Company lists · Data refreshed September 2026

Top 25 Circular economy consulting for energy based in Germany

RevenueBase identified 773 circular economy consulting for energy headquartered in Germany as of September 2026 and tracks 4,763 professional contacts across them, including 1,880 with verified work emails. Berlin is the largest hub.

This list covers circular economy consulting for energy 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.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 16, 2026 86% judged on-target in blind review
773Companies
4,763Contacts tracked
1,880Verified emails
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The 25 largest circular economy consulting for energy based in Germany

Ranked by team size
Top 25 of 773 circular economy consulting for energy based in Germany, ranked by team size, largest first. Data refreshed Sep 16, 2026. RevenueBase Smart Search rates how each company's information relates to circular economy consulting for energy: 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
1Strong evidenceKoeln, GermanyHQ checked Sep 16, 20261,001-5,000439 contacts →

Strong evidence

“Enabling the circular economy.”

Source: RevenueBase Database · checked Sep 16, 2026
2Partial evidenceMünster, GermanyHQ checked Sep 16, 2026201-500152 contacts →

Partial evidence

“Wir erschaffen Zukunft – mit erneuerbaren Energien und innovativen Lösungen!”

Source: RevenueBase Database · checked Sep 16, 2026
3Strong evidenceStuttgart, GermanyHQ checked Sep 16, 202651-20089 contacts →

Strong evidence

“Transformation, strategy, management and economics – FMC advises companies and investors in the energy and water industry and related sectors.”

Source: RevenueBase Database · checked Sep 16, 2026
4Indirect evidenceStuttgart, GermanyHQ checked Sep 16, 202651-20079 contacts →

Indirect evidence

“Herausforderungen von Heute als Chancen für Morgen nutzen.”

Source: RevenueBase Database · checked Sep 16, 2026
5Partial evidenceBerlin, GermanyHQ checked Sep 16, 202651-20071 contacts →

Partial evidence

enervis is a specialized management consultancy for the energy industry.”

Source: RevenueBase Database · checked Sep 16, 2026
6Indirect evidenceBerlin, GermanyHQ checked Sep 16, 202651-20069 contacts →

Indirect evidence

“B.A.U.M.”

Source: RevenueBase Database · checked Sep 16, 2026
7Partial evidenceLeipzig, GermanyHQ checked Sep 16, 202651-20067 contacts →

Partial evidence

“Nur durch gemeinsames Handeln lässt sich die Energiewende realisieren.”

Source: RevenueBase Database · checked Sep 16, 2026
8Partial evidenceMannheim, GermanyHQ checked Sep 16, 202651-20057 contacts →

Partial evidence

“Das BFE Institut für Energie und Umwelt GmbH ist ein Unternehmen der MVV Energie AG und zählt mit über Projekten und ca.”

Source: RevenueBase Database · checked Sep 16, 2026
9Partial evidenceBerlin, GermanyHQ checked Sep 16, 202651-20047 contacts →

Partial evidence

“inno2grid - Der Partner für Ihren Erfolg in der Energie- und Mobilitätswelt von morgen inno2grid ist eine Beratungs- und Innovationsplattform für nachhaltige Energie, Mobilität…”

Source: RevenueBase Database · checked Sep 16, 2026
10Partial evidenceHolzgerlingen, GermanyHQ checked Sep 16, 202651-20047 contacts →

Partial evidence

“Less waste – more impact: circularity that creates value.”

Source: RevenueBase Database · checked Sep 16, 2026
11Partial evidenceBerlin, GermanyHQ checked Sep 16, 202651-20046 contacts →

Partial evidence

“Since its founding 20 years ago, ÖKOTEC stands for intelligent solutions for the reduction of energy and resource consumption.”

Source: RevenueBase Database · checked Sep 16, 2026
12Partial evidenceBerlin-mitte, GermanyHQ checked Sep 16, 202611-5044 contacts →

Partial evidence

“Als strategische Unternehmensberatung mit Sitz in Berlin begleiten wir Unternehmen, Kommunen und die Energiewirtschaft insbesondere Management, Entscheider und Projektleiter bei…”

Source: RevenueBase Database · checked Sep 16, 2026
13Partial evidenceBerlin, GermanyHQ checked Sep 16, 202651-20044 contacts →

Partial evidence

“Concular is a holistic ecosystem for circular construction.”

Source: RevenueBase Database · checked Sep 16, 2026
14Indirect evidenceGriesheim, GermanyHQ checked Sep 16, 202651-20042 contacts →

Indirect evidence

“IT- & Prozessberatung für die einem Wohnzimmer in die weite Welt der IT-Beratung!** Seit unserer Gründung im Jahr im Wohnzimmer des Gründungsvorstands Dr.”

