Company lists · Data refreshed September 2026
Top 25 Emissions management consulting firms based in Hamburg, Germany
RevenueBase identified 60 emissions management consulting firms headquartered in Hamburg, Germany as of September 2026 and tracks 552 professional contacts across them, including 290 with verified work emails. Across Germany, Berlin is the largest hub for this category (70 companies); Hamburg follows with 60.
This list covers emissions management consulting firms headquartered in Hamburg, 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 28, 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 emissions management consulting firms based in Hamburg, Germany
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 137 contacts → | ||||
Indirect evidence “With nearly 80 years of expertise, DURAG GROUP is an international technology leader dedicated to supporting cleaner, safer, and more efficient industrial operations.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 2 | 58 contacts → | ||||
Indirect evidence “We want to decarbonize the global freight industry by building the data backbone for sustainable supply chains.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 3 | 47 contacts → | ||||
Partial evidence “As a management consultancy we have been tackling global challenges in environmental and human rights issues for over 20 years.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 4 | 41 contacts → | ||||
Indirect evidence “Als Problemlöser und Beschleuniger für die Energiewende leisten wir unseren Beitrag als kreativer und kompetenter Partner.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 5 | 23 contacts → | ||||
Indirect evidence “WIR SIND TEAM IBAK Seit gut 13 Jahren treiben wir mit Können und großer Begeisterung die Nachhaltigkeit im Bauwesen voran.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 6 | 18 contacts → | ||||
Partial evidence “Consulting businesses on Energy Efficiency and Renewable Energy UN Sustainable Development Goals and International Cooperation Envidatec offers consulting services on all things…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 7 | 17 contacts → | ||||
Indirect evidence “Unser Leistungsspektrum folgt einem ganzheitlichen Ansatz und vereint das Beste aus drei Welten: strategisch, greifbar und kommunizierbar.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 8 | 16 contacts → | ||||
Indirect evidence “CBR Sustainability Partners is a pioneering consultancy dedicated to advancing green transition through technological innovation and sustainable practices across various…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 9 | 15 contacts → | ||||
Indirect evidence “Gesellschaftlicher Wandel verlangt nach transformativen Unternehmen mit großem Innovationspotenzial, starker Kundenorientierung und der Fähigkeit zur effizienten Bereitstellung…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 10 | 14 contacts → | ||||
Strong evidence “Die E1 Management Consulting GmbH mit Sitz in Hamburg ist eine auf die Energiewirtschaft spezialisierte deutsche Unternehmensberatung.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 11 | 9 contacts → | ||||
Partial evidence “Swiss Climate Germany verifies and certifies your IMO DCS and EU MRV emission reports with the team in Hamburg, Germany.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 12 | 8 contacts → | ||||
Indirect evidence “We are S&Z – Schlange, Zamostny & Co.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 13 | 7 contacts → | ||||
Indirect evidence “MORGENWELT GmbH | Nachhaltige Event- & Beratungsagentur Wir beweisen, dass Nachhaltigkeit und Event-Highlights kein Widerspruch sind.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 14 | 7 contacts → | ||||
Indirect evidence “Klima Kontor - Atmosphäre schaffen Über uns: Klima Kontor ist ein führendes Architektur- und Ingenieurbüro, das sich auf nachhaltige und energieeffiziente Lösungen spezialisiert…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 15 | 6 contacts → | ||||
Partial evidence “Die Five Glaciers Consulting GmbH mit Sitz in Hamburg macht Nachhaltigkeit zum Schlüssel für langfristigen Unternehmenserfolg deutscher Mittelständler.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 16 | 6 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 17 | 5 contacts → | ||||
Indirect evidence “Elbe Energie GmbH Energietechnik Energiehandel is a company based out of 14 Grimm, Hamburg, Germany.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 18 | 5 contacts → | ||||
Indirect evidence “We are convinced by the principles of sustainability!” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 19 | 4 contacts → | ||||
Indirect evidence “Wir sind ein unabhängiges und bundesweit tätiges Beratungsunternehmen, welches sich in 2006 aus einem Team von langjährig erfahrenen Mitarbeitern gegründet hat.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 20 | 4 contacts → | ||||
Strong evidence “AQ Green TeC is a provider of high-quality emissions management, offering a comprehensive range of effective climate strategies for the B2C and B2B markets, from CO2e footprint…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 21 | 4 contacts → | ||||
Indirect evidence “Sie beherrschen das Feuer!” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 22 | 3 contacts → | ||||
Indirect evidence “GREENFROMWITHIN GmbH ist eine Beratungsagentur für Green Change.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 23 | 2 contacts → | ||||
Partial evidence “we provide customised carbon management & compensation solutions to help organisations achieve their sustainability objectives.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 24 | 2 contacts → | ||||
Indirect evidence “Die Dekarbonisierung des Immobilienbestands ist eine der wesentlichen Herausforderungen in den kommenden 20 Jahren.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 25 | 2 contacts → | ||||
Indirect evidence “Ihr erfahrener Begleiter zur Klimaneutralität -” Source: RevenueBase Database · checked Sep 28, 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: emissions management 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 emissions management consulting firms.
- Partial evidence
- Its own public description names part of emissions management consulting firms, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name emissions management 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 60 emissions management consulting firms based in Hamburg, Germany
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Emissions management consulting firms based in Hamburg, Germany at a glance
As of Sep 28, 2026Companies by employee count
Email recency for this list is measured across the whole Germany list rather than for Hamburg, so it is reported there. Company counts and contact totals on this page are exact for Hamburg, over 60 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 emissions management 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 Hamburg, Germany whose own description of what they do matches “emissions management 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 emissions management 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 emissions management consulting firms, and records with no verified work email. Companies headquartered outside Hamburg 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, 290 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 28, 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.
Emissions management consulting firms by metro in Germany
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 emissions management 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 emissions management consulting firms are there based in Hamburg, Germany?
RevenueBase identified 60 emissions management consulting firms headquartered in Hamburg, 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?
Durag Group, headquartered in Hamburg, tops this list with the largest team on record.
Which city in Germany has the most emissions management consulting firms?
Berlin leads Germany with 70 headquartered companies, followed by Hamburg (60) and Munchen (27).
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 290 verified decision-maker contacts tracked across these 60 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 28, 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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