Company lists · Data refreshed September 2026
Top 25 Encapsulated coil manufacturers based in the United States
RevenueBase identified 152 encapsulated coil manufacturers headquartered in the United States as of September 2026 and tracks 2,518 professional contacts across them, including 829 with verified work emails. Anaheim is the largest hub.
This list covers encapsulated coil manufacturers headquartered in the United States, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 30, 2026.
Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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 encapsulated coil manufacturers based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 397 contacts → | ||||
Strong evidence “Our privately held company was founded in 1945 as a custom coil maker for the radio manufacturers clustered around the Chicago area.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 2 | 314 contacts → | ||||
Strong evidence “Manufacturer of Plate Fin and Finned Tube Heat Exchangers Since 1928 Super Radiator Coils has been engineering and building cost effective, durable and thermal efficient heating…” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 3 | 115 contacts → | ||||
Indirect evidence “Our Magnetics division is a leading world supplier of precision soft magnetic components and materials to the electronics industry.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 4 | 89 contacts → | ||||
Strong evidence “Colmac Coil manufactures new and replacement plate fin heating and cooling coils, dry coolers, air-cooled condensers, and heat pipe air-to-air heat exchangers for the commercial…” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 5 | 51 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 6 | 45 contacts → | ||||
Partial evidence “West Coast Magnetics designs and manufactures medium to high power magnetic components and filters at frequencies up to 100 MHz.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 7 | 44 contacts → | ||||
Indirect evidence “SNC Manufacturing Co, Inc.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 8 | 37 contacts → | ||||
Partial evidence “Precision Coils specializes in manufacturing competitively-priced, precision-engineered replacement coils and OEM coils that always fit and are always on-time.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 9 | 34 contacts → | ||||
Partial evidence “Micrometals has been a leading global manufacturer of inductor cores for over 65 years.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 10 | 34 contacts → | ||||
Indirect evidence “At Hitran, we have been delivering custom magnetic transformers and inductors to clients worldwide for over 55 years.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 11 | 32 contacts → | ||||
Indirect evidence “BADGER MAGNETICS, INC.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 12 | 31 contacts → | ||||
Partial evidence “Vanguard Electronics has been an industry leader for over 60 years in the design and manufacture of inductors and transformers.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 13 | 29 contacts → | ||||
Partial evidence “For nearly 60 years, Gowanda Electronics has been a leader in the design and manufacture of high-performance electronic components for demanding RF and power applications in…” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 14 | 29 contacts → | ||||
Strong evidence “Design and manufacture of custom transformers, inductors, antenna coils, and custom power supplies for military, medical, avionics, and other high reliability marketplaces.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 15 | 29 contacts → | ||||
Partial evidence “Rahn Industries is a nationally recognized quality leader that has been engineering and manufacturing cost effective, OEM, and custom HVAC/R replacement coils for over 30…” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 16 | 28 contacts → | ||||
Strong evidence “Electric coil and transformer manufacturer.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 17 | 28 contacts → | ||||
Partial evidence “Quality Transformer and Electronics designs and manufactures custom transformers, inductors, reactors and electrictronic assemblies.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 18 | 27 contacts → | ||||
Indirect evidence “Since 1981, Pacific Transformer has remained a market leader in the field of custom transformers, magnetic engineering, and power transformer design.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 19 | 26 contacts → | ||||
Strong evidence “Nationwide Coils Enterprises, LLC is a commercial HVAC manufacturer and supplier of custom and OEM replacement coils.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 20 | 25 contacts → | ||||
Indirect evidence “XFMRS is a worldwide magnetics design house.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 21 | 25 contacts → | ||||
Strong evidence “Classic Coil Company manufactures custom precision wound electromagnetic coils and assemblies for demanding applications in medical, aerospace, defense, and industrial markets.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 22 | 23 contacts → | ||||
Partial evidence “Renco Electronics is a world class, Engineering driven manufacturer of inductors, transformers, and subassemblies that utilize magnetic components.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 23 | 20 contacts → | ||||
Indirect evidence “Warner Power is now part of Grand Power Systems!” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 24 | 19 contacts → | ||||
Indirect evidence “Stangenes is a worldwide leader in the design and production of high-voltage pulse transformers and other custom magnetic components.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 25 | 18 contacts → | ||||
Indirect evidence “Houston Transformer Company, LTD.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
RevenueBase Smart Search
RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: encapsulated coil manufacturers. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.
- Strong evidence
- The company's own public description of its business names encapsulated coil manufacturers.
- Partial evidence
- Its own public description names part of encapsulated coil manufacturers, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name encapsulated coil manufacturers. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.
RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.
Showing 25 of 152 encapsulated coil manufacturers based in the United States
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Encapsulated coil manufacturers based in the United States at a glance
As of Sep 30, 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 152 companies.
How this list was built
Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among encapsulated coil manufacturers, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.
- Source
- The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
- What qualifies
- Companies headquartered in the United States whose own description of what they do matches “encapsulated coil manufacturers”. Matching reads each company's description, not its industry code or its name.
- RevenueBase Smart Search
- RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names encapsulated coil manufacturers), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
- What we exclude
- Companies whose own description does not clearly place them among encapsulated coil manufacturers, and records with no verified work email. Companies headquartered outside United States are excluded even when they keep an office there.
- Match quality
- In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
- 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 listed company carries at least one verified work email, 829 across the full list. 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 September 30, 2026. Lists refresh periodically as the graph is re-checked.
- Corrections
- Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.
Frequently asked
What is RevenueBase Smart Search?
RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names encapsulated coil manufacturers, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.
How many encapsulated coil manufacturers are there based in the United States?
RevenueBase identified 152 encapsulated coil manufacturers headquartered in the United States as of September 2026, matched on each company's own description of what it does rather than its industry code.
What is the largest company on this list?
Coilcraft, INC, headquartered in Cary, tops this list with the largest team on record.
Which city has the most encapsulated coil manufacturers?
Anaheim leads with 4 headquartered companies, followed by Longview (4) and Houston (3).
How do I get contact information for these companies?
A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 829 verified decision-maker contacts tracked across these 152 companies.
How current is this list?
The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 30, 2026.
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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 Smart Search, 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.
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