Company lists · Data refreshed November 2026

Top 25 Solar installation defect management companies based in Germany

RevenueBase identified 143 company matches for solar installation defect management companies associated with Germany as of November 2026 and tracks 496 professional contacts across them, including 94 with verified work emails. Berlin is the largest hub.

This list covers company matches for solar installation defect management companies associated with 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 November 6, 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 Nov 6, 2026 How this list was built
143Companies
496Contacts tracked
94Verified emails
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The 25 largest solar installation defect management companies based in Germany

Ranked by team size
Top 25 of 143 company matches for solar installation defect management companies based in Germany, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 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.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchSpeyer, GermanyHQ recorded Nov 6, 202651-20028 contacts →

Exact match

“Strom ist die Energieform der Zukunft - Ihre Photovoltaikanlage von soNachhaltig wird sie begeistern!”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchLeun, GermanyHQ recorded Nov 6, 202611-5021 contacts →

Exact match

“ACHE Engineering GmbH is a renewables company based out of Germany.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchNeulußheim, GermanyHQ recorded Nov 6, 202611-5015 contacts →

Exact match

“Energielösungen.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchNeustadt An Der Waldnaab, GermanyHQ recorded Nov 6, 202611-5012 contacts →

Exact match

“Starten Sie jetzt mit uns durch und setzen Sie dem Klimawandel etwas entgegen!”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchWeissach, GermanyHQ recorded Nov 6, 202611-5012 contacts →

Exact match

“revotec energy ist ein führender Anbieter von Solaranlagen in Baden-Württemberg installiert auf Industrie- und Gewerbeimmobilien sowie Gebäuden von Kommunen und Vereinen.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchBurgdorf, GermanyHQ recorded Nov 6, 202651-20011 contacts →

Exact match

“Holen Sie sich die Energiewende direkt nach Hause, in Ihren Betrieb oder auf Ihren landwirtschaftlichen Hof – mit einer persönlich auf Sie zugeschnittenen Photovoltaikanlage.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchEching, GermanyHQ recorded Nov 6, 202651-20011 contacts →

Exact match

“Werden Sie unabhängig von Ihrem Stromanbieter - Mit einer Solaranlage aus unserem familiengeführten Meisterbetrieb- Persönliche Beratung vor Ort - Montag bis Sonntag rund um die…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchBissendorf, GermanyHQ recorded Nov 6, 202611-5010 contacts →

Exact match

“Die Osnatech.solar GmbH aus Bissendorf bei Osnabrück ist seit mehr als 10 Jahren das Team für private und gewerbliche Photovoltaik-Anlagen – mit Expertenwissen im Leichtbau-PV…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchBerlin, GermanyHQ recorded Nov 6, 20261-107 contacts →

Exact match

“Wir sind spezialisiert auf die schlüsselfertige Anlagenerrichtung von Photovoltaik-Aufdachanlagen im privaten und gewerblichen Bereich.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchLauda-königshofen, GermanyHQ recorded Nov 6, 20261-107 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchQuakenbrück, GermanyHQ recorded Nov 6, 20261-107 contacts →

Exact match

“Photovoltaik Berg – Ihre Experten für solare Energie!”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchLastrup, GermanyHQ recorded Nov 6, 202611-506 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchStraßkirchen, GermanyHQ recorded Nov 6, 202611-505 contacts →

Exact match

“Für den effizienten Betrieb Ihrer Photovoltaikanlage ist eine leistungsfähige Betriebsführung mit Vor-Ort-Service die Grundlage für maximale Verfügbarkeit und beste Renditen.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchWeinstadt, GermanyHQ recorded Nov 6, 20261-105 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchRahden, GermanyHQ recorded Nov 6, 202651-2004 contacts →

Exact match

“Im Jahr entschied sich Andre Hilker zum Schritt der Selbstständigkeit.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchBayreuth, GermanyHQ recorded Nov 6, 202611-504 contacts →

Exact match

“Wir sind CALO.SOL, der ganzheitlicher Energiepartner für das Eigenheim.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchRoggentin, GermanyHQ recorded Nov 6, 202611-504 contacts →

Exact match

“Seit unserer Gründung 2012 haben wir uns der Kraft der Sonne verschrieben.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchHamburg, GermanyHQ recorded Nov 6, 20261-104 contacts →

Exact match

“KOGA Energy mit Sitz in Hamburg ist ein dynamisches Solarenergie-Unternehmen und verfügt über eine breites Spektrum an Dienstleistungen.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchDresden, GermanyHQ recorded Nov 6, 20261-104 contacts →

Exact match

“Ampere Solar GmbH is a renewables & environment company based out of 39 Antonstraße, Dresden, Germany.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchHamburg, GermanyHQ recorded Nov 6, 202611-503 contacts →

Exact match

“ad fontes Hamburg is a solar PV and heating installation company based in Hamburg, Germany offering full service solutions for residential and commercial customers.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchVelten, GermanyHQ recorded Nov 6, 202611-503 contacts →

Exact match

“Wir installieren, reparieren und warten Ihre Photovoltaikanlage.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchBerlin, GermanyHQ recorded Nov 6, 202611-502 contacts →

Exact match

“Der Spezialist für Service, Wartung und Monitoring von Photovoltaikanlagen.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchHerrsching A. Ammersee, GermanyHQ recorded Nov 6, 202611-502 contacts →

Exact match

“Wenn Sie eine Photovoltaikanlage auf Ihrem Hausdach planen, Sie einen zuverlässigen und erfahrenen Partner für Service, Reparatur und Wartung Ihrer Anlage brauchen oder weitere…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchBamberg, GermanyHQ recorded Nov 6, 202611-502 contacts →

Exact match

“Solartech Energie: Ihre Partner für maßgeschneiderte Photovoltaik-Lösungen Bei Solartech Energie sind wir Ihr verlässlicher Partner für maßgeschneiderte Photovoltaik-Lösungen.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchHamburg, GermanyHQ recorded Nov 6, 20261-102 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 25 of 143 solar installation defect management companies based in Germany

See the full list, filter by size, metro and specialty, and access 94 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Solar installation defect management companies based in Germany at a glance

As of Nov 6, 2026
19.0%Verified-email coverage
3.5Average contacts per company
1-10Median size (employees)
6.3%Largest-city concentration · Berlin
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
82
11-50
39
51-200
13

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 143 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 Germany whose business descriptions match “solar installation defect management companies” 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 94 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 November 6, 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.

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 “solar installation defect management companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many solar installation defect management companies are there based in Germany?

RevenueBase identified 143 company matches for solar installation defect management companies associated with Germany as of November 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?

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

Which city has the most solar installation defect management companies?

Berlin leads with 9 company records, followed by Hamburg (5) and Munich (3).

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 94 professional contacts with verified work emails tracked across these 143 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 November 6, 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.