Company lists · Data refreshed October 2026
Top 25 Convert manufacturers based in the United States
RevenueBase identified 90 company matches for convert manufacturers associated with the United States as of October 2026 and tracks 3,894 professional contacts across them, including 1,178 with verified work emails. Menomonee Falls is the largest hub.
This list covers company matches for convert manufacturers associated with the United States, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed October 10, 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 convert manufacturers based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 544 contacts → | ||||
Exact match “TDK-Lambda Corporation, a group company of TDK Corporation, is a recognized leader and global supplier of power conversion products for industrial and medical equipment worldwide.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase | |||||
| 2 | 306 contacts → | ||||
Exact match “Maddox serves the commercial, industrial, utility, and renewables segments of the transformer market.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase | |||||
| 3 | 270 contacts → | ||||
Exact match “SL Power Electronics is a global leader in the design, manufacturing and marketing of differentiated internal and external AC/DC and DC/DC power conversion solutions for highly…” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase | |||||
| 4 | 264 contacts → | ||||
Exact match “Since 2010, EPC Power is a power solutions platform that designs, engineers and manufactures advanced power conversion solutions in the USA for data center, energy storage and…” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase | |||||
| 5 | 261 contacts → | ||||
Exact match “A leader in power conversion technology, OmniOn partners with customers to deliver reliable solutions that power their businesses both today and well into the future.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase | |||||
| 6 | 213 contacts → | ||||
Exact match “SynQor is a leading supplier of power conversion solutions to the military, avionics, transportation, medical, industrial, telecommunications and computing markets.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase | |||||
| 7 | 190 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 · Oct 10, 2026 · View company records in RevenueBase | |||||
| 8 | 187 contacts → | ||||
Exact match “Since 1963, Dynapower has provided power electronics solutions, along with an array of aftermarket services focused on continuous reliability and efficiency to an ever-expanding…” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase | |||||
| 9 | 180 contacts → | ||||
Exact match “NWL Inc.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase | |||||
| 10 | 109 contacts → | ||||
Exact match “As a pioneering designer, producer and supplier of advanced power conversion equipment, Avionic Instruments has helped power flight for more than 40 years.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase | |||||
| 11 | 100 contacts → | ||||
Exact match “RoMan Manufacturing was founded in 1980 in Grand Rapids, Michigan, and specializes in small, lightweight Water-Cooled AC Transformers, DC Power Supplies, MFDC (Medium-Frequency)…” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase | |||||
| 12 | 98 contacts → | ||||
Exact match “Fast power conversion solutions.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase | |||||
| 13 | 42 contacts → | ||||
Exact match “Founded in 1973, Neeltran is uniquely positioned as one of the few companies in the world that designs and manufactures its own rectifier-transformers and rectifiers in the same…” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase | |||||
| 14 | 39 contacts → | ||||
Exact match “Currently in our 36th year of business, the FCX Systems brand continues to be synonymous with quality & satisfaction in the solid state power conversion industry.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase | |||||
| 15 | 33 contacts → | ||||
Exact match “AmePower is a global leader specializing in Design, Retrofitting, Modernization and Manufacturing of customized High Power Energy Converters.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase | |||||
| 16 | 32 contacts → | ||||
Exact match “NetPower is a technology leader of open-frame and encapsulated high efficiency and high density DC-DC and AC-DC power converters.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase | |||||
| 17 | 32 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 · Oct 10, 2026 · View company records in RevenueBase | |||||
| 18 | 30 contacts → | ||||
Exact match “Powering Possibilities with Power Converters, Lithium Battery Systems, Transfer Switches and Inverters.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase | |||||
| 19 | 30 contacts → | ||||
Exact match “Quality Transformer and Electronics designs and manufactures custom transformers, inductors, reactors and electrictronic assemblies.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase | |||||
| 20 | 28 contacts → | ||||
Exact match “Warner Power is now part of Grand Power Systems!” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase | |||||
| 21 | 28 contacts → | ||||
Exact match “Calex Manufacturing Co, Inc, a subsidiary of Murata Power Solutions, Inc.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase | |||||
| 22 | 19 contacts → | ||||
Exact match “In business since 1952, Ronk Electrical Industries is a market leader in manufacturing phase converter units, both static and rotary, as well as power factor correction capacitors…” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase | |||||
| 23 | 17 contacts → | ||||
Exact match “Oztek, now part of Trystar, was founded in 1997 is a U.S.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase | |||||
| 24 | 17 contacts → | ||||
Exact match “At D Volt Co, we help accelerate the infrastructure behind AI and next-generation data centers.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase | |||||
| 25 | 15 contacts → | ||||
Exact match “Norlake Manufacturing Company | Engineered transformers and custom transformer solutions for over 50 years.” Recorded in the RevenueBase company graph · Oct 10, 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 “convert manufacturers”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.
