Company lists · Data refreshed September 2026
Top 25 Green building consulting companies based in Hamburg, Germany
RevenueBase identified 74 green building consulting companies headquartered in Hamburg, Germany as of September 2026 and tracks 523 professional contacts across them, including 203 with verified work emails. Berlin is the largest hub.
This list covers green building consulting companies 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 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.
The 25 largest green building consulting companies based in Hamburg, Germany
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 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 16, 2026Thanks. The Data Team will review it. | |||||
| 2 | 38 contacts → | ||||
Indirect evidence “Seit mehr als 65 Jahren sind wir als Ingenieurbüro für technische Gebäudeausrüstung ein verlässlicher Partner.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 3 | 29 contacts → | ||||
Indirect evidence “RENEWA ist dein unabhängiger Partner für energetische Sanierung.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 4 | 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 16, 2026Thanks. The Data Team will review it. | |||||
| 5 | 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 16, 2026Thanks. The Data Team will review it. | |||||
| 6 | 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 16, 2026Thanks. The Data Team will review it. | |||||
| 7 | 12 contacts → | ||||
Indirect evidence “Die Planungsgesellschaft Langos entstand aus dem Architekturbüro Jan Langos und kann mittlerweile auf eine Erfahrung von mehr als 30 Jahren zurückgreifen.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 8 | 10 contacts → | ||||
Indirect evidence “Architecture & Planning” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 9 | 9 contacts → | ||||
Indirect evidence “We operate as a service company in the field of construction IT and accompany construction projects in Germany in their sustainability goals of a climate-neutral construction…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 10 | 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 16, 2026Thanks. The Data Team will review it. | |||||
| 11 | 6 contacts → | ||||
Indirect evidence “Herzlich Willkommen beim Ingenieurbüro CSG Consult GmbH!” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 12 | 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 16, 2026Thanks. The Data Team will review it. | |||||
| 13 | 4 contacts → | ||||
Indirect evidence “Wir sind beratend und planen tätig im Bereich- Tragwerksplanung - Wärmeschutz für Wohn- und Nichtwohn-Gebäude (DIN V 18599)- Schallschutz - Hamburger Energiepass - Ausschreibung…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 14 | 3 contacts → | ||||
Indirect evidence “Wir entwickeln innovative und nachhaltige Konzepte für Ihre individuellen Gebäude, Liegenschaften und gesamte Unternehmen auf dem Weg zur Energie- und Bauwende - und setzen diese…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 15 | 3 contacts → | ||||
Partial evidence “GREENFROMWITHIN GmbH ist eine Beratungsagentur für Green Change.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 16 | 3 contacts → | ||||
Indirect evidence “Entwurfsplanung Ausführungsplanung Schnittstellenkoordination Energieberatung Koordination für Sicherheits- und Gesundheistsschutz Arbeit als Sachverständige” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 17 | 3 contacts → | ||||
Indirect evidence “Als Architekturbüro entwickeln wir gemeinsam mit privaten, gewerblichen und institutionellen Bauherren Lösungen, die gestalterisch, funktional und wirtschaftlich überzeugen – und…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 18 | 3 contacts → | ||||
Indirect evidence “Nachhaltige Lösungen für Immobilienbesitzer, Hausverwaltungen und Investoren Unsere Leistungen sind speziell darauf ausgelegt, Ihre Immobilie zukunftssicher und effizient zu…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 19 | 3 contacts → | ||||
Indirect evidence “Wir freuen uns, dass Sie sich für unsere Dienstleistungen interessieren.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 20 | 3 contacts → | ||||
Indirect evidence “Eine ordentliche Hamburger Brise frischer Energie und Denkweisen in der Architektur.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 21 | 2 contacts → | ||||
Indirect evidence “Das Erreichen von Nachhaltigkeitszielen steht heute mehr im Fokus denn je.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 22 | 2 contacts → | ||||
Indirect evidence “Die Dekarbonisierung des Immobilienbestands ist eine der wesentlichen Herausforderungen in den kommenden 20 Jahren.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 23 | 2 contacts → | ||||
Indirect evidence “HWT Handwerksteam GmbH is a construction company based out of 415 Fuhlsbüttler Str, Hamburg, Germany.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 24 | 1 contacts → | ||||
Indirect evidence “SPARKING IMPACT, DRIVING TRANSFORMATION.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 25 | 1 contacts → | ||||
Partial evidence “Cambria Consulting is a sustainability consultancy that supports you in combining sustainable knowledge with entrepreneurial action.” Source: RevenueBase Database · checked Sep 16, 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: green building consulting companies. 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 green building consulting companies.
- Partial evidence
- Its own public description names part of green building consulting companies, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name green building consulting companies. 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 74 green building consulting companies based in Hamburg, Germany
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Green building consulting companies based in Hamburg, Germany at a glance
As of Sep 16, 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 74 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 green building consulting 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 Hamburg, Germany whose own description of what they do matches “green building consulting 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 green building consulting 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 green building consulting companies, 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, 203 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.
Green building consulting companies by metro in Germany
- Green building consulting companies in Berlin126
- Green building consulting companies in Hamburg74
- Green building consulting companies in Stuttgart50
- Green building consulting companies in Munchen49
- Green building consulting companies in Dusseldorf31
- Green building consulting companies in Koln25
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 green building consulting 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 green building consulting companies are there based in Hamburg, Germany?
RevenueBase identified 74 green building consulting companies 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?
Averdung Ingenieure & Berater Gmbh, headquartered in Hamburg, tops this list with the largest team on record.
Which city has the most green building consulting companies?
Berlin leads with 126 headquartered companies, followed by Hamburg (74) and Stuttgart (50).
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 203 verified decision-maker contacts tracked across these 74 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.
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