reliable, and more economical.” Recorded description excerpt · November 2, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Powellpowellind.com HQ: Houston, IL, United StatesReported employees: 1,001-5,000 | Houston, IL, United States | 1,001-5,000 | Exact match | 2,666 contacts → |
“Powell is hiring- Powell is dedicated to improving people’s lives by providing reliable power distribution systems in every market we serve.” Recorded description excerpt · November 2, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Electrical Components Internationalecintl.com HQ: Southfield, MI, United StatesReported employees: 10001+ | Southfield, MI, United States | 10001+ | Exact match | 2,316 contacts → |
“Founded in 1953, Electrical Components International (ECI) is one of the world’s leading suppliers of electrical distribution systems, control box assemblies, and other critical…” Recorded description excerpt · November 2, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | HQ: Warrendale, FL, United StatesReported employees: 1,001-5,000 | Warrendale, FL, United States | 1,001-5,000 | Exact match | 1,037 contacts → |
“Mitsubishi Electric Power Products, Inc.(MEPPI) is a leading U.S.” Recorded description excerpt · November 2, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | 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. | |||||
| 6 | Systems Controlsystemscontrol.com HQ: Iron Mountain, MI, United StatesReported employees: 501-1,000 | Iron Mountain, MI, United States | 501-1,000 | Exact match | 245 contacts → |
“Systems Control, a Hubbell brand, designs and manufactures turnkey control systems and control relays that are involved in the protection and control of transmission and…” Recorded description excerpt · November 2, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | 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. | |||||
| 8 | RFL A Hubbell Power Systems, Inc. Brand USArflelect.com HQ: Boonton, NJ, United StatesReported employees: 51-200 | Boonton, NJ, United States | 51-200 | Exact match | 199 contacts → |
“RFL is a Hubbell Power Systems brand that provides power line communication equipment and protection solutions, relaying products, application support, and customized systems.” Recorded description excerpt · November 2, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Pennsylvania Transformer Technology LLC PTTpatransformer.com HQ: Canonsburg, NC, United StatesReported employees: 201-500 | Canonsburg, NC, United States | 201-500 | Exact match | 192 contacts → |
“Pennsylvania Transformer Technology LLC (PTT) is a US-owned, industry leading manufacturer of a wide range of sizes and types of power transformers for the investor-owned…” Recorded description excerpt · November 2, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | 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. | |||||
| 11 | 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. | |||||
| 12 | Southwest Electric COswelectric.com HQ: Oklahoma City, TN, United StatesReported employees: 201-500 | Oklahoma City, TN, United States | 201-500 | Exact match | 158 contacts → |
“In 2025, Southwest Electric Co.” Recorded description excerpt · November 2, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | JST Power Equipmentjstpower.com HQ: Lake Mary, FL, United StatesReported employees: 201-500 | Lake Mary, FL, United States | 201-500 | Exact match | 154 contacts → |
“At JST Power Equipment, we pride ourselves on delivering world-class transformer and electrical equipment solutions.” Recorded description excerpt · November 2, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | MGM Transformersmgmtransformer.com HQ: Vernon, CA, United StatesReported employees: 201-500 | Vernon, CA, United States | 201-500 | Exact match | 131 contacts → |
“MGM Transformers is now part of Forgent Power Solutions.” Recorded description excerpt · November 2, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Malloy Electricmalloyelectric.com HQ: Sioux Falls, ND, United StatesReported employees: 201-500 | Sioux Falls, ND, United States | 201-500 | Exact match | 128 contacts → |
“Malloy has established itself as a cornerstone in the electrical and power transmission industry through its consistent growth, adaptability, and commitment to quality and…” Recorded description excerpt · November 2, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Baslerbasler.com HQ: Highland, IL, United StatesReported employees: 501-1,000 | Highland, IL, United States | 501-1,000 | Exact match | 116 contacts → |
“In 2025, Basler Electric Company was acquired by Littelfuse, Inc, a global, diversified industrial technology manufacturing company dedicated to creating a sustainable, connected…” Recorded description excerpt · November 2, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | E-T-A Engineering Technologye-t-a.com HQ: Mt. Prospect, IL, United StatesReported employees: 51-200 | Mt. Prospect, IL, United States | 51-200 | Exact match | 112 contacts → |
“E-T-A Engineering Technology is the world’s leading manufacturer of circuit breakers for equipment and is the only resource for all circuit protection technologies: thermal…” Recorded description excerpt · November 2, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Fortune Electricfortune.com.tw HQ: Torrance, PA, United StatesReported employees: 1,001-5,000 | Torrance, PA, United States | 1,001-5,000 | Exact match | 97 contacts → |
“Welcome to Fortune Electric, a world class power transformer and switchgear manufacturer since 1969.” Recorded description excerpt · November 2, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Vantran Transformersvantran.com HQ: Waco, TX, United StatesReported employees: 51-200 | Waco, TX, United States | 51-200 | Exact match | 87 contacts → |
“VanTran Transformers is now part of Forgent Power Solutions.” Recorded description excerpt · November 2, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Lindsey Systemslindsey-usa.com HQ: Azusa, CA, United StatesReported employees: 201-500 | Azusa, CA, United States | 201-500 | Exact match | 67 contacts → |
“Lindsey Systems is recognized globally as an innovator in the electric power industry.” Recorded description excerpt · November 2, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Synchrogridsynchrogrid.com HQ: Bryan, CO, United StatesReported employees: 51-200 | Bryan, CO, United States | 51-200 | Exact match | 58 contacts → |
“SynchroGrid is a Texas-based engineering firm specializing in protective relaying, substation design, and NERC compliance.” Recorded description excerpt · November 2, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Telex LLCtelexllc.com HQ: Fayetteville, AR, United StatesReported employees: 51-200 | Fayetteville, AR, United States | 51-200 | Exact match | 56 contacts → |
“Welcome to Telex.” Recorded description excerpt · November 2, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Olsun Electrics Corporationolsun.com HQ: Richmond, IL, United StatesReported employees: 51-200 | Richmond, IL, United States | 51-200 | Exact match | 53 contacts → |
“75 Years of Engineering Excellence in the Delivered Worldwide Olsun Electrics is the industry’s most trusted partner for custom dry-type transformers.” Recorded description excerpt · November 2, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Southland Electrical Supply, An IPS Companysouthlandelectrical.com HQ: Burlington, NC, United StatesReported employees: 51-200 | Burlington, NC, United States | 51-200 | Exact match | 51 contacts → |
“Southland Electrical Supply, An IPS Company, is a world class leader in Power Distribution and Low Voltage Motor Control.” Recorded description excerpt · November 2, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Trantechtrantechcorp.com HQ: Edgefield, SC, United StatesReported employees: 201-500 | Edgefield, SC, United States | 201-500 | Exact match | 49 contacts → |
“Trantech is the most customer-oriented and largest manufacturer of transformer radiators and cooling products in North America.” Recorded description excerpt · November 2, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 305 company matches
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Transformer relays 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
305 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 305 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 relays 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 relays suppliers did RevenueBase find based in the United States?
The saved snapshot records 305 matching company records, 22,494 tracked contacts and 7,053 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 relays suppliers by geography
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- Transformer relays suppliers based in Germany
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- Transformer relays suppliers based in Italy
- Transformer relays suppliers based in South Africa
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- Transformer relays suppliers based in Türkiye
- Transformer relays suppliers based in the United Kingdom
Cite this list
RevenueBase Data Team. Top 25 transformer relays suppliers based in the United States. Snapshot: November 2, 2026. https://revenuebase.ai/companies/transformer-relays-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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