Showing 25 of 90 convert manufacturers based in the United States
See the full list, filter by size, metro and specialty, and access 1,178 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Convert manufacturers based in the United States at a glance
As of Oct 10, 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 90 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 “convert manufacturers” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
- RevenueBase SmartSearch
- Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
- Public preview
- The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
- Match quality
- RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
- Ranking
- Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
- Verification
- Every displayed company carries at least one verified work email. RevenueBase tracks 1,178 professional contacts with verified work emails across the full matched dataset. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
- Refresh
- This page's figures were pulled from the company graph on October 10, 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 “convert manufacturers”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many convert manufacturers are there based in the United States?
RevenueBase identified 90 company matches for convert manufacturers associated with the United States as of October 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.
What is the largest company on this list?
Tdk-Lambda Americas tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city has the most convert manufacturers?
Menomonee Falls leads with 3 company records, followed by Grand Haven (2) and Hillsborough (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 1,178 professional contacts with verified work emails tracked across these 90 companies; direct dials are available where recorded.
How current is this list?
The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on October 10, 2026.
Ready to reach these companies? Verified emails and direct dials for all 90 convert manufacturers based in the United States. Start with a free account, no credit card.
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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
- Convert manufacturers based in India
- Convert manufacturers based in Italy
- AI companies based in the United States
- Cybersecurity companies based in the United States
- Manufacturing companies based in the United States
- Media companies based in the United States
Company intelligence · public preview
Top 25 convert manufacturers based in the United States
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 90 matching company records for convert manufacturers based in the United States, with 3,894 tracked contacts and 1,178 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: October 10, 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 convert manufacturers based in the United States
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 |  Tdk-Lambda Americaslambda.tdk.comHQ: Neptune, NJ, United StatesReported employees: 201-500 | Neptune, NJ, United States | 201-500 | Exact match | 544 contacts → |
“TDK-Lambda Corporation, a group company of TDK Corporation, is a recognized leader and global supplier of power conversion products for industrial and medical equipment worldwide.” Recorded description excerpt · October 10, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Maddox Industrial Transformermaddox.com HQ: Greer, SC, United StatesReported employees: 201-500 | Greer, SC, United States | 201-500 | Exact match | 306 contacts → |
“Maddox serves the commercial, industrial, utility, and renewables segments of the transformer market.” Recorded description excerpt · October 10, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  SL Power Electronicsslpower.comHQ: Ventura, CA, United StatesReported employees: 501-1,000 | Ventura, CA, United States | 501-1,000 | Exact match | 270 contacts → |
“SL Power Electronics is a global leader in the design, manufacturing and marketing of differentiated internal and external AC/DC and DC/DC power conversion solutions for highly…” Recorded description excerpt · October 10, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  EPC Power Corpepcpower.comHQ: Poway, CA, United StatesReported employees: 201-500 | Poway, CA, United States | 201-500 | Exact match | 264 contacts → |
“Since 2010, EPC Power is a power solutions platform that designs, engineers and manufactures advanced power conversion solutions in the USA for data center, energy storage and…” Recorded description excerpt · October 10, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  Omnion Poweromnionpower.comHQ: Plano, TX, United StatesReported employees: 1,001-5,000 | Plano, TX, United States | 1,001-5,000 | Exact match | 261 contacts → |
