Company lists · Data refreshed September 2026
Top 25 Grid integration system designers based in Germany
RevenueBase identified 996 grid integration system designers headquartered in Germany as of September 2026 and tracks 12,278 professional contacts across them, including 4,406 with verified work emails. Berlin is the largest hub.
This list covers grid integration system designers 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 19, 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 grid integration system designers based in Germany
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 894 contacts → | ||||
Partial evidence “The Fraunhofer Institute for Solar Energy Systems ISE in Freiburg, Germany is the largest solar research institute in Europe.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 2 | 785 contacts → | ||||
Indirect 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 19, 2026Thanks. The Data Team will review it. | |||||
| 3 | 492 contacts → | ||||
Indirect evidence “ENERTRAG provides a full range of services related to renewable energies.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 4 | 415 contacts → | ||||
Indirect evidence “At BayWa r.e.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 5 | 395 contacts → | ||||
Indirect evidence “Iqony makes green energy feasible.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 6 | 336 contacts → | ||||
Partial evidence “GOLDBECK SOLAR is an internationally leading company specializing in the turnkey construction of industrial, commercial, and large‑scale photovoltaic systems.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 7 | 334 contacts → | ||||
Indirect evidence “Mit über installierten Anlagen und einem umfassenden Netzwerk aus Fachkräften sorgen wir jedes Jahr für circa 70 Millionen € Stromersparnis bei unseren Kundinnen und Kunden.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 8 | 305 contacts → | ||||
Indirect 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 19, 2026Thanks. The Data Team will review it. | |||||
| 9 | 216 contacts → | ||||
Indirect evidence “FGH was founded in 1921.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 10 | 210 contacts → | ||||
Indirect evidence “MaxSolar is a leading provider of integrated, innovative energy solutions for companies and municipalities.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 11 | 189 contacts → | ||||
Indirect evidence “About us We have been active in the renewable energy market since 1997.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 12 | 162 contacts → | ||||
Indirect evidence “Mit Premium-Photovoltaikanlagen und Wärmepumpen im Komplettpaket erleichtern wir seit 2010 Privat- und Gewerbekunden bundesweit den Umstieg auf eine unabhängige, nachhaltige…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 13 | 152 contacts → | ||||
Indirect evidence “Wir erschaffen Zukunft – mit erneuerbaren Energien und innovativen Lösungen!” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 14 | 142 contacts → | ||||
Indirect evidence “STEAG Energy Services GmbH (SES) is one of the world’s leading service providers for power assets: we offer German minded engineering for more than MW of installed capacity in a…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 15 | 136 contacts → | ||||
Partial evidence “Enter ist ein bundesweit tätiger Anbieter von Wärmepumpen, Solaranlagen (Photovoltaik) mit Stromspeicher, Wallboxen und Energiemanagement-Systemen für Eigenheimbesitzer in…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 16 | 134 contacts → | ||||
Indirect evidence “Unabhängigkeit & Energiehoheit gewinnen, Kosten selbststimmt steuern: Schoenergie entwickelt, plant, baut und betreibt nachhaltige Energielösungen für Menschen, Unternehmen und…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 17 | 132 contacts → | ||||
Indirect evidence “Since 2017, ENVIRIA develops comprehensive, integrated energy solutions for commercial and industrial clients.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 18 | 102 contacts → | ||||
Indirect evidence “power for energy SMA Altenso GmbH is a wholly owned subsidiary of SMA Solar Technology AG.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 19 | 91 contacts → | ||||
Indirect evidence “Natur ist unsere Energie.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 20 | 85 contacts → | ||||
Indirect evidence “Als Spezialisiten der Elektrotechnik liefern wir individuelle Lösungen auf allen Stromnetzebenen - von Beratung und Engineering über Fertigung zu Service vor Ort.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 21 | 82 contacts → | ||||
Indirect evidence “Die BLS Energieplan GmbH wurde 1984 gegründet und hat ihr Portfolio an Ingenieurdienstleistungen seither kontinuierlich erweitert.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 22 | 73 contacts → | ||||
Indirect evidence “Wir bringen grüne Infrastruktur in Ihre Gebäude!” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 23 | 68 contacts → | ||||
Indirect evidence “beegy ist ein innovativer Anbieter ganzheitlicher Energielösungen und eine 100-prozentige Tochter der MVV Energie AG.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 24 | 66 contacts → | ||||
Indirect evidence “Innovative solar solutions for the sustainable future of your company.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 25 | 58 contacts → | ||||
Indirect evidence “Assmann Emutec ist ein Unternehmen des BKW Engineering - Network of Excellence® – dem größten Engineering Netzwerk im deutschsprachigen Raum.” Source: RevenueBase Database · checked Sep 19, 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: grid integration system designers. 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 grid integration system designers.
- Partial evidence
- Its own public description names part of grid integration system designers, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name grid integration system designers. 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 996 grid integration system designers based in Germany
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Grid integration system designers based in Germany at a glance
As of Sep 19, 2026Companies by employee count
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 996 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 grid integration system designers, 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 “grid integration system designers”. 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 grid integration system designers), 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 grid integration system designers, 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, 4,406 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 19, 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.
Grid integration system designers by metro
- Grid integration system designers in Berlin79
- Grid integration system designers in Hamburg33
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 grid integration system designers, 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 grid integration system designers are there based in Germany?
RevenueBase identified 996 grid integration system designers 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?
Fraunhofer-Institut FÜR Solare Energiesysteme ISE, headquartered in Freiburg, tops this list with the largest team on record.
Which city has the most grid integration system designers?
Berlin leads with 79 headquartered companies, followed by Hamburg (33) and Munich (17).
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 4,406 verified decision-maker contacts tracked across these 996 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 19, 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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