Company lists · Data refreshed September 2026
Top 25 Relay manufacturers based in Germany
RevenueBase identified 66 relay manufacturers headquartered in Germany as of September 2026 and tracks 2,033 professional contacts across them, including 968 with verified work emails. Altendiez is the largest hub.
This list covers relay manufacturers headquartered in Germany, 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 17, 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 relay manufacturers based in Germany
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 1,257 contacts → | ||||
Indirect evidence “About us The Würth Elektronik group of companies, with headquarters in Niedernhall (Hohenlohe), Germany, has about 7,900 employees worldwide and generated global sales of € 1.24…” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 2 | 172 contacts → | ||||
Indirect evidence “Gruner is innovative.” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 3 | 113 contacts → | ||||
Partial evidence “BLOCK – perfecting power In our 80-year company history, BLOCK has expanded under CEO Wolfgang Reichelt to become one of the world's leading manufacturers of transformers, power…” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 4 | 97 contacts → | ||||
Indirect evidence “DAIKIN Manufacturing Germany GmbH is an electrical/electronic manufacturing company based at Langwiesenstraße 10, Güglingen, Baden-Württemberg, Germany.” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 5 | 32 contacts → | ||||
Indirect evidence “FiSCHER Akkumulatorentechnik GmbH is an electrical/electronic manufacturing company based in Neuss, Germany.” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 6 | 20 contacts → | ||||
Indirect evidence “Wir, die fischer electronic solutions GmbH, ein Unternehmensbereich der Unternehmensgruppe fischer, sind ein zukunftsorientierter und erfahrener Elektronik-Dienstleister im…” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 7 | 18 contacts → | ||||
Indirect evidence “Elektrotechnik Thoms GmbH is an electrical/electronic manufacturing company based out of Ristedter Hauptstr.” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 8 | 13 contacts → | ||||
Indirect evidence “TIGRA GmbH is an Electrical and Electronic Manufacturing company located in 2 Gewerbering, Oberndorf am Lech, Bavaria, Germany.” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 9 | 12 contacts → | ||||
Indirect evidence “Electronics.” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 10 | 9 contacts → | ||||
Partial evidence “Producer of -thermic relays -electromechanical relays -time relays -contactors” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 11 | 9 contacts → | ||||
Indirect evidence “ECD Electronic Components GmbH Dresden is an electrical/electronic manufacturing company based out of Heidelberger StraÃe 7.” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 12 | 7 contacts → | ||||
Indirect evidence “Seit über 100 Jahren steht der Name ZETTLER für Innovation und Qualität bei der Entwicklung, Fertigung und Distribution elektronischer Komponenten.” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 13 | 7 contacts → | ||||
Indirect evidence “Frank Bossert Industrievertretungen is an electrical/electronic manufacturing company based out of 17 Hofener Weg, Remseck am Neckar, Baden-Württemberg, Germany.” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 14 | 7 contacts → | ||||
Indirect evidence “Fischer Helmut GmbH Inst.” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 15 | 7 contacts → | ||||
Indirect evidence “WAL Mess- und Regelsysteme GmbH is an electrical/electronic manufacturing company based in 13 Ehnkenweg, Oldenburg, Oldenburg, Lower Saxony, Germany.” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 16 | 7 contacts → | ||||
Indirect evidence “Siegfried Nass GmbH is an electrical/electronic manufacturing company based out of 16 Ivo-Hauptmann-Ring, Hamburg, Hamburg, Germany.” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 17 | 6 contacts → | ||||
Indirect evidence “Lovato Electric GmbH is an electrical/electronic manufacturing company based out of Im Ermlisgrund 30, Waldbronn, Germany.” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 18 | 5 contacts → | ||||
Indirect evidence “HothoData GmbH is an electrical/electronic manufacturing company based out of Bösdorfer Ring 2, Leipzig, Saxony, Germany.” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 19 | 4 contacts → | ||||
Indirect evidence “Coal Control GmbH is an electrical/electronic manufacturing company.” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 20 | 4 contacts → | ||||
Indirect evidence “GTRON Industrieelektronik is an electrical/electronic manufacturing company based out of 3 Zum Gewerbepark, Lünen, North Rhine-Westphalia, Germany.” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 21 | 3 contacts → | ||||
Indirect evidence “Gartenplan Esken & Hindrichs - Gärtner von Eden in Leichlingen is an electrical/electronic manufacturing company based out of 10 Stöcken, Leichlingen, Germany.” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 22 | 3 contacts → | ||||
Indirect evidence “Schaltgeräte, Schütze, Hochstrommagnetschalter, Barrenschütze, wassergekühlte Hochstromkabel, Ofenbauprodukte, Kupferschienen, Sonderlösungen” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 23 | 3 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 24 | 2 contacts → | ||||
Indirect evidence “Digitalfunk OWL is an electrical/electronic manufacturing company based out of 12 Ravensberger Str, Preußisch Oldendorf, North Rhine-Westphalia, Germany.” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 25 | 2 contacts → | ||||
Indirect evidence “Fischel Schweißtechnik GmbH is an electrical/electronic manufacturing company based out of 4 Dechenstraße, Dortmund, Germany.” Source: RevenueBase Database · checked Sep 17, 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: relay 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 relay manufacturers.
- Partial evidence
- Its own public description names part of relay manufacturers, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name relay 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 66 relay manufacturers based in Germany
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Relay manufacturers based in Germany at a glance
As of Sep 17, 2026Companies by employee count
Email recency for this list is measured worldwide rather than for Germany, so it is reported there. Company counts and contact totals on this page are exact for Germany, over 66 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 relay 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 Germany whose own description of what they do matches “relay 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 relay 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 relay manufacturers, and records with no verified work email. Companies headquartered outside Germany 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, 968 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 17, 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 relay 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 relay manufacturers are there based in Germany?
RevenueBase identified 66 relay manufacturers headquartered in Germany 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?
Würth Elektronik Group, headquartered in Niedernhall, tops this list with the largest team on record.
Which city has the most relay manufacturers?
Altendiez leads with 2 headquartered companies, followed by Hamburg (2) and Hannover (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 968 verified decision-maker contacts tracked across these 66 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 17, 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.