“A leader in power conversion technology, OmniOn partners with customers to deliver reliable solutions that power their businesses both today and well into the future.” Recorded description excerpt · October 10, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Synqorsynqor.comHQ: Salem, NH, United StatesReported employees: 201-500 | Salem, NH, United States | 201-500 | Exact match | 213 contacts → |
“SynQor is a leading supplier of power conversion solutions to the military, avionics, transportation, medical, industrial, telecommunications and computing markets.” Recorded description excerpt · October 10, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Pennsylvania Transformer Technology LLC PTTpatransformer.com HQ: Canonsburg, PA, United StatesReported employees: 201-500 | Canonsburg, PA, United States | 201-500 | Exact match | 190 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 · October 10, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  Dynapower, Part Of Sensata Technologiesdynapower.comHQ: South Burlington, VT, United StatesReported employees: 51-200 | South Burlington, VT, United States | 51-200 | Exact match | 187 contacts → |
“Since 1963, Dynapower has provided power electronics solutions, along with an array of aftermarket services focused on continuous reliability and efficiency to an ever-expanding…” Recorded description excerpt · October 10, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | NWLnwl.com HQ: Bordentown, NJ, United StatesReported employees: 201-500 | Bordentown, NJ, United States | 201-500 | Exact match | 180 contacts → |
“NWL Inc.” Recorded description excerpt · October 10, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  Avionic Instrumentsavionicinstruments.comHQ: Avenel, NJ, United StatesReported employees: 201-500 | Avenel, NJ, United States | 201-500 | Exact match | 109 contacts → |
“As a pioneering designer, producer and supplier of advanced power conversion equipment, Avionic Instruments has helped power flight for more than 40 years.” Recorded description excerpt · October 10, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Roman Manufacturingromanmfg.com HQ: Grand Rapids, MI, United StatesReported employees: 201-500 | Grand Rapids, MI, United States | 201-500 | Exact match | 100 contacts → |
“RoMan Manufacturing was founded in 1980 in Grand Rapids, Michigan, and specializes in small, lightweight Water-Cooled AC Transformers, DC Power Supplies, MFDC (Medium-Frequency)…” Recorded description excerpt · October 10, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Dykman INCdykman.com HQ: Boise, ID, United StatesReported employees: 51-200 | Boise, ID, United States | 51-200 | Exact match | 98 contacts → |
“Fast power conversion solutions.” Recorded description excerpt · October 10, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Neeltran INCneeltran.com HQ: New Milford, CT, United StatesReported employees: 51-200 | New Milford, CT, United States | 51-200 | Exact match | 42 contacts → |
“Founded in 1973, Neeltran is uniquely positioned as one of the few companies in the world that designs and manufactures its own rectifier-transformers and rectifiers in the same…” Recorded description excerpt · October 10, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | HQ: Morgantown, WV, United StatesReported employees: 51-200 | Morgantown, WV, United States | 51-200 | Exact match | 39 contacts → |
“Currently in our 36th year of business, the FCX Systems brand continues to be synonymous with quality & satisfaction in the solid state power conversion industry.” Recorded description excerpt · October 10, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  Amepoweramepower.comHQ: Miami, FL, United StatesReported employees: 51-200 | Miami, FL, United States | 51-200 | Exact match | 33 contacts → |
“AmePower is a global leader specializing in Design, Retrofitting, Modernization and Manufacturing of customized High Power Energy Converters.” Recorded description excerpt · October 10, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Netpowernetpowercorp.com HQ: Plano, TX, United StatesReported employees: 201-500 | Plano, TX, United States | 201-500 | Exact match | 32 contacts → |
“NetPower is a technology leader of open-frame and encapsulated high efficiency and high density DC-DC and AC-DC power converters.” Recorded description excerpt · October 10, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Sunbelt Transformersunbeltusa.com HQ: Temple, TX, United StatesReported employees: 51-200 | Temple, TX, United States | 51-200 | Exact match | 32 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 · October 10, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Progressive Dynamics INCprogressivedyn.com HQ: Marshall, MI, United StatesReported employees: 51-200 | Marshall, MI, United States | 51-200 | Exact match | 30 contacts → |
