Company lists · Data refreshed October 2026

Top 25 Heat treatment services aerospace companies based in Germany

RevenueBase identified 86 company matches for heat treatment services aerospace companies associated with Germany as of October 2026 and tracks 580 professional contacts across them, including 155 with verified work emails. Erbach is the largest hub.

This list covers company matches for heat treatment services aerospace companies associated with Germany, 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 14, 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.

How to read this list RevenueBase SmartSearch · Exact Recorded Oct 14, 2026 How this list was built
86Companies
580Contacts tracked
155Verified emails
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The 25 largest heat treatment services aerospace companies based in Germany

Ranked by team size
Top 25 of 86 company matches for heat treatment services aerospace companies based in Germany, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 14, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchAlsdorf, GermanyHQ recorded Oct 14, 2026201-50061 contacts →

Exact match

“We improve what matters.”

Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
2Exact matchBochum, GermanyHQ recorded Oct 14, 2026201-50030 contacts →

Exact match

“Präzisionstechnologie braucht Wärmebehandlung.”

Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
3Exact matchHanover, GermanyHQ recorded Oct 14, 2026501-1,00030 contacts →

Exact match

“Die Hanomag Lohnhärterei ist aus der ehemaligen Betriebshärterei der Hannoverschen Maschinenbau AG -kurz Hanomag- hervorgegangen und blickt somit auf eine lange Tradition in der…”

Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
4Exact matchUlm, GermanyHQ recorded Oct 14, 2026501-1,00022 contacts →

Exact match

“Die SHU Schwäbische Härtetechnik ist Deutschlands größte inhabergeführte Lohnhärterei an einem Standort.”

Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
5Exact matchWitten, GermanyHQ recorded Oct 14, 2026201-50021 contacts →

Exact match

“Die VTN-Gruppe ist ein führender Anbieter von Wärmebehandlungen mit einem breiten Portfolio unterschiedlichster Technologien.”

Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
6Exact matchOberursel, GermanyHQ recorded Oct 14, 202651-20020 contacts →

Exact match

“Wir sind Ihr kompetenter Partner im Bereich Oberflächen­beschichtung und Wärmebehandlung.”

Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
7Exact matchEschenbach, GermanyHQ recorded Oct 14, 202651-20014 contacts →

Exact match

“Egal ob für die Automobilindustrie oder die Luft- und Raumfahrttechnik, ob Equipment für Wanderausrüstungen oder E-Bikes, unsere Dienstleistungen finden in vielen Bereichen…”

Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
8Exact matchKreuztal, GermanyHQ recorded Oct 14, 202651-20014 contacts →

Exact match

“For more than 100 years, InProCoat has represented high-quality protection of large steel and NF metal surfaces.”

Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
9Exact matchDresden, GermanyHQ recorded Oct 14, 202651-20011 contacts →

Exact match

“BWB ist Ihr kompetenter Partner für die funktionelle Oberflächenveredelung von Aluminium, Titan, Kupfer und deren Legierungen sowie CrNiSt-Werkstoffen, Sonderwerkstoffen…”

Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
10Exact matchGammertingen-harthausen, GermanyHQ recorded Oct 14, 202651-2009 contacts →

Exact match

“Spezialhärterei für Werkzeug- und Formenbau, Maschinen- und Anlagenbau, Medizintechnik, Lebensmittelindustrie, Luft- und Raumfahrt.”

Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
11Exact matchDelbrück, GermanyHQ recorded Oct 14, 202651-2008 contacts →

Exact match

“With innovative heat treatment processes, we optimise the material properties of the components, allowing them to be used in a wide range of areas – even replacing steel.”

Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
12Exact matchAugustdorf, GermanyHQ recorded Oct 14, 202651-2007 contacts →

Exact match

“Schnelligkeit ist unsere Stärke 1975 gegründet als mittelständisches, familiengeführtes Unternehmen nehmen wir heute eine Vorreiterrolle im Bereich der modernen Werkzeugbehandlung…”

Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
13Exact matchSiegen, GermanyHQ recorded Oct 14, 202651-2006 contacts →

Exact match

“Die SWF Eine Gruppe für präzise Lösungen vereint seit über 100 Jahren Kompetenz in der CNC–Bearbeitung und der thermischen und thermochemischen Wärmebehandlung – unsere…”

Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
14Exact matchErbach, GermanyHQ recorded Oct 14, 20261-105 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
15Exact matchEssen, GermanyHQ recorded Oct 14, 202611-505 contacts →

Exact match

“Seit über 30 Jahren sind wir Ihr zuverlässiger Partner für anspruchsvolle Wärmebehandlungsprozesse.”

Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
16Exact matchBrackenheim, GermanyHQ recorded Oct 14, 20261-105 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
17Exact matchWetter, GermanyHQ recorded Oct 14, 202651-2004 contacts →

Exact match

“Die KGO verfügt über mehr als 75 Jahre Erfahrung in der Fertigung von Stahlkonstruktionen jeglicher Art, speziell von Ofengehäusen für die industrielle Wärmebehandlung von…”

Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
18Exact matchLüdenscheid, GermanyHQ recorded Oct 14, 202651-2004 contacts →

Exact match

“Hertwig Härtetechnik beschäftigt 120 Mitarbeiter an zwei Standorten in Lüdenscheid und ist der zuverlässige Partner in Wärmebehandlungsfragen für den Werkzeug- und Maschinenbau.”

Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
19Exact matchEssingen, GermanyHQ recorded Oct 14, 202611-504 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
20Exact matchWerdohl, GermanyHQ recorded Oct 14, 20261-104 contacts →

Exact match

“Härterei Kirchhoff GmbH is a company based out of Werdohl, North Rhine-Westphalia, Germany.”

Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
21Exact matchSchwerin, GermanyHQ recorded Oct 14, 20261-103 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
22Exact matchArnstadt, GermanyHQ recorded Oct 14, 20261-103 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
23Exact matchToppenstedt, GermanyHQ recorded Oct 14, 202651-2002 contacts →

Exact match

“Stahlhärterei Haupt GmbH is a company based out of 16 Quarrendorfer Weg, Toppenstedt, Lower Saxony, Germany.”

Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
24Exact matchGevelsberg, GermanyHQ recorded Oct 14, 202611-502 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
25Exact matchErkelenz, GermanyHQ recorded Oct 14, 202611-502 contacts →

Exact match

“Wir sind die Spezialisten für die Wärmebehandlung und Oberflächentechnik von Stahlbauteilen.”

Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase

Showing 25 of 86 heat treatment services aerospace companies based in Germany

See the full list, filter by size, metro and specialty, and access 155 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Heat treatment services aerospace companies based in Germany at a glance

As of Oct 14, 2026
26.7%Verified-email coverage
6.7Average contacts per company
11-50Median size (employees)
2.3%Largest-city concentration · Erbach
Oct 14, 2026Page data refreshed

Companies by employee count

1-10
32
11-50
17
51-200
26
201-500
5
501-1,000
2

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 86 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 Germany whose business descriptions match “heat treatment services aerospace companies” 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 155 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 14, 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 “heat treatment services aerospace companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many heat treatment services aerospace companies are there based in Germany?

RevenueBase identified 86 company matches for heat treatment services aerospace companies associated with Germany 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?

Härtha Group tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most heat treatment services aerospace companies?

Erbach leads with 2 company records, followed by Kreuztal (2) and Magdeburg (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 155 professional contacts with verified work emails tracked across these 86 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 14, 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 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.