Company lists · Data refreshed September 2026

Top 25 Renewable energy IT service providers based in Hamburg, Germany

Name: Renewable energy IT service providers based in Hamburg, Germany
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 148 companies tracked

RevenueBase identified 148 company matches for renewable energy IT service providers associated with Hamburg, Germany as of September 2026 and tracks 3,713 professional contacts across them, including 1,493 with verified work emails. Across Germany, Berlin is the largest hub for this category (212 companies); Hamburg follows with 148.

This list covers company matches for renewable energy IT service providers associated with Hamburg, Germany, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 17, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 RevenueBase SmartSearch · Exact Recorded Sep 17, 2026 How this list was built

148Companies

3,713Contacts tracked

1,493Verified emails

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The 25 largest renewable energy IT service providers based in Hamburg, Germany

Ranked by team size

Top 25 of 148 company matches for renewable energy IT service providers based in Hamburg, Germany, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 17, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	1komma5	Exact match	Hamburg, GermanyHQ recorded Sep 17, 2026	1,001-5,000	897 contacts →
	Exact match “1KOMMA5° wurde gegründet um Millionen Gebäude in Europa klimaneutral immer mit dem günstigsten Strom zu versorgen - ganz ohne fossile Energie.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
2	Lichtblick SE	Exact match	Hamburg, GermanyHQ recorded Sep 17, 2026	501-1,000	449 contacts →
	Exact match “Here at LichtBlick, we create an excellent climate – with green energy for at home and on the move.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
3	Akquinet	Exact match	Hamburg, GermanyHQ recorded Sep 17, 2026	501-1,000	346 contacts →
	Exact match “We help companies set up their IT in a sustainable, secure, and future-proof way-from strategy and implementation to operation.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
4	Enerparc AG	Exact match	Hamburg, GermanyHQ recorded Sep 17, 2026	201-500	305 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
5	Rabot Energy	Exact match	Hamburg, GermanyHQ recorded Sep 17, 2026	51-200	112 contacts →
	Exact match “Der Energieanbieter Rabot Energy macht es für jeden möglich, unkompliziert aktiver Teil der Energiewende zu werden.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
6	Phat Consulting	Exact match	Hamburg, GermanyHQ recorded Sep 17, 2026	51-200	65 contacts →
	Exact match “We are 89 people who rock digitalization and sustainability together.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
7	Akra Gmbh	Exact match	Hamburg, GermanyHQ recorded Sep 17, 2026	51-200	64 contacts →
	Exact match “We support small companies and large corporations in the areas of software development, IT infrastructure and IT project management.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
8	Holisticon AG	Exact match	Hamburg, GermanyHQ recorded Sep 17, 2026	51-200	60 contacts →
	Exact match “Holisticon is the boutique among the IT consultancies for digital transformation.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
9	Fortis It-Services Gmbh	Exact match	Hamburg, GermanyHQ recorded Sep 17, 2026	51-200	44 contacts →
	Exact match “FORTIS ist ein mittelständischer IT-Dienstleister mit Büros in Hamburg, Bielefeld, Wolfsburg, Berlin und Düsseldorf.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
10	DAA Gmbh	Exact match	Hamburg, GermanyHQ recorded Sep 17, 2026	51-200	42 contacts →
	Exact match “Die DAA GmbH bietet Saleslösungen für die Energiewende.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
11	P&m Agentur Software Consulting	Exact match	Hamburg, GermanyHQ recorded Sep 17, 2026	51-200	42 contacts →
	Exact match “In der rasanten digitalen Welt sind Customer Experience, technische Lösungen und intelligente Datennutzung entscheidend für den Geschäftserfolg.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
12	MSP AG	Exact match	Hamburg, GermanyHQ recorded Sep 17, 2026	51-200	41 contacts →
	Exact match “Die MSP AG ist ein Hamburger IT- und Softwareunternehmen mit Expertise in den Bereichen Entwicklung, Systemintegration, Prozessberatung und IT-Service.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
13	Rbomnishore	Exact match	Hamburg, GermanyHQ recorded Sep 17, 2026	51-200	40 contacts →
	Exact match “Wir sind RBOmnishore, IT-Beratung und Entwicklungstreiber für die digitale Zukunft des Handels und der Industrie.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
14	EHA Energie-Handels-Gesellschaft MBH & Co. KG	Exact match	Hamburg, GermanyHQ recorded Sep 17, 2026	51-200	40 contacts →
	Exact match “EHA wurde bereits 1998 als Joint Venture der damaligen Hamburgische Electricitäts-Werke AG (HEW) und der REWE Group gegründet.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
15	Klimainvest Green Concepts Gmbh	Exact match	Hamburg, GermanyHQ recorded Sep 17, 2026	11-50	35 contacts →
	Exact match “Klimalnvest is one of the leading full-service energy and climate protection agencies for municipal utilities and energy suppliers in Germany.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
