Company lists · Data refreshed September 2026

Top 12 Nuclear decommissioning software companies based in Germany

RevenueBase identified 28 nuclear decommissioning software companies headquartered in Germany as of September 2026 and tracks 801 professional contacts across them, including 391 with verified work emails and 7 with mobile numbers. Worms is the largest hub.

This list covers nuclear decommissioning software 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, how directly it supports the match, 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 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 HQ checked on every row Match evidence on every row Refreshed Sep 5, 2026 86% judged on-target in blind review
28Companies
801Contacts tracked
391Verified emails
7Mobile numbers
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The 12 largest nuclear decommissioning software companies based in Germany

Ranked by team size
Top 12 of 28 nuclear decommissioning software companies based in Germany, ranked by team size, largest first. Data refreshed Sep 5, 2026. Evidence rates how directly each company's own description names nuclear decommissioning software companies: strong (names it), partial (names part of it), indirect (matched on its full profile rather than the summary shown). Click a count to unlock that company's people.
#CompanyHeadquartersEmployeesContacts
1Essen, GermanyHQ checked Sep 5, 2026501-1,000235

“Seit fünf Jahhrzehnten bietet GNS Gesellschaft für Nuklear-Service mbH zuverlässige und effiziente Lösungen zur nuklearen Entsorgung während Betrieb, und Rückbau von…”

Source: company website · checked Sep 5, 2026
2
PreussenelektraIndirect evidence
Hannover, GermanyHQ checked Sep 5, 20261,001-5,000208

“Wir sind PreussenElektra, ein Teil des E.ON-Konzerns, und verantworten den Rückbau von acht Kernkraftwerken in Deutschland.”

Source: company website · checked Sep 5, 2026
3Eggenstein-leopoldshafen, GermanyHQ checked Sep 5, 2026501-1,000100

“Die Kerntechnische Entsorgung Karlsruhe GmbH, kurz KTE, baut im Auftrag der öffentlichen Hand die stillgelegten technischen Versuchs und Prototypanlagen am KIT Campus Nord zurück.”

Source: company website · checked Sep 5, 2026
4Karlstein Am Main, GermanyHQ checked Sep 5, 202651-20064

“Our primary business areas include management of radioactive and hazardous waste, decommissioning of nuclear facilities as well as engineering and consulting services.”

Source: company website · checked Sep 5, 2026
5Jülich, GermanyHQ checked Sep 5, 2026201-50050

“Die JEN Jülicher Entsorgungsgesellschaft für Nuklearanlagen mbH vereint die gesamte nukleare Kompetenz, die im Forschungszentrum Jülich und der Arbeitsgemeinschaft Versuchsreaktor…”

Source: company website · checked Sep 5, 2026
6
Nutec GmbhIndirect evidence
Kronberg Im Taunus, GermanyHQ checked Sep 5, 202611-509

“NUTEC wurde im Jahr 2023 von zwei erfahrenen Ingenieuren mit gemeinsam mehr als 30 Jahren Berufserfahrung in der Kerntechnikbranche gegründet.”

Source: company website · checked Sep 5, 2026
7Heidelberg, GermanyHQ checked Sep 5, 202611-508

“GREEN German Reengineering ist das Gegenteil von einem Klassiker, das Gegenteil von einem klassischen Ingenieurbüro.”

Source: company website · checked Sep 5, 2026
8
Studsvik Gmbh & Co. KGIndirect evidence
Gundremmingen, GermanyHQ checked Sep 5, 202611-507
Source: company website · checked Sep 5, 2026
9
Höfer & Bechtel GmbhIndirect evidence
Mainhausen, GermanyHQ checked Sep 5, 202611-506

“Höfer & Bechtel GmbH is a company based out of Mainhausen, Hesse, Germany.”

Source: company website · checked Sep 5, 2026
10Berlin, GermanyHQ checked Sep 5, 202611-505

“Die DSR Ingenieurgesellschaft mbH als Spezial-Ingenieurbüro ist seit mehr als 30 Jahren tätig in den Bereichen: • Entsorgung und Endlagerung radioaktiver Abfälle • Freigabe…”

Source: company website · checked Sep 5, 2026
11
BNS Nuclear Solutions GmbhIndirect evidence
Hamm, GermanyHQ checked Sep 5, 202651-2005

“Wer wir sind: Als verlässlicher Dienstleister und Partner stehen wir unseren Kunden seit 2017 bei jeglichen Einsätzen in kerntechnischen Anlagen zur Verfügung.”

Source: company website · checked Sep 5, 2026
12
Nusec GmbhIndirect evidence
Beverungen, GermanyHQ checked Sep 5, 202611-502

“Dienstleistungen im Bereich Rückbau kerntechnischer Anlagen”

Source: company website · checked Sep 5, 2026

Showing 12 of 28 nuclear decommissioning software companies based in Germany

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Nuclear decommissioning software companies based in Germany at a glance

As of Sep 5, 2026
11-50Median size (employees)
WormsLargest hub · 3 HQs
7Contacts with mobile numbers
Sep 5, 2026Data refreshed

Companies by employee count

1-10
4
11-50
11
51-200
8
201-500
2
501-1,000
2
1,001-5,000
1

Verified emails by last verification

0–30
366
31–60
24
61–90
0
90–180
0
180+
1

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 decommissioning software companies, so some rows will be adjacent to the category rather than pure plays. The description and evidence 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 SmartSearch, 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 decommissioning software companies”. Matching reads each company's description, not its industry code or its name.
What we exclude
Companies whose own description does not clearly place them among nuclear decommissioning software 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 an evidence 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, 391 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

How many nuclear decommissioning software companies are there based in Germany?

RevenueBase identified 28 nuclear decommissioning software 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?

GNS Gesellschaft FÜR Nuklear-Service MBH, headquartered in Essen, tops this list with the largest team on record.

Which city has the most nuclear decommissioning software companies?

Worms leads with 3 headquartered companies, followed by Eggenstein-Leopoldshafen (2) and Gundremmingen (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 391 verified decision-maker contacts tracked across these 28 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 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.