“Powering Possibilities with Power Converters, Lithium Battery Systems, Transfer Switches and Inverters.” Recorded description excerpt · October 10, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | HQ: Milpitas, CA, United StatesReported employees: 51-200 | Milpitas, CA, United States | 51-200 | Exact match | 30 contacts → |
“Quality Transformer and Electronics designs and manufactures custom transformers, inductors, reactors and electrictronic assemblies.” Recorded description excerpt · October 10, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Warner Powergrandpowersystems.com HQ: Grand Haven, MI, United StatesReported employees: 51-200 | Grand Haven, MI, United States | 51-200 | Exact match | 28 contacts → |
“Warner Power is now part of Grand Power Systems!” Recorded description excerpt · October 10, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Calex Manufacturing Co, INCcalex.com HQ: Concord, MA, United StatesReported employees: 51-200 | Concord, MA, United States | 51-200 | Exact match | 28 contacts → |
“Calex Manufacturing Co, Inc, a subsidiary of Murata Power Solutions, Inc.” Recorded description excerpt · October 10, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Ronk Electrical Industriesronkelectrical.com HQ: Nokomis, IL, United StatesReported employees: 11-50 | Nokomis, IL, United States | 11-50 | Exact match | 19 contacts → |
“In business since 1952, Ronk Electrical Industries is a market leader in manufacturing phase converter units, both static and rotary, as well as power factor correction capacitors…” Recorded description excerpt · October 10, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Oztek Trystaroztekcorp.com HQ: Merrimack, NH, United StatesReported employees: 11-50 | Merrimack, NH, United States | 11-50 | Exact match | 17 contacts → |
“Oztek, now part of Trystar, was founded in 1997 is a U.S.” Recorded description excerpt · October 10, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | D Volt COd-volt.co HQ: Houston, TX, United StatesReported employees: 11-50 | Houston, TX, United States | 11-50 | Exact match | 17 contacts → |
“At D Volt Co, we help accelerate the infrastructure behind AI and next-generation data centers.” Recorded description excerpt · October 10, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Norlake Manufacturingnorlakemfg.com HQ: North Ridgeville, OH, United StatesReported employees: 11-50 | North Ridgeville, OH, United States | 11-50 | Exact match | 15 contacts → |
“Norlake Manufacturing Company | Engineered transformers and custom transformer solutions for over 50 years.” Recorded description excerpt · October 10, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 90 company matches
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Convert manufacturers: dataset insights
October 10, 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
90 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 90 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: October 10, 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 convert manufacturers?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many convert manufacturers did RevenueBase find based in the United States?
The saved snapshot records 90 matching company records, 3,894 tracked contacts and 1,178 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: October 10, 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
Convert manufacturers by geography
Browse the directory
Cite this list
RevenueBase Data Team. Top 25 convert manufacturers based in the United States. Snapshot: October 10, 2026. https://revenuebase.ai/companies/convert-manufacturers/united-states.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Convert manufacturers based in India
- Convert manufacturers based in Italy
- AI companies based in the United States
- Cybersecurity companies based in the United States
- Manufacturing companies based in the United States
- Media companies based in the United States
Company intelligence · public preview
Top 25 convert manufacturers based in the United States
RevenueBase records 90 matching company records for convert manufacturers based in the United States, with 3,894 tracked contacts and 1,178 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: October 10, 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 convert manufacturers based in the United States
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 | Tdk-Lambda Americaslambda.tdk.com HQ: Neptune, NJ, United StatesReported employees: 201-500 | Neptune, NJ, United States | 201-500 | Exact match | 544 contacts → |
“TDK-Lambda Corporation, a group company of TDK Corporation, is a recognized leader and global supplier of power conversion products for industrial and medical equipment worldwide.” Recorded description excerpt · October 10, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Maddox Industrial Transformermaddox.com HQ: Greer, SC, United StatesReported employees: 201-500 | Greer, SC, United States | 201-500 | Exact match | 306 contacts → |
