Company lists · Data refreshed September 2026
Top 25 Ac-dc power supply manufacturers worldwide
RevenueBase identified 1,015 ac-dc power supply manufacturers worldwide as of September 2026 and tracks 30,264 professional contacts across them, including 6,272 with verified work emails. The United States is the largest market and Shenzhen the largest hub.
This list covers ac-dc power supply manufacturers worldwide, 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. Country and city lists for ac-dc power supply manufacturers follow the table.
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 ac-dc power supply manufacturers worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 9,672 contacts → | ||||
Strong evidence “Delta is a global innovative provider of switching power supplies and DC brushless fans, as well as a major source for power management solutions, components, visual displays…” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 2 | 1,111 contacts → | ||||
Strong evidence “Artesyn Embedded Power is an Advanced Energy product brand and is well recognized as a global leader in the design and manufacture of highly reliable power conversion solutions…” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 3 | 805 contacts → | ||||
Strong evidence “We are committed to being a leading provider of power solutions, including AC-DC power supplies and DC-DC converters, high voltage power supplies and RF power supplies.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 4 | 660 contacts → | ||||
Strong evidence “AEG Power Solutions, an independent international company, is a global leader in power supply and conversion for industrial and renewable applications with distinctive expertise…” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 5 | 540 contacts → | ||||
Strong evidence “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.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 6 | 468 contacts → | ||||
Partial evidence “ASCO Power Technologies has provided power reliability solutions for more than 125 years.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 7 | 369 contacts → | ||||
Partial evidence “Murata Power Solutions is powering the future with sustainable energy solutions.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 8 | 290 contacts → | ||||
Strong evidence “Astrodyne TDI is a custom designer and manufacturer of innovative power solutions for demanding applications worldwide.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 9 | 280 contacts → | ||||
Strong evidence “PULS is Europe’s biggest manufacturer of industrial DC power solutions and a global technology leader for reliable power supplies for demanding applications.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 10 | 263 contacts → | ||||
Strong evidence “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…” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 11 | 260 contacts → | ||||
Strong evidence “Astrodyne TDI designs and manufactures innovative power solutions for various demanding applications worldwide.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 12 | 232 contacts → | ||||
Strong evidence “FSP Group is the leading power supply manufacturer in the world.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 13 | 220 contacts → | ||||
Partial evidence “MEGMEET Engineered to Empower™ MEGMEET is a leading turnkey solution provider specializing in power solutions for data centers and networking, e-mobility and EV infrastructure…” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 14 | 209 contacts → | ||||
Strong evidence “Since the discovery of the first plug-in power supply unit in the world, our demanding customers have been able to fully rely on FRIWO for their power supply needs.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 15 | 206 contacts → | ||||
Partial evidence “At CUI our purpose is straight-forward: power products how you want them, when you want them.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 16 | 185 contacts → | ||||
Indirect evidence “Sustainability, Safety and Efficiency through Innovations For more than half a century BENNING products have improved the safe and efficient utilisation of energy resources.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 17 | 163 contacts → | ||||
Partial evidence “Enedo is now Inission Power.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 18 | 138 contacts → | ||||
Strong evidence “Founded in 1989, Lex Innovations has grown into a leading North American manufacturer of innovative power distribution solutions for demanding markets, including industrial…” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 19 | 129 contacts → | ||||
Partial evidence “EOS Power was acquired by Bel Fuse Inc.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 20 | 127 contacts → | ||||
Partial 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, 2026Thanks. The Data Team will review it. | |||||
| 21 | 118 contacts → | ||||
Partial evidence “At Premium PSU, we specialize in the design and manufacturing of power conversion systems.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 22 | 111 contacts → | ||||
Strong evidence “Moso Power Supply Technology is a mechanical or industrial engineering company based out of SHENZHEN.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 23 | 105 contacts → | ||||
Indirect evidence “Quality and service for the world market Sustainability, safety and efficiency through innovations: For more than half a century BENNING products have improved the safe and…” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 24 | 102 contacts → | ||||
Strong evidence “RGM started its activity in 1986 with the design and production of power supplies.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 25 | 101 contacts → | ||||
Indirect evidence “TDK-Lambda is a subsidiary of TDK Corporation, a leading global electronics company.” 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: ac-dc power supply 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 ac-dc power supply manufacturers.
- Partial evidence
- Its own public description names part of ac-dc power supply manufacturers, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name ac-dc power supply 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 1,015 ac-dc power supply manufacturers worldwide
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Ac-dc power supply manufacturers worldwide at a glance
As of Sep 30, 2026Companies by employee count
Email recency is reported on each country list linked below.
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 ac-dc power supply 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.
- Coverage
- Every country. Country and city lists for ac-dc power supply manufacturers are linked below.
- What qualifies
- Companies worldwide whose own description of what they do matches “ac-dc power supply 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 ac-dc power supply 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 ac-dc power supply manufacturers, and records with no verified work email.
- 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, 6,272 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.
Ac-dc power supply manufacturers by location
5 lists · largest firstEvery Ac-dc power supply manufacturers list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
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 ac-dc power supply 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 ac-dc power supply manufacturers are there worldwide?
RevenueBase identified 1,015 ac-dc power supply manufacturers worldwide 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?
Delta Electronics, headquartered in Worldwide, tops this list with the largest team on record.
Which country has the most ac-dc power supply manufacturers?
The United States leads with 147 companies, followed by India (91) and Germany (61). Every ac-dc power supply manufacturers list by country and city is linked on this page.
Which city has the most ac-dc power supply manufacturers?
Shenzhen leads with 77 headquartered companies, followed by Dongguan (19) and Pune (10).
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 6,272 verified decision-maker contacts tracked across these 1,015 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.