Source: RevenueBase Database · checked Sep 16, 2026
15Partial evidenceHanover, GermanyHQ checked Sep 16, 202651-20041 contacts →

Partial evidence

“CRATOS is more than a consulting firm.”

Source: RevenueBase Database · checked Sep 16, 2026
16Partial evidenceHamburg, GermanyHQ checked Sep 16, 202651-20041 contacts →

Partial evidence

“Als Problemlöser und Beschleuniger für die Energiewende leisten wir unseren Beitrag als kreativer und kompetenter Partner.”

Source: RevenueBase Database · checked Sep 16, 2026
17Strong evidenceHamburg, GermanyHQ checked Sep 16, 202611-5040 contacts →

Strong evidence

“We are the global design and innovation firm for a Circular Economy.”

Source: RevenueBase Database · checked Sep 16, 2026
18Partial evidenceBonn, GermanyHQ checked Sep 16, 202611-5038 contacts →

Partial evidence

“Wir sind Spezialisten in der Elektrizitäts- und Gaswirtschaft E-Bridge ist eine Unternehmensberatung mit Kompetenz in Energie und unterstützt bei komplexen, strategisch…”

Source: RevenueBase Database · checked Sep 16, 2026
19Strong evidenceGelsenkirchen, GermanyHQ checked Sep 16, 202651-20036 contacts →

Strong evidence

“Since 1996 the EE ENERGY ENGINEERS GmbH provides consulting services for an innovative and climate-friendly future energy supply.”

Source: RevenueBase Database · checked Sep 16, 2026
20Strong evidenceCologne, GermanyHQ checked Sep 16, 202651-20034 contacts →

Strong evidence

“Noventiz is a specialist brand by Reconomy, an international circular economy specialist that combines technology, skills and incredible people to build sustainability ‘Loops’…”

Source: RevenueBase Database · checked Sep 16, 2026
21Partial evidenceStuttgart, GermanyHQ checked Sep 16, 202611-5031 contacts →

Partial evidence

“VCG.AI is the intelligence platform for renewable and circular chemicals, materials and fuels.”

Source: RevenueBase Database · checked Sep 16, 2026
22Strong evidenceHamburg, GermanyHQ checked Sep 16, 202651-20029 contacts →

Strong evidence

“Since more than 45 years we have been supporting as a leading consulting and planning office customers primarily from the energy sector.”

Source: RevenueBase Database · checked Sep 16, 2026
23Partial evidencePfaffenhofen An Der Ilm, GermanyHQ checked Sep 16, 202611-5029 contacts →

Partial evidence

“eta Energieberatung ist mehr als ein Ingenieurbüro.”

Source: RevenueBase Database · checked Sep 16, 2026
24Partial evidenceHamburg, GermanyHQ checked Sep 16, 202611-5028 contacts →

Partial evidence

“Das Hamburg Institut ist eine Strategieberatung für eine erfolgreiche Energiewende.”

Source: RevenueBase Database · checked Sep 16, 2026
25Partial evidenceFreiburg, GermanyHQ checked Sep 16, 202651-20028 contacts →

Partial evidence

“endura kommunal GmbH ist ein Beratungsunternehmen für Kommunen und Stadtwerke, die die Energiezukunft selbst gestalten und erneuerbare Projekte realisieren wollen.”

Source: RevenueBase Database · checked Sep 16, 2026

Showing 25 of 773 circular economy consulting for energy based in Germany

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Circular economy consulting for energy based in Germany at a glance

As of Sep 16, 2026
39.5%Verified-email coverage
6.2Average contacts per company
1-10Median size (employees)
11.5%Largest-city concentration · Berlin
Sep 16, 2026Page data refreshed

Companies by employee count

1-10
535
11-50
178
51-200
35
201-500
4
1,001-5,000
5

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 773 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 circular economy consulting for energy, 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 “circular economy consulting for energy”. 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 circular economy consulting for energy), 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 circular economy consulting for energy, 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, 1,880 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.

Circular economy consulting for energy by metro

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 circular economy consulting for energy, 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 circular economy consulting for energy are there based in Germany?

RevenueBase identified 773 circular economy consulting for energy 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?

Interzero, headquartered in Koeln, tops this list with the largest team on record.

Which city has the most circular economy consulting for energy?

Berlin leads with 89 headquartered companies, followed by Hamburg (47) and Munchen (28).

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 1,880 verified decision-maker contacts tracked across these 773 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.