Company lists · Data refreshed September 2026
Top 25 Nuclear engineering consulting firms based in Germany
RevenueBase identified 164 nuclear engineering consulting firms headquartered in Germany as of September 2026 and tracks 1,211 professional contacts across them, including 515 with verified work emails and 10 with mobile numbers. Berlin is the largest hub.
This list covers nuclear engineering consulting firms 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 5, 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 nuclear engineering consulting firms based in Germany
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 244 contacts → | ||||
Partial evidence “INP International Projects is an owner-managed engineering company with its headquarters in Römerberg.” Source: RevenueBase Database · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 2 | 70 contacts → | ||||
Indirect evidence “We are visionaries and engineers, generalists and specialists.” Source: RevenueBase Database · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 3 | 64 contacts → | ||||
Strong evidence “Our primary business areas include management of radioactive and hazardous waste, decommissioning of nuclear facilities as well as engineering and consulting services.” Source: RevenueBase Database · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 4 | 30 contacts → | ||||
Indirect evidence “We are experts in plant and power station construction.” Source: RevenueBase Database · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 5 | 29 contacts → | ||||
Indirect evidence “Die Ingenion GmbH mit Sitz in Hamburg ist ein Ingenieurbüro, das seit 20 Jahren erfolgreich in den Bereichen Energie, Luftfahrt und Anlagenbau tätig ist.” Source: RevenueBase Database · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 6 | 27 contacts → | ||||
Indirect evidence “Sachverstand und Kreativität, Erfahrung und Neugier, ergänzt durch Ausbildung und Weiterbildung, bewährte Lösungen und innovative Ideen, sowie Flexibilität und Bewegung in den…” Source: RevenueBase Database · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 7 | 23 contacts → | ||||
Indirect evidence “REHATEC ist eine unabhängige Beratungs- und Planungsgesellschaft für die technische Gebäudeausrüstung (TGA) und Gebäudeplanung, die sich auf den Bereich des Industrie- und…” Source: RevenueBase Database · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 8 | 23 contacts → | ||||
Strong evidence “Energy consulting for industry and engineering for thermal, process, and energy systems – solving complex challenges and maximizing efficiency through simulation, thermodynamics…” Source: RevenueBase Database · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 9 | 21 contacts → | ||||
Indirect evidence “Als kreatives Ingenieurbüro unterstützen wir unsere Kunden und Partner mit Know-how und zukunftsweisenden Technologien: von der Beratung und Planung, über die Steuerung bis hin…” Source: RevenueBase Database · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 10 | 20 contacts → | ||||
Partial evidence “For more than 45 years we have worked as an engineering firm with more than 70 employees in the planning of process plants.” Source: RevenueBase Database · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 11 | 18 contacts → | ||||
Indirect evidence “Die auf Kerntechnik spezialisierte WTI mit Sitz in Jülich ist das Ingenieurunternehmen der GNS-Gruppe.” Source: RevenueBase Database · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 12 | 18 contacts → | ||||
Strong evidence “We are one of the world's leading consulting and engineering companies in radioactive waste management.” Source: RevenueBase Database · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 13 | 14 contacts → | ||||
Indirect evidence “Tradition und Kompetenz seit mehr als 80 Jahren Herr Professor Dr.” Source: RevenueBase Database · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 14 | 14 contacts → | ||||
Indirect evidence “WP Ingenieure ist ein erfolgreiches und expandierendes inhabergeführtes Ingenieurunternehmen mit über 60 Mitarbeitern in Hamburg.” Source: RevenueBase Database · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 15 | 13 contacts → | ||||
Indirect evidence “Wir sind ein mittelständisches Ingenieurunternehmen aus Deutschland und bieten 25 Jahre Erfahrung in den Bereichen- Beratung - Planung - Überwachung - Inbetriebsetzung - Betrieb…” Source: RevenueBase Database · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 16 | 12 contacts → | ||||
Indirect evidence “On the basis of our broad know-how and many years of international experience and contact we offer qualified consultation in all current and future applications of radioactivity…” Source: RevenueBase Database · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 17 | 12 contacts → | ||||
Indirect evidence “Als unabhängiges Planungs- und Beratungsbüro bündeln wir langjährige Erfahrung und tiefgehendes Fachwissen im Energiesektor, um für unsere Kunden ganzheitliche Projektlösungen zu…” Source: RevenueBase Database · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 18 | 12 contacts → | ||||
Indirect evidence “rdi Ingenieurgesellschaft mbH is a company based in Berlin, Germany.” Source: RevenueBase Database · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 19 | 11 contacts → | ||||
Indirect evidence “Consentec ist ein auf technische und energiewirtschaftliche Fragestellungen der Strom- und Gasversorgung spezialisiertes Beratungsunternehmen.” Source: RevenueBase Database · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 20 | 11 contacts → | ||||
Partial evidence “Die intelligentplant Engineering GmbH hat sich seit 2009 als führendes Ingenieurbüro für die Planung und Berechnung von Rohrleitungen, Halterungen und Stahlbau im Kraftwerks- und…” Source: RevenueBase Database · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 21 | 9 contacts → | ||||
Partial evidence “INDUSTRIAL ENGINEERING beraten | planen | realisieren LINDSCHULTE IE ist der Ansprechpartner für modernste Anlagentechnik in der Industrie und Energiewirtschaft.” Source: RevenueBase Database · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 22 | 9 contacts → | ||||
Indirect evidence “NUTEC wurde im Jahr 2023 von zwei erfahrenen Ingenieuren mit gemeinsam mehr als 30 Jahren Berufserfahrung in der Kerntechnikbranche gegründet.” Source: RevenueBase Database · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 23 | 8 contacts → | ||||
Indirect evidence “GREEN German Reengineering ist das Gegenteil von einem Klassiker, das Gegenteil von einem klassischen Ingenieurbüro.” Source: RevenueBase Database · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 24 | 8 contacts → | ||||
Indirect evidence “Haydn Ingenieure heißt Kompetenz für Energieberatung und ganzheitliche Projektentwicklung der kompletten technischen Gebäudeausrüstung.” Source: RevenueBase Database · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 25 | 7 contacts → | ||||
Indirect evidence “Die enertech Energie und Technik GmbH ist ein Planungsbüro für Anlagen der thermischen Energieerzeugung und -verteilung.” Source: RevenueBase Database · checked Sep 5, 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: nuclear engineering consulting firms. 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 nuclear engineering consulting firms.
- Partial evidence
- Its own public description names part of nuclear engineering consulting firms, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name nuclear engineering consulting firms. 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 164 nuclear engineering consulting firms based in Germany
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Nuclear engineering consulting firms based in Germany at a glance
As of Sep 5, 2026Companies by employee count
Freshness & accuracy
How recently the business emails on this list were verified
Email last verified
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 nuclear engineering consulting firms, 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 “nuclear engineering consulting firms”. 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 nuclear engineering consulting firms), 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 nuclear engineering consulting firms, 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, 515 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 5, 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 nuclear engineering consulting firms, 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 nuclear engineering consulting firms are there based in Germany?
RevenueBase identified 164 nuclear engineering consulting firms 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?
INP Deutschland Gmbh, headquartered in Romerberg, tops this list with the largest team on record.
Which city has the most nuclear engineering consulting firms?
Berlin leads with 14 headquartered companies, followed by Hamburg (6) and Munchen (4).
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 515 verified decision-maker contacts tracked across these 164 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 5, 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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