Company lists · Data refreshed October 2026
Top 25 Building retrofit companies based in Germany
RevenueBase identified 360 company matches for building retrofit companies associated with Germany as of October 2026 and tracks 1,755 professional contacts across them, including 726 with verified work emails. Hamburg is the largest hub.
This list covers company matches for building retrofit 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 October 9, 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.
The 25 largest building retrofit companies based in Germany
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 402 contacts → | ||||
Exact match “Wir geben bestehenden Gebäuden eine neue Zukunft Vom Mieterausbau über Refurbishment & Revitalisierung bis hin zu maßgeschneiderten ESG-Lösungen realisiert apoprojekt erfolgreich…” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase | |||||
| 2 | 119 contacts → | ||||
Exact match “ecoworks is the trusted partner for the housing sector when it comes to affordable, energy-efficient renovations.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase | |||||
| 3 | 94 contacts → | ||||
Exact match “Gebäude.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase | |||||
| 4 | 73 contacts → | ||||
Exact match “Our roots are Bavarian.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase | |||||
| 5 | 57 contacts → | ||||
Exact match “Ein starker Verbund erstklassiger Baufirmen Die Fischbach Gruppe ist ein eng verbundenes Netzwerk aus Bauunternehmen verschiedener Gewerke mit den Schwerpunkten Modernisierung…” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase | |||||
| 6 | 47 contacts → | ||||
Exact match “In a market full of complexity and empty promises, 42watt makes energy-efficient building modernization simple, reliable, and actionable.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase | |||||
| 7 | 30 contacts → | ||||
Exact match “RENEWA ist dein unabhängiger Partner für energetische Sanierung.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase | |||||
| 8 | 29 contacts → | ||||
Exact match “Das Büro Kai Otto Architekten plant und realisiert moderne und funktionale Bauprojekte für den Forschungs, Pharma- und Gesundheitsbereich genauso wie Bildungs- und Gewerbebauten.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase | |||||
| 9 | 28 contacts → | ||||
Exact match “Unser Unternehmen ist Spezialist und Generalist für Bauvorhaben jeglicher Komplexität.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase | |||||
| 10 | 26 contacts → | ||||
Exact match “sanierungsprofi ist ein Tochterunternehmen der weisenburger-Gruppe und kann dadurch auf jahrelange Erfahrung und Expertise zurückgreifen.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase | |||||
| 11 | 15 contacts → | ||||
Exact match “Berk + Partner Bauingenieure GmbH Ingenieurbüro für Tragwerksplanung Tragwerksplanung Bauen im Bestand Revitalisierung Bestandserkundungen” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase | |||||
| 12 | 15 contacts → | ||||
Exact match “Sie planen die Erweiterung eines Industriebaus?” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase | |||||
| 13 | 15 contacts → | ||||
Exact match “Metabuild supports owners and investors with expert-led engineering services grounded in high-resolution building simulations.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase | |||||
| 14 | 14 contacts → | ||||
Exact match “tga bodensee GmbH ist ein Unternehmen, das die Beratung und Umsetzung von zukunftsweisender Haus- und Energietechnik sowohl für Privat- als auch Gewerbekunden anbietet.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase | |||||
| 15 | 13 contacts → | ||||
Exact match “Gebäude sind unsere Leidenschaft – und das seit mehr als zwei Jahrzehnten.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase | |||||
| 16 | 12 contacts → | ||||
Exact match “MorgenGrün – Innovationen von ZWP Wir wollen vor allem eines: mit der Kraft von Innovationen Gebäude und Liegenschaften so gestalten, dass sie langfristig unserer ökologischen und…” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase | |||||
| 17 | 9 contacts → | ||||