“Maddox serves the commercial, industrial, utility, and renewables segments of the transformer market.” Recorded description excerpt · October 10, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | SL Power Electronicsslpower.com HQ: Ventura, CA, United StatesReported employees: 501-1,000 | Ventura, CA, United States | 501-1,000 | Exact match | 270 contacts → |
“SL Power Electronics is a global leader in the design, manufacturing and marketing of differentiated internal and external AC/DC and DC/DC power conversion solutions for highly…” Recorded description excerpt · October 10, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | EPC Power Corpepcpower.com HQ: Poway, CA, United StatesReported employees: 201-500 | Poway, CA, United States | 201-500 | Exact match | 264 contacts → |
“Since 2010, EPC Power is a power solutions platform that designs, engineers and manufactures advanced power conversion solutions in the USA for data center, energy storage and…” Recorded description excerpt · October 10, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Omnion Poweromnionpower.com HQ: Plano, TX, United StatesReported employees: 1,001-5,000 | Plano, TX, United States | 1,001-5,000 | Exact match | 261 contacts → |
“A leader in power conversion technology, OmniOn partners with customers to deliver reliable solutions that power their businesses both today and well into the future.” Recorded description excerpt · October 10, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Synqorsynqor.com HQ: Salem, NH, United StatesReported employees: 201-500 | Salem, NH, United States | 201-500 | Exact match | 213 contacts → |
“SynQor is a leading supplier of power conversion solutions to the military, avionics, transportation, medical, industrial, telecommunications and computing markets.” Recorded description excerpt · October 10, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Pennsylvania Transformer Technology LLC PTTpatransformer.com HQ: Canonsburg, PA, United StatesReported employees: 201-500 | Canonsburg, PA, United States | 201-500 | Exact match | 190 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 · October 10, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Dynapower, Part Of Sensata Technologiesdynapower.com HQ: South Burlington, VT, United StatesReported employees: 51-200 | South Burlington, VT, United States | 51-200 | Exact match | 187 contacts → |
“Since 1963, Dynapower has provided power electronics solutions, along with an array of aftermarket services focused on continuous reliability and efficiency to an ever-expanding…” Recorded description excerpt · October 10, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | NWLnwl.com HQ: Bordentown, NJ, United StatesReported employees: 201-500 | Bordentown, NJ, United States | 201-500 | Exact match | 180 contacts → |
“NWL Inc.” Recorded description excerpt · October 10, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Avionic Instrumentsavionicinstruments.com HQ: Avenel, NJ, United StatesReported employees: 201-500 | Avenel, NJ, United States | 201-500 | Exact match | 109 contacts → |
“As a pioneering designer, producer and supplier of advanced power conversion equipment, Avionic Instruments has helped power flight for more than 40 years.” Recorded description excerpt · October 10, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Roman Manufacturingromanmfg.com HQ: Grand Rapids, MI, United StatesReported employees: 201-500 | Grand Rapids, MI, United States | 201-500 | Exact match | 100 contacts → |
“RoMan Manufacturing was founded in 1980 in Grand Rapids, Michigan, and specializes in small, lightweight Water-Cooled AC Transformers, DC Power Supplies, MFDC (Medium-Frequency)…” Recorded description excerpt · October 10, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Dykman INCdykman.com HQ: Boise, ID, United StatesReported employees: 51-200 | Boise, ID, United States | 51-200 | Exact match | 98 contacts → |
“Fast power conversion solutions.” Recorded description excerpt · October 10, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Neeltran INCneeltran.com HQ: New Milford, CT, United StatesReported employees: 51-200 | New Milford, CT, United States | 51-200 | Exact match | 42 contacts → |
“Founded in 1973, Neeltran is uniquely positioned as one of the few companies in the world that designs and manufactures its own rectifier-transformers and rectifiers in the same…” Recorded description excerpt · October 10, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | HQ: Morgantown, WV, United StatesReported employees: 51-200 | Morgantown, WV, United States | 51-200 | Exact match | 39 contacts → |
“Currently in our 36th year of business, the FCX Systems brand continues to be synonymous with quality & satisfaction in the solid state power conversion industry.” Recorded description excerpt · October 10, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Amepoweramepower.com HQ: Miami, FL, United StatesReported employees: 51-200 | Miami, FL, United States | 51-200 | Exact match | 33 contacts → |
