Company lists · Data refreshed September 2026

Top 25 Big data in energy sector companies based in Germany

RevenueBase identified 49 big data in energy sector companies headquartered in Germany as of September 2026 and tracks 640 professional contacts across them, including 181 with verified work emails. Berlin is the largest hub.

This list covers big data in energy sector 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 29, 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 29, 2026 86% judged on-target in blind review
49Companies
640Contacts tracked
181Verified emails
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The 25 largest big data in energy sector companies based in Germany

Ranked by team size
Top 25 of 49 big data in energy sector companies based in Germany, ranked by team size, largest first. Data refreshed Sep 29, 2026. RevenueBase Smart Search rates how each company's information relates to big data in energy sector 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 evidenceCologne, GermanyHQ checked Sep 29, 202651-200155 contacts →

Indirect evidence

“envelio - Supporting the smarter, faster evolution of your power grid.”

Source: RevenueBase Database · checked Sep 29, 2026
2Partial evidenceBerlin, GermanyHQ checked Sep 29, 202651-20056 contacts →

Partial evidence

“CO2 emissions in the real estate sector must be reduced quickly.”

Source: RevenueBase Database · checked Sep 29, 2026
3Partial evidenceHamburg, GermanyHQ checked Sep 29, 202611-5039 contacts →

Partial evidence

“encentive helps industrial companies reduce energy costs and CO₂ emissions.”

Source: RevenueBase Database · checked Sep 29, 2026
4Partial evidenceDortmund, GermanyHQ checked Sep 29, 202651-20030 contacts →

Partial evidence

“Energieversorgung der Zukunft beginnt im Niederspannungsnetz Als Lemonbeat sind wir überzeugt: Die Digitalisierung der Energienetze ist der Schlüssel für eine nachhaltige, sichere…”

Source: RevenueBase Database · checked Sep 29, 2026
5Partial evidenceIlmenau, GermanyHQ checked Sep 29, 202611-5029 contacts →

Partial evidence

“ifesca ist ein Softwareunternehmen, das künstliche Intelligenz nutzt, um energieintensive Industrieunternehmen und die Energiewirtschaft bei datenbasierten Entscheidungen zu…”

Source: RevenueBase Database · checked Sep 29, 2026
6Indirect evidenceGarching, GermanyHQ checked Sep 29, 202611-5027 contacts →

Indirect evidence

“Sustainability aspects are an integrated part of our everyday work at OmegaLambdaTec.”

Source: RevenueBase Database · checked Sep 29, 2026
7Partial evidenceMartinsried, GermanyHQ checked Sep 29, 202611-5025 contacts →

Partial evidence

“Ganzheitliche Lösungen für effizientes Energiemanagement – seit über 30 Jahren Die Berg GmbH bietet ganzheitliche Energielösungen aus einer Hand.”

Source: RevenueBase Database · checked Sep 29, 2026
8Partial evidenceBerlin, GermanyHQ checked Sep 29, 202651-20019 contacts →

Partial evidence

“Energie mit KI – Deutschlands führender Partner für energieintensive Unternehmen und komplexe Infrastrukturen.”

Source: RevenueBase Database · checked Sep 29, 2026
9Strong evidenceMünster, GermanyHQ checked Sep 29, 202611-5013 contacts →

Strong evidence

“RIZM minimizes industrial energy costs by combining data from production, energy procurement and infrastructure to enable holistic optimization of energy systems, procurement…”

Source: RevenueBase Database · checked Sep 29, 2026
10Partial evidenceMunich, GermanyHQ checked Sep 29, 20261-1011 contacts →

Partial evidence

“With the cleverwatt Energy Co-Pilot, SMEs can reduce their energy costs easily and sustainably.”

Source: RevenueBase Database · checked Sep 29, 2026
11Partial evidenceStuttgart, GermanyHQ checked Sep 29, 20261-1011 contacts →

Partial evidence

“LEO by Preflet is an agentic AI system for energy and resource management in buildings.”

Source: RevenueBase Database · checked Sep 29, 2026
12Indirect evidenceKleinmachnow, GermanyHQ checked Sep 29, 202611-5011 contacts →

Indirect evidence

“Endlose Watt werden jeden Tag erzeugt und schonungslos verschwendet.”

Source: RevenueBase Database · checked Sep 29, 2026
13Strong evidenceBad Schwartau, GermanyHQ checked Sep 29, 202611-509 contacts →

Strong evidence

“NAECO Blue enables predictive, data-driven energy systems.”