Exact match “Mit kühnem Denken entwickeln PRAGLOWSKI ARCHITEKTEN innovative Lösungen für die Sanierung und den Umbau von Immobilien.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase | |||||
| 18 | 9 contacts → | ||||
Exact match “Architecture & Planning” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase | |||||
| 19 | 8 contacts → | ||||
Exact match “Nach Gründung der Architekten-Partnerschaft im Jahr 1997 in Darmstadt und einem Standortwechsel nach Frankfurt am Main in 2006, wird apd heute als interdisziplinäres Architektur-…” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase | |||||
| 20 | 8 contacts → | ||||
Exact match “The technologies available to optimise heating, cooling, ventilation and water management are continually being improved.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase | |||||
| 21 | 8 contacts → | ||||
Exact match “Haydn Ingenieure heißt Kompetenz für Energieberatung und ganzheitliche Projektentwicklung der kompletten technischen Gebäudeausrüstung.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase | |||||
| 22 | 8 contacts → | ||||
Exact match “KLIMAVOMFEINSTEN GmbH Ingenieurbüro zukunftsfähiger Gebäudetechnologien” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase | |||||
| 23 | 7 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase | |||||
| 24 | 7 contacts → | ||||
Exact match “Die Atrium Baubetreuungsgesellschaft wurde 1994 als Wohnungsbauträger und Projektentwickler gegründet.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase | |||||
| 25 | 6 contacts → | ||||
Exact match “Klima Kontor - Atmosphäre schaffen Über uns: Klima Kontor ist ein führendes Architektur- und Ingenieurbüro, das sich auf nachhaltige und energieeffiziente Lösungen spezialisiert…” Recorded in the RevenueBase company graph · Oct 9, 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 “building retrofit companies”. 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 360 building retrofit companies based in Germany
See the full list, filter by size, metro and specialty, and access 726 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Building retrofit companies based in Germany at a glance
As of Oct 9, 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 360 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 “building retrofit 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 726 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 October 9, 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.
Building retrofit companies by metro
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 “building retrofit companies”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many building retrofit companies are there based in Germany?
RevenueBase identified 360 company matches for building retrofit companies associated with Germany as of October 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?
Apoprojekt tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city has the most building retrofit companies?
Hamburg leads with 25 company records, followed by Berlin (19) and Munich (19).
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 726 professional contacts with verified work emails tracked across these 360 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 October 9, 2026.
Ready to reach these companies? Verified emails and direct dials for all 360 building retrofit companies based in Germany. Start with a free account, no credit card.
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Building retrofit companies by geography
- Building retrofit companies based in Paris, France
- Building retrofit companies based in Hamburg, Germany
- Building retrofit companies based in Madrid, Spain
- Building retrofit companies based in London, United Kingdom
- Building retrofit companies based in New York, United States
- Building retrofit companies based in Australia
- Building retrofit companies based in Austria
- Building retrofit companies based in Belgium
- Building retrofit companies based in Brazil
- Building retrofit companies based in Canada
- Building retrofit companies based in Finland
- Building retrofit companies based in France
Browse the directory
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.
