Company lists · Data refreshed September 2026
Top 25 Energy infrastructure contractors based in Germany
RevenueBase identified 289 energy infrastructure contractors headquartered in Germany as of September 2026 and tracks 3,755 professional contacts across them, including 1,170 with verified work emails. Berlin is the largest hub.
This list covers energy infrastructure contractors 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 16, 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 energy infrastructure contractors based in Germany
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 272 contacts → | ||||
Indirect evidence “Wer die Zukunft nachhaltig gestalten will, muss heute gut vernetzt sein.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 2 | 244 contacts → | ||||
Indirect evidence “INP International Projects is an owner-managed engineering company with its headquarters in Römerberg.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 3 | 195 contacts → | ||||
Partial evidence “Partner for the energy Industry Bilfinger has successfully supported and advised customers from the energy industry for decades.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 4 | 158 contacts → | ||||
Indirect evidence “Bohlen & Doyen ist ein Team aus mehr als kompetenten Mitarbeitern.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 5 | 142 contacts → | ||||
Partial evidence “STEAG Energy Services GmbH (SES) is one of the world’s leading service providers for power assets: we offer German minded engineering for more than MW of installed capacity in a…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 6 | 131 contacts → | ||||
Indirect evidence “LTB Leitungsbau GmbH is an utilities company based out of Friedrich-List-Straße 27, Radebeul, Germany.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 7 | 87 contacts → | ||||
Indirect evidence “Wir sind die Spezialisten für den Betrieb leitungsgebundener Infrastruktur: Strom, Gas, Wasser und Wärme.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 8 | 68 contacts → | ||||
Indirect evidence “Als Firmengruppe gemeinsam stark: Mit mehr als 2.700 Mitarbeitenden an über 40 Standorten sind wir deutschlandweit der führende Dienstleister für die Telekommunikations- und…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 9 | 65 contacts → | ||||
Partial evidence “ENACO Energieanlagen - und Kommunikationstechnik GmbH is a construction company based out of TULPENSTRAßE 19, Maisach, Germany.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 10 | 58 contacts → | ||||
Partial evidence “Vernetzt für die Energiezukunft Seit 2007 sorgen mehr als 400 Mitarbeitende dafür, dass Leipzig sicher und zuverlässig mit Energie versorgt wird.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 11 | 48 contacts → | ||||
Partial evidence “Energy is a fundamental physical variable, it can neither be generated nor destroyed, it can only be transformed.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 12 | 45 contacts → | ||||
Indirect evidence “Heitkamp blickt auf mehr als 130 Jahre Bautradition zurück.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 13 | 41 contacts → | ||||
Partial evidence “Als anerkanntes Engineering-Unternehmen für Energiespeicher- und Energiesystemdienstleistungen führt die ESK GmbH seit vielen Jahren nationale und internationale Projekte…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 14 | 39 contacts → | ||||
Indirect evidence “Mit unseren Anlagen ersetzen wir Kraftwerke.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 15 | 38 contacts → | ||||
Indirect evidence “Seit über 30 Jahren ist die Kuhlmann Leitungsbau GmbH & Co.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 16 | 38 contacts → | ||||
Indirect evidence “Bauen für die Zukunft Und alles mit der Erfahrung eines Traditionsunternehmens.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 17 | 37 contacts → | ||||
Partial evidence “Energieversorgung neu gedacht: Industriestandard trifft Handschlagqualität.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 18 | 36 contacts → | ||||
Partial evidence “Fiber- und Energy-Infrastrukturen in Deutschland!” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 19 | 35 contacts → | ||||
Indirect evidence “HIS makes solar projects reliable and efficient.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 20 | 32 contacts → | ||||
Partial evidence “Die Energiedienstleistungen Rhein-Neckar GmbH (ERN) ist Teil der GreenFlex Organisation und ist im Schwerpunkt verantwortlich für Bau- und Contracting-Lösungen im industriellen…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 21 | 29 contacts → | ||||
Indirect evidence “Wissen.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 22 | 26 contacts → | ||||
Indirect evidence “From Hamburg to the world: For 40 years, S.E.T.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 23 | 24 contacts → | ||||
Partial evidence “energy grid service, Ihr Partner für die elektrische Infrastruktur und Services für Ihre Energieanlagen.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 24 | 23 contacts → | ||||
Indirect evidence “BORSIG Service GmbH, a member of the BORSIG Group, offers comprehensive services for power generation, chemicals and petrochemicals as well as oil, gas and water supply.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 25 | 21 contacts → | ||||
Indirect evidence “Die K&T Infrastruktur GmbH ist seit mehr als 30 Jahren als Spezialist im Kabelleitungstiefbau tätig.” Source: RevenueBase Database · checked Sep 16, 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: energy infrastructure contractors. 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 energy infrastructure contractors.
- Partial evidence
- Its own public description names part of energy infrastructure contractors, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name energy infrastructure contractors. 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 289 energy infrastructure contractors based in Germany
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Energy infrastructure contractors based in Germany at a glance
As of Sep 16, 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 289 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 energy infrastructure contractors, 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 “energy infrastructure contractors”. 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 energy infrastructure contractors), 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 energy infrastructure contractors, 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, 1,170 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 16, 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 energy infrastructure contractors, 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 energy infrastructure contractors are there based in Germany?
RevenueBase identified 289 energy infrastructure contractors 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?
Westfalen Weser, headquartered in Paderborn, tops this list with the largest team on record.
Which city has the most energy infrastructure contractors?
Berlin leads with 10 headquartered companies, followed by Hamburg (9) and Dusseldorf (6).
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 1,170 verified decision-maker contacts tracked across these 289 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 16, 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.
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