Company lists · Data refreshed September 2026

Top 25 Clean energy consultants based in Germany

RevenueBase identified 1,464 clean energy consultants headquartered in Germany as of September 2026 and tracks 14,416 professional contacts across them, including 5,012 with verified work emails. Berlin is the largest hub.

This list covers clean energy consultants 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
1,464Companies
14,416Contacts tracked
5,012Verified emails
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The 25 largest clean energy consultants based in Germany

Ranked by team size
Top 25 of 1,464 clean energy consultants 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 clean energy consultants: 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 evidenceStuttgart, GermanyHQ checked Sep 16, 20261,001-5,0001,279 contacts →

Strong evidence

“As a leading, independent engineering and consultancy enterprise active in the sectors of energy and infrastructure, Fichtner handles challenging projects in countries all over…”

Source: RevenueBase Database · checked Sep 16, 2026
2Partial evidenceWörrstadt, GermanyHQ checked Sep 16, 20261,001-5,000785 contacts →

Partial evidence

“For 30 years, we have been one of the leading specialists in renewable energies, offering complete project development and other services related to the planning, construction…”

Source: RevenueBase Database · checked Sep 16, 2026
3Indirect evidenceBerlin, GermanyHQ checked Sep 16, 20261,001-5,000702 contacts →

Indirect evidence

“Die PD ist die Beratung / Für die öffentliche Hand von morgen / Seit 2008 beraten wir ausschließlich öffentliche Auftraggeber zu moderner Verwaltungsarbeit und…”

Source: RevenueBase Database · checked Sep 16, 2026
4Partial evidenceDresden, GermanyHQ checked Sep 16, 2026201-500446 contacts →

Partial evidence

“The VSB Group is headquartered in Dresden and is one of the leading full-service providers in the field of renewable energy.”

Source: RevenueBase Database · checked Sep 16, 2026
5Indirect evidenceMunich, GermanyHQ checked Sep 16, 20261,001-5,000415 contacts →

Indirect evidence

“At BayWa r.e.”

Source: RevenueBase Database · checked Sep 16, 2026
6Partial evidenceHamburg, GermanyHQ checked Sep 16, 2026201-500305 contacts →

Partial evidence

ENERPARC AG is an internationally oriented specialist for all business related to photovoltaics, whether it's in a technical or commercial role, pure consultation or…”

Source: RevenueBase Database · checked Sep 16, 2026
7Indirect evidenceMannheim, GermanyHQ checked Sep 16, 2026201-500282 contacts →

Indirect evidence

“GKW Consult GmbH, a company of GFA Group, has developed and implemented projects and advisory services for public and private clients for 70 years in more than 50 countries…”

Source: RevenueBase Database · checked Sep 16, 2026
8Partial evidenceBerlin, GermanyHQ checked Sep 16, 2026201-500269 contacts →

Partial evidence

“adelphi consult is a leading independent consultancy specialising in climate, environment and development.”

Source: RevenueBase Database · checked Sep 16, 2026
9Partial evidenceBochum, GermanyHQ checked Sep 16, 2026501-1,000269 contacts →

Partial evidence

“Von Planung bis Bauüberwachung in großen Infrastruktur-Projekten, von Architektur bis Erneuerbare Energien-ZETCON Ingenieure sind ganz vorne mit dabei in den Bereichen Energie…”

Source: RevenueBase Database · checked Sep 16, 2026
10Indirect evidenceEssen, GermanyHQ checked Sep 16, 202651-200200 contacts →

Indirect evidence

“Dorsch Impact GmbH is an independent and reliable consulting partner for international development cooperation.”

Source: RevenueBase Database · checked Sep 16, 2026
11Partial 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
12Partial evidenceFrankfurt, GermanyHQ checked Sep 16, 202651-200147 contacts →

Partial evidence

“Wir sind ein führender europäischer Energie- und Nachhaltigkeitsberater in der Immobilienwirtschaft.”

Source: RevenueBase Database · checked Sep 16, 2026
13Indirect evidenceFrankfurt, GermanyHQ checked Sep 16, 202651-200137 contacts →

Indirect evidence

“Founded in 1980, IPC builds on a tremendous track record of successfully implemented projects and strong partnerships around the world with development and donor organizations as…”

Source: RevenueBase Database · checked Sep 16, 2026
14Partial evidenceFöhren, GermanyHQ checked Sep 16, 2026201-500134 contacts →

Partial evidence

“Unabhängigkeit & Energiehoheit gewinnen, Kosten selbststimmt steuern: Schoenergie entwickelt, plant, baut und betreibt nachhaltige Energielösungen für Menschen, Unternehmen und…”

Source: RevenueBase Database · checked Sep 16, 2026
15Indirect evidenceFrankfurt/ Main, GermanyHQ checked Sep 16, 202611-50114 contacts →

Indirect evidence

“INTEGRATION is a consulting organization specialising in project management, with focus on developing countries and emerging markets.”