16	Sunnic Lighthouse Gmbh	Exact match	Hamburg, GermanyHQ recorded Sep 17, 2026	51-200	34 contacts →
	Exact match “Whether for system operators, business customers or trading partners: Sunnic takes care of optimal marketing and supply structures for renewable energies.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
17	Consulectra Gmbh	Exact match	Hamburg, GermanyHQ recorded Sep 17, 2026	51-200	29 contacts →
	Exact match “Since more than 45 years we have been supporting as a leading consulting and planning office customers primarily from the energy sector.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
18	8.2 Obst & Hamm Gmbh	Exact match	Hamburg, GermanyHQ recorded Sep 17, 2026	11-50	29 contacts →
	Exact match “8.2 Obst & Hamm GmbH was founded in 2003 and is part of the 8.2 group which traces back to 1995.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
19	HBT	Exact match	Hamburg, GermanyHQ recorded Sep 17, 2026	51-200	28 contacts →
	Exact match “HBT Hamburger Berater Team is a company based out of STADTHAUSBRÜCKE 3, Hamburg, Germany.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
20	Tuleva AG	Exact match	Hamburg, GermanyHQ recorded Sep 17, 2026	51-200	27 contacts →
	Exact match “Wir können digitale Zukunft!” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
21	Ison Gmbh	Exact match	Hamburg, GermanyHQ recorded Sep 17, 2026	11-50	24 contacts →
	Exact match “With the most advanced Energy as a Service solution, we seamlessly connect our partners and their products to the energy market unlocking the flex potential of decentralized…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
22	Elbe1 Renewable Energy Advisors	Exact match	Hamburg, GermanyHQ recorded Sep 17, 2026	11-50	22 contacts →
	Exact match “As a member of the SeaRenergy group, headquartered in Hamburg, Germany, Elbe1 is a leading consultancy specialized in the development and construction of offshore wind and…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
23	Btdynamics Gmbh	Exact match	Hamburg, GermanyHQ recorded Sep 17, 2026	11-50	20 contacts →
	Exact match “Wir sind immer auf der Suche nach dynamischen und engagierten Mitarbeitern - Jetzt Stellenangebote entdecken: Seit 1993 sind wir in Hamburg Lösungsfinder und persönlicher…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
24	Soft-Park Gmbh	Exact match	Hamburg, GermanyHQ recorded Sep 17, 2026	11-50	19 contacts →
	Exact match “IT with a We.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
25	Green Planet Projects Gmbh	Exact match	Hamburg, GermanyHQ recorded Sep 17, 2026	11-50	18 contacts →
	Exact match “Wir - die Green Planet Projects GmbH (früher: Planet energy GmbH)- sind eine 100%ige Tochter der Green Planet Energy eG, einer der größten Energiegenossenschaften Deutschlands.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “renewable energy IT service providers”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 148 renewable energy IT service providers based in Hamburg, Germany

See the full list, filter by size, metro and specialty, and access 1,493 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Renewable energy IT service providers based in Hamburg, Germany at a glance

As of Sep 17, 2026

40.2%Verified-email coverage

25.1Average contacts per company

11-50Median size (employees)

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

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 148 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies: Company records associated with Hamburg, Germany whose business descriptions match “renewable energy IT service providers” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch: Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview: The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality: RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 1,493 professional contacts with verified work emails across the full matched dataset. 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 17, 2026. Lists refresh periodically as the graph is re-checked.
Record context: Company records and descriptions can change. Check the company's website for its current services and locations.

Renewable energy IT service providers by metro in Germany

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “renewable energy IT service providers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many renewable energy IT service providers are there based in Hamburg, Germany?

RevenueBase identified 148 company matches for renewable energy IT service providers associated with Hamburg, Germany as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

1komma5 tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city in Germany has the most renewable energy IT service providers?

Berlin leads Germany with 212 company records, followed by Hamburg (148) and Munich (118).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 1,493 professional contacts with verified work emails tracked across these 148 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 17, 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 SmartSearch, 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.