“AmePower is a global leader specializing in Design, Retrofitting, Modernization and Manufacturing of customized High Power Energy Converters.” Recorded description excerpt · October 10, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Netpowernetpowercorp.com HQ: Plano, TX, United StatesReported employees: 201-500 | Plano, TX, United States | 201-500 | Exact match | 32 contacts → |
“NetPower is a technology leader of open-frame and encapsulated high efficiency and high density DC-DC and AC-DC power converters.” Recorded description excerpt · October 10, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Sunbelt Transformersunbeltusa.com HQ: Temple, TX, United StatesReported employees: 51-200 | Temple, TX, United States | 51-200 | Exact match | 32 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 · October 10, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Progressive Dynamics INCprogressivedyn.com HQ: Marshall, MI, United StatesReported employees: 51-200 | Marshall, MI, United States | 51-200 | Exact match | 30 contacts → |
“Powering Possibilities with Power Converters, Lithium Battery Systems, Transfer Switches and Inverters.” Recorded description excerpt · October 10, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | HQ: Milpitas, CA, United StatesReported employees: 51-200 | Milpitas, CA, United States | 51-200 | Exact match | 30 contacts → |
“Quality Transformer and Electronics designs and manufactures custom transformers, inductors, reactors and electrictronic assemblies.” Recorded description excerpt · October 10, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Warner Powergrandpowersystems.com HQ: Grand Haven, MI, United StatesReported employees: 51-200 | Grand Haven, MI, United States | 51-200 | Exact match | 28 contacts → |
“Warner Power is now part of Grand Power Systems!” Recorded description excerpt · October 10, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Calex Manufacturing Co, INCcalex.com HQ: Concord, MA, United StatesReported employees: 51-200 | Concord, MA, United States | 51-200 | Exact match | 28 contacts → |
“Calex Manufacturing Co, Inc, a subsidiary of Murata Power Solutions, Inc.” Recorded description excerpt · October 10, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Ronk Electrical Industriesronkelectrical.com HQ: Nokomis, IL, United StatesReported employees: 11-50 | Nokomis, IL, United States | 11-50 | Exact match | 19 contacts → |
“In business since 1952, Ronk Electrical Industries is a market leader in manufacturing phase converter units, both static and rotary, as well as power factor correction capacitors…” Recorded description excerpt · October 10, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Oztek Trystaroztekcorp.com HQ: Merrimack, NH, United StatesReported employees: 11-50 | Merrimack, NH, United States | 11-50 | Exact match | 17 contacts → |
“Oztek, now part of Trystar, was founded in 1997 is a U.S.” Recorded description excerpt · October 10, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | D Volt COd-volt.co HQ: Houston, TX, United StatesReported employees: 11-50 | Houston, TX, United States | 11-50 | Exact match | 17 contacts → |
“At D Volt Co, we help accelerate the infrastructure behind AI and next-generation data centers.” Recorded description excerpt · October 10, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Norlake Manufacturingnorlakemfg.com HQ: North Ridgeville, OH, United StatesReported employees: 11-50 | North Ridgeville, OH, United States | 11-50 | Exact match | 15 contacts → |
“Norlake Manufacturing Company | Engineered transformers and custom transformer solutions for over 50 years.” Recorded description excerpt · October 10, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 90 company matches
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Convert manufacturers: dataset insights
October 10, 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
90 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 90 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: October 10, 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 convert manufacturers?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many convert manufacturers did RevenueBase find based in the United States?
The saved snapshot records 90 matching company records, 3,894 tracked contacts and 1,178 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: October 10, 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.
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Cite this list
RevenueBase Data Team. Top 25 convert manufacturers based in the United States. Snapshot: October 10, 2026. https://revenuebase.ai/companies/convert-manufacturers/united-states.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
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