Company lists · Data refreshed September 2026

Top 25 Aircraft transformer manufacturers based in the United States

RevenueBase identified 92 aircraft transformer manufacturers headquartered in the United States as of September 2026 and tracks 3,657 professional contacts across them, including 728 with verified work emails. Grand Haven is the largest hub.

This list covers aircraft transformer 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.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 30, 2026 86% judged on-target in blind review
92Companies
3,657Contacts tracked
728Verified emails
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The 25 largest aircraft transformer manufacturers based in the United States

Ranked by team size
Top 25 of 92 aircraft transformer manufacturers based in the United States, ranked by team size, largest first. Data refreshed Sep 30, 2026. RevenueBase Smart Search rates how each company's information relates to aircraft transformer manufacturers: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Strong evidenceKirkland, WA, United StatesHQ checked Sep 30, 2026201-500577 contacts →

Strong evidence

“Astronics Advanced Electronic Systems (AES) in Kirkland, Washington is an industry leading manufacturer of aircraft electrical power systems, including power generation and…”

Source: RevenueBase Database · checked Sep 30, 2026
2Indirect evidenceBohemia, NY, United StatesHQ checked Sep 30, 2026501-1,000242 contacts →

Indirect evidence

“Your Solution Provider for Connectivity, Power, and Control.”

Source: RevenueBase Database · checked Sep 30, 2026
3Partial evidenceBuena Park, CA, United StatesHQ checked Sep 30, 2026501-1,000182 contacts →

Partial evidence

“Leach International Corporation designs and manufactures a broad range of high-reliable power switching and control components and equipment for aerospace, ground vehicle, rail…”

Source: RevenueBase Database · checked Sep 30, 2026
4Indirect evidenceBordentown, NJ, United StatesHQ checked Sep 30, 2026201-500177 contacts →

Indirect evidence

“NWL Inc.”

Source: RevenueBase Database · checked Sep 30, 2026
5Strong evidenceCanonsburg, PA, United StatesHQ checked Sep 30, 2026201-500169 contacts →

Strong evidence

“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…”

Source: RevenueBase Database · checked Sep 30, 2026
6Partial evidenceLake Mary, FL, United StatesHQ checked Sep 30, 2026201-500134 contacts →

Partial evidence

“At JST Power Equipment, we pride ourselves on delivering world-class transformer and electrical equipment solutions.”

Source: RevenueBase Database · checked Sep 30, 2026
7Indirect evidenceWichita, KS, United StatesHQ checked Sep 30, 2026201-500132 contacts →

Indirect evidence

“Mid-Continent Instrument and Avionics provides superior instruments, avionics and power solutions to the global aerospace industry.”

Source: RevenueBase Database · checked Sep 30, 2026
8Indirect evidenceLos Osos, CA, United StatesHQ checked Sep 30, 2026201-500127 contacts →

Indirect evidence

“Located on California’s beautiful Central Coast, Rantec Power Systems has been providing power conversion products since 1971.”

Source: RevenueBase Database · checked Sep 30, 2026
9Indirect evidenceFort Worth, TX, United StatesHQ checked Sep 30, 202651-200115 contacts →

Indirect evidence

“Founded in 1993 InterConnect Wiring continues to be a world leader in supplying military aerospace electrical products.”

Source: RevenueBase Database · checked Sep 30, 2026
10Indirect evidenceSaratoga Springs, NY, United StatesHQ checked Sep 30, 202651-200112 contacts →

Indirect evidence

“Espey is a recognized industry leader of power conversion, magnetics, and build-to-print products, and dynamic lifecycle management services that support the demands of the…”

Source: RevenueBase Database · checked Sep 30, 2026
11Indirect evidenceAvenel, NJ, United StatesHQ checked Sep 30, 2026201-500110 contacts →

Indirect evidence

“As a pioneering designer, producer and supplier of advanced power conversion equipment, Avionic Instruments has helped power flight for more than 40 years.”

Source: RevenueBase Database · checked Sep 30, 2026
12Indirect evidenceBlacksburg, VA, United StatesHQ checked Sep 30, 2026201-50093 contacts →

Indirect evidence

“Leading DC-DC Power Converters and Accessories for Mission Critical Applications.”