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- Building retrofit companies based in Paris, France
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- Building retrofit companies based in New York, United States
- Building retrofit companies based in Australia
Company intelligence · public preview
Top 25 building retrofit companies based in Germany
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 360 matching company records for building retrofit companies based in Germany, with 1,755 tracked contacts and 726 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: October 9, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 building retrofit companies based in Germany
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 |  Apoprojektapoprojekt.deHQ: Hamburg, GermanyReported employees: 501-1,000 | Hamburg, Germany | 501-1,000 | Exact match | 402 contacts → |
“Wir geben bestehenden Gebäuden eine neue Zukunft Vom Mieterausbau über Refurbishment & Revitalisierung bis hin zu maßgeschneiderten ESG-Lösungen realisiert apoprojekt erfolgreich…” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Ecoworksecoworks.tech HQ: Berlin, GermanyReported employees: 51-200 | Berlin, Germany | 51-200 | Exact match | 119 contacts → |
“ecoworks is the trusted partner for the housing sector when it comes to affordable, energy-efficient renovations.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  Vollack Gruppevollack.deHQ: Karlsruhe, GermanyReported employees: 201-500 | Karlsruhe, Germany | 201-500 | Exact match | 94 contacts → |
“Gebäude.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  Delta Gruppedelta-gruppe.deHQ: Geisenhausen, GermanyReported employees: 201-500 | Geisenhausen, Germany | 201-500 | Exact match | 73 contacts → |
“Our roots are Bavarian.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Fischbach Gruppefischbach-gruppe.de HQ: Gelsenkirchen, GermanyReported employees: 201-500 | Gelsenkirchen, Germany | 201-500 | Exact match | 57 contacts → |
“Ein starker Verbund erstklassiger Baufirmen Die Fischbach Gruppe ist ein eng verbundenes Netzwerk aus Bauunternehmen verschiedener Gewerke mit den Schwerpunkten Modernisierung…” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  42watt42watt.deHQ: Munich, GermanyReported employees: 51-200 | Munich, Germany | 51-200 | Exact match | 47 contacts → |
“In a market full of complexity and empty promises, 42watt makes energy-efficient building modernization simple, reliable, and actionable.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Renewa Gmbhrenewa.deHQ: Hamburg, GermanyReported employees: 51-200 | Hamburg, Germany | 51-200 | Exact match | 30 contacts → |
“RENEWA ist dein unabhängiger Partner für energetische Sanierung.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  KAI Otto Architektenkaiotto.deHQ: Munich, GermanyReported employees: 51-200 | Munich, Germany | 51-200 | Exact match | 29 contacts → |
“Das Büro Kai Otto Architekten plant und realisiert moderne und funktionale Bauprojekte für den Forschungs, Pharma- und Gesundheitsbereich genauso wie Bildungs- und Gewerbebauten.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  WUP Ingenieurewup-ing.euHQ: Cologne, GermanyReported employees: 51-200 | Cologne, Germany | 51-200 | Exact match | 28 contacts → |
“Unser Unternehmen ist Spezialist und Generalist für Bauvorhaben jeglicher Komplexität.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  Sanierungsprofi Gmbhsanierungsprofi.deHQ: Karlsruhe, GermanyReported employees: 51-200 | Karlsruhe, Germany | 51-200 | Exact match | 26 contacts → |
“sanierungsprofi ist ein Tochterunternehmen der weisenburger-Gruppe und kann dadurch auf jahrelange Erfahrung und Expertise zurückgreifen.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  Berk Partner Bauingenieure Gmbhberk-partner.deHQ: Munich, GermanyReported employees: 11-50 | Munich, Germany | 11-50 | Exact match | 15 contacts → |
“Berk + Partner Bauingenieure GmbH Ingenieurbüro für Tragwerksplanung Tragwerksplanung Bauen im Bestand Revitalisierung Bestandserkundungen” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  Hetzel Sponheuerhetzelsponheuer.deHQ: Essen, GermanyReported employees: 51-200 | Essen, Germany | 51-200 | Exact match | 15 contacts → |
“Sie planen die Erweiterung eines Industriebaus?” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Metabuildmetabuild.de HQ: Berlin, GermanyReported employees: 11-50 | Berlin, Germany | 11-50 | Exact match | 15 contacts → |
“Metabuild supports owners and investors with expert-led engineering services grounded in high-resolution building simulations.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  TGA Bodensee Gmbhtga-bodensee.deHQ: Salem, GermanyReported employees: 51-200 | Salem, Germany | 51-200 | Exact match | 14 contacts → |
“tga bodensee GmbH ist ein Unternehmen, das die Beratung und Umsetzung von zukunftsweisender Haus- und Energietechnik sowohl für Privat- als auch Gewerbekunden anbietet.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  Tigev Engineering Gmbhtigev.deHQ: Münster, GermanyReported employees: 11-50 | Münster, Germany | 11-50 | Exact match | 13 contