Company lists · Data refreshed September 2026

Top 18 Hydropower equipment repair companies based in Germany

RevenueBase identified 46 hydropower equipment repair companies headquartered in Germany as of September 2026 and tracks 3,700 professional contacts across them, including 1,343 with verified work emails. Hamburg is the largest hub.

This list covers hydropower equipment repair companies 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 15, 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 15, 2026 86% judged on-target in blind review
46Companies
3,700Contacts tracked
1,343Verified emails
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The 18 largest hydropower equipment repair companies based in Germany

Ranked by team size
Top 18 of 46 hydropower equipment repair companies based in Germany, ranked by team size, largest first. Data refreshed Sep 15, 2026. RevenueBase Smart Search rates how each company's information relates to hydropower equipment repair companies: 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
1Indirect evidenceHeidenheim, GermanyHQ checked Sep 15, 20265,001-10,0003,267 contacts →

Indirect evidence

“Voith Hydro is one of the leading industrial partners for #PowerStation operators - worldwide.”

Source: RevenueBase Database · checked Sep 15, 2026
2Indirect evidenceRavensburg, GermanyHQ checked Sep 15, 2026201-500173 contacts →

Indirect evidence

“Die Wasserkraftsparte der ANDRITZ GRUPPE ist ein globaler Anbieter für elektromechanische Ausrüstungen und Serviceleistungen “from water-to-wire” für Wasserkraftwerke und einer…”

Source: RevenueBase Database · checked Sep 15, 2026
3Partial evidenceBitterfeld-wolfen, GermanyHQ checked Sep 15, 202651-20015 contacts →

Partial evidence

“Emerged out of the traditional armature winding shop of the industrial business group Braunkohlekombinat Bitterfeld in 1992, we have been carrying out repair works of all kinds of…”

Source: RevenueBase Database · checked Sep 15, 2026
4Indirect evidenceNeusäß, GermanyHQ checked Sep 15, 202651-20014 contacts →

Indirect evidence

“Was uns auszeichnet - 100% Herstellerunabhängig: Egal welche Marke oder Bauform – wir prüfen Ihre Komponenten herstellerübergreifend auf Herz und Nieren- Wirtschaftlich &…”

Source: RevenueBase Database · checked Sep 15, 2026
5Partial evidenceRenchen, GermanyHQ checked Sep 15, 202651-20014 contacts →

Partial evidence

“Through the consumption of fossil fuels, the technologies of the future will depend on renewable energy sources like hydropower.”

Source: RevenueBase Database · checked Sep 15, 2026
6Partial evidenceMoers, GermanyHQ checked Sep 15, 202611-5012 contacts →

Partial evidence

“TST - Turbo Service & Trading GmbH is a complete service provider for Rotating Equipment.”

Source: RevenueBase Database · checked Sep 15, 2026
7Indirect evidenceHerbrechtingen, GermanyHQ checked Sep 15, 202651-20010 contacts →

Indirect evidence

“Stellba Hydro ist eine Unternehmung mit Spezialisierung auf dem Gebiet der Modernisierung, Service und Upgrading von Wasserkraftwerken.”

Source: RevenueBase Database · checked Sep 15, 2026
8Partial evidenceFrechen, GermanyHQ checked Sep 15, 202651-2008 contacts →

Partial evidence

“We deal with the maintenance, repair and reprocessing of rotating industrial components.”

Source: RevenueBase Database · checked Sep 15, 2026
9Partial evidenceBremerhaven, GermanyHQ checked Sep 15, 202651-2007 contacts →

Partial evidence

“Expert for generator Maintenance and repair Onshore and offshore experience On site or work shop Partner for manufacturers and operators Permanently excited synchronous machines…”

Source: RevenueBase Database · checked Sep 15, 2026
10Indirect evidenceFriedrichshafen, GermanyHQ checked Sep 15, 202611-507 contacts →

Indirect evidence

“Elektromaschinenbau Mangold GmbH wurde 1932 gegründet und ist seitdem einer der führenden Anbieter für Service und Wartung von Elektromotoren, Pumpen und Frequenzumrichter.”

Source: RevenueBase Database · checked Sep 15, 2026
11Indirect evidenceOberhausen, GermanyHQ checked Sep 15, 20261-104 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 15, 2026
12Indirect evidenceHamburg, GermanyHQ checked Sep 15, 20261-104 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 15, 2026
13Partial evidenceLeutershausen, GermanyHQ checked Sep 15, 202611-503 contacts →

Partial evidence

“Turbinenbau, Ersatzteilfertigung und Reparaturen im Turbinenbau jeglicher Art.”

Source: RevenueBase Database · checked Sep 15, 2026
14Indirect evidenceOffenbach Am Main, GermanyHQ checked Sep 15, 202611-503 contacts →

Indirect evidence

“BÜHLER und SELL ist der größte und älteste im Rhein- Main Gebiet ansässige Elektromaschinenbaubetrieb.”

Source: RevenueBase Database · checked Sep 15, 2026
15Indirect evidenceTrier, GermanyHQ checked Sep 15, 202651-2002 contacts →

Indirect evidence

“HSI steht für Hydro Service International und wurde als die HSI Hydro Engineering GmbH im Jahr 1982 von den zwei Maschinenbauingenieuren Harald Hersel und Herbert Pilz gegründet.”

Source: RevenueBase Database · checked Sep 15, 2026
16Indirect evidenceOberhausen, GermanyHQ checked Sep 15, 202611-502 contacts →

Indirect evidence

“Your need is our energy We have a team of experienced personnel for power plant process engineering.”

Source: RevenueBase Database · checked Sep 15, 2026
17Indirect evidenceDresden, GermanyHQ checked Sep 15, 20261-101 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 15, 2026
18Indirect evidenceCoburg, GermanyHQ checked Sep 15, 20261-101 contacts →

Indirect evidence

“Nach unserem Motto Alles rund um die Wasserkraft bieten wir Ihnen Dienstleitungen und Produkte für Ihre Wasserkraftanlage an.”

Source: RevenueBase Database · checked Sep 15, 2026

Showing 18 of 46 hydropower equipment repair companies based in Germany

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Hydropower equipment repair companies based in Germany at a glance

As of Sep 15, 2026
36.3%Verified-email coverage
80.4Average contacts per company
11-50Median size (employees)
4.3%Largest-city concentration · Hamburg
Sep 15, 2026Page data refreshed

Companies by employee count

1-10
17
11-50
13
51-200
9
201-500
3
5,001-10,000
1

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 46 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 hydropower equipment repair companies, 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 “hydropower equipment repair companies”. 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 hydropower equipment repair companies), 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 hydropower equipment repair companies, 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, 1,343 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 15, 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 hydropower equipment repair companies, 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 hydropower equipment repair companies are there based in Germany?

RevenueBase identified 46 hydropower equipment repair companies 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?

Voith Hydro, headquartered in Heidenheim, tops this list with the largest team on record.

Which city has the most hydropower equipment repair companies?

Hamburg leads with 2 headquartered companies, followed by Karlsruhe (2) and Oberhausen (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 1,343 verified decision-maker contacts tracked across these 46 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 15, 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.