Source: RevenueBase Database · checked Sep 30, 2026
13Partial evidenceCamarillo, CA, United StatesHQ checked Sep 30, 202651-20091 contacts →

Partial evidence

“Skurka Aerospace, Inc (SAI) is an ISO 9001/AS 9100 certified and world-renowned high-quality designer, developer, and manufacturer of electro-magnetic equipment, specializing in…”

Source: RevenueBase Database · checked Sep 30, 2026
14Partial evidenceWaco, TX, United StatesHQ checked Sep 30, 202651-20086 contacts →

Partial evidence

“VanTran Transformers is now part of Forgent Power Solutions.”

Source: RevenueBase Database · checked Sep 30, 2026
15Indirect evidenceSarasota, FL, United StatesHQ checked Sep 30, 202651-20079 contacts →

Indirect evidence

“From emergency power supplies, power distribution and control, cockpit instrumentation to data acquisition units, to our full suite of passenger comfort/cabin products, you can…”

Source: RevenueBase Database · checked Sep 30, 2026
16Indirect evidenceBelmont, NH, United StatesHQ checked Sep 30, 202651-20056 contacts →

Indirect evidence

“Since 1984, Milpower Source, Inc.”

Source: RevenueBase Database · checked Sep 30, 2026
17Partial evidenceRichmond, IL, United StatesHQ checked Sep 30, 202651-20051 contacts →

Partial evidence

“75 Years of Engineering Excellence in the Delivered Worldwide Olsun Electrics is the industry’s most trusted partner for custom dry-type transformers.”

Source: RevenueBase Database · checked Sep 30, 2026
18Indirect evidenceLee's Summit, MO, United StatesHQ checked Sep 30, 202651-20049 contacts →

Indirect evidence

“ULTRAX Aerospace, Inc.”

Source: RevenueBase Database · checked Sep 30, 2026
19Indirect evidenceMorgantown, WV, United StatesHQ checked Sep 30, 202651-20037 contacts →

Indirect evidence

“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.”

Source: RevenueBase Database · checked Sep 30, 2026
20Indirect evidenceRoanoke, VA, United StatesHQ checked Sep 30, 202651-20036 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 30, 2026
21Strong evidenceHuntington Beach, CA, United StatesHQ checked Sep 30, 2026201-50031 contacts →

Strong 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, 2026
22Strong evidenceMilpitas, CA, United StatesHQ checked Sep 30, 202651-20028 contacts →

Strong evidence

“Quality Transformer and Electronics designs and manufactures custom transformers, inductors, reactors and electrictronic assemblies.”

Source: RevenueBase Database · checked Sep 30, 2026
23Partial evidenceAnaheim, CA, United StatesHQ checked Sep 30, 202651-20027 contacts →

Partial 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, 2026
24Indirect evidenceGrand Haven, MI, United StatesHQ checked Sep 30, 202651-20020 contacts →

Indirect evidence

“Warner Power is now part of Grand Power Systems!”

Source: RevenueBase Database · checked Sep 30, 2026
25Partial evidenceNorth Ridgeville, OH, United StatesHQ checked Sep 30, 202611-5016 contacts →

Partial evidence

“Norlake Manufacturing Company | Engineered transformers and custom transformer solutions for over 50 years.”

Source: RevenueBase Database · checked Sep 30, 2026

Showing 25 of 92 aircraft transformer manufacturers based in the United States

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Aircraft transformer manufacturers based in the United States at a glance

As of Sep 30, 2026
19.9%Verified-email coverage
39.8Average contacts per company
11-50Median size (employees)
3.3%Largest-city concentration · Grand Haven
Sep 30, 2026Page data refreshed

Companies by employee count

1-10
21
11-50
36
51-200
20
201-500
10
501-1,000
3
1,001-5,000
2

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 92 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 aircraft transformer 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 “aircraft transformer 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 aircraft transformer 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 aircraft transformer 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, 728 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 aircraft transformer 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 aircraft transformer manufacturers are there based in the United States?

RevenueBase identified 92 aircraft transformer 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?

Astronics AES, headquartered in Kirkland, tops this list with the largest team on record.

Which city has the most aircraft transformer manufacturers?

Grand Haven leads with 3 headquartered companies, followed by Addison (2) and Camarillo (2).

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 728 verified decision-maker contacts tracked across these 92 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.