Source: RevenueBase Database · checked Sep 16, 2026
16Partial evidenceAachen, GermanyHQ checked Sep 16, 202651-200112 contacts →

Partial evidence

“As pioneers and experts, BET shapes the energy landscape of tomorrow.”

Source: RevenueBase Database · checked Sep 16, 2026
17Indirect evidenceFreiburg, GermanyHQ checked Sep 16, 202651-20099 contacts →

Indirect evidence

“Unique is a leading consulting firm for sustainable forestry and agriculture, rural development and natural resource management.”

Source: RevenueBase Database · checked Sep 16, 2026
18Partial evidenceMannheim, GermanyHQ checked Sep 16, 2026201-50092 contacts →

Partial evidence

“MVV Enamic bietet als B2B-Lösungseinheit der MVV Energie AG Geschäftskunden ganzheitliche Energielösungen aus einer Hand.”

Source: RevenueBase Database · checked Sep 16, 2026
19Partial evidenceBerlin, GermanyHQ checked Sep 16, 202651-20089 contacts →

Partial evidence

“ENLITE ist der umsetzungsstärkste Berater und Begleiter für Führungskräfte der Energiewirtschaft.”

Source: RevenueBase Database · checked Sep 16, 2026
20Indirect evidenceHamburg, GermanyHQ checked Sep 16, 202651-20088 contacts →

Indirect evidence

“KODIAK's SERVICES: PROJECT DEVELOPMENT ADVISORY - Project development and strategic planning - Market advisory - Advisory in technology and location - Project governance and…”

Source: RevenueBase Database · checked Sep 16, 2026
21Partial evidenceBerlin, GermanyHQ checked Sep 16, 202651-20082 contacts →

Partial evidence

“Die BLS Energieplan GmbH wurde 1984 gegründet und hat ihr Portfolio an Ingenieurdienstleistungen seither kontinuierlich erweitert.”

Source: RevenueBase Database · checked Sep 16, 2026
22Strong evidenceDüsseldorf, GermanyHQ checked Sep 16, 202651-20081 contacts →

Strong evidence

“Pure Energy is a private clean-tech organization focusing on commercial optimization of renewable & BESS assets, energy trading, origination, and "hands-on" advisory services.”

Source: RevenueBase Database · checked Sep 16, 2026
23Indirect 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
24Partial evidenceBad Vilbel, GermanyHQ checked Sep 16, 202651-20079 contacts →

Partial evidence

“With 25 years of experience, First Climate is a leading global provider of carbon management and green energy services for hundreds of corporate and public sector clients.”

Source: RevenueBase Database · checked Sep 16, 2026
25Indirect evidenceLeipzig, GermanyHQ checked Sep 16, 202651-20078 contacts →

Indirect evidence

“Tilia is a French German services, co-development and consulting firm founded in 2009 by people with broad international experience and a common vision of the future of utilities…”

Source: RevenueBase Database · checked Sep 16, 2026

Showing 25 of 1,464 clean energy consultants based in Germany

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Clean energy consultants based in Germany at a glance

As of Sep 16, 2026
34.8%Verified-email coverage
9.8Average contacts per company
1-10Median size (employees)
8.5%Largest-city concentration · Berlin
Sep 16, 2026Page data refreshed

Companies by employee count

1-10
904
11-50
395
51-200
102
201-500
14
501-1,000
5
1,001-5,000
6
5,001-10,000
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 1,464 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 clean energy consultants, 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 “clean energy consultants”. 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 clean energy consultants), 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 clean energy consultants, 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, 5,012 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.

Clean energy consultants 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 clean energy consultants, 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 clean energy consultants are there based in Germany?

RevenueBase identified 1,464 clean energy consultants 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?

Fichtner, headquartered in Stuttgart, tops this list with the largest team on record.

Which city has the most clean energy consultants?

Berlin leads with 125 headquartered companies, followed by Hamburg (80) and Munchen (39).

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 5,012 verified decision-maker contacts tracked across these 1,464 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.