Source: RevenueBase Database · checked Sep 29, 2026
14Indirect evidenceMunich, GermanyHQ checked Sep 29, 202611-508 contacts →

Indirect evidence

“metalogic ist ein Münchner Softwareunternehmen mit über 20 Jahren Erfahrung – ausschließlich fokussiert auf Prognose, Machine Learning und Predictive Analytics für die…”

Source: RevenueBase Database · checked Sep 29, 2026
15Indirect evidenceAachen, GermanyHQ checked Sep 29, 20261-107 contacts →

Indirect evidence

“gridhound ist als Spin-Off des Instituts ACS der RWTH Aachen Universität gegründet worden.”

Source: RevenueBase Database · checked Sep 29, 2026
16Partial evidenceCologne, GermanyHQ checked Sep 29, 20261-107 contacts →

Partial evidence

“Klassische Energiemonitoring-Systeme zeigen Verbräuche, aber sie steuern keine Einsparungen.”

Source: RevenueBase Database · checked Sep 29, 2026
17Partial evidenceBerlin, GermanyHQ checked Sep 29, 202611-506 contacts →

Partial evidence

“powerfox ist das führende Energiemanagementsystem für moderne Energiezähler mit über Installationen im deutschsprachigen Raum.”

Source: RevenueBase Database · checked Sep 29, 2026
18Indirect evidenceBergisch Gladbach, GermanyHQ checked Sep 29, 20261-106 contacts →

Indirect evidence

“Wir sind heatbrAIn.”

Source: RevenueBase Database · checked Sep 29, 2026
19Strong evidenceBerlin, GermanyHQ checked Sep 29, 20261-106 contacts →

Strong evidence

“veer.io is the Global Trust Provider for Energy Data.”

Source: RevenueBase Database · checked Sep 29, 2026
20Partial evidenceKarlsruhe, GermanyHQ checked Sep 29, 20261-104 contacts →

Partial evidence

“Founded in 2020, Reasonance GmbH is an energy-tech company based in Karlsruhe, Germany, specializing in forecasting and optimization for renewables and energy storage.”

Source: RevenueBase Database · checked Sep 29, 2026
21Partial evidencePassau, GermanyHQ checked Sep 29, 20261-104 contacts →

Partial evidence

“Die Energiewende beginnt Zuhause.”

Source: RevenueBase Database · checked Sep 29, 2026
22Partial evidenceFrankfurt, GermanyHQ checked Sep 29, 20261-103 contacts →

Partial evidence

“Unternehmen stehen vor Herausforderungen im Energiemanagement: hohe Energiekosten, komplexe regulatorische Anforderungen von Reporting bis ISO intransparente Emissionen sowie eine…”

Source: RevenueBase Database · checked Sep 29, 2026
23Partial evidenceFlic En Flac, GermanyHQ checked Sep 29, 20261-103 contacts →

Partial evidence

“Energy consumption by buildings and industry is a significant factor in global greenhouse gases.”

Source: RevenueBase Database · checked Sep 29, 2026
24Partial evidenceRoding, GermanyHQ checked Sep 29, 20261-101 contacts →

Partial evidence

“Wir sind die Jostec Systems GmbH – ein junges, hochinnovatives Unternehmen aus Roding, das neue Maßstäbe im Energiemanagement setzt.”

Source: RevenueBase Database · checked Sep 29, 2026
25Partial evidenceRömerberg, GermanyHQ checked Sep 29, 20261-101 contacts →

Partial evidence

“We empower the industry to reduce their energy consumption & peaks with cutting edge AI/IT/IIoT energy monitoring tools.”

Source: RevenueBase Database · checked Sep 29, 2026

Showing 25 of 49 big data in energy sector companies based in Germany

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Big data in energy sector companies based in Germany at a glance

As of Sep 29, 2026
28.3%Verified-email coverage
13.1Average contacts per company
11-50Median size (employees)
16.3%Largest-city concentration · Berlin
Sep 29, 2026Page data refreshed

Companies by employee count

1-10
24
11-50
20
51-200
4
10001+
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 49 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 big data in energy sector 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 “big data in energy sector 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 big data in energy sector 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 big data in energy sector 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, 181 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 29, 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 big data in energy sector 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 big data in energy sector companies are there based in Germany?

RevenueBase identified 49 big data in energy sector 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?

Envelio, headquartered in Cologne, tops this list with the largest team on record.

Which city has the most big data in energy sector companies?

Berlin leads with 8 headquartered companies, followed by Cologne (4) and Munich (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 181 verified decision-maker contacts tracked across these 49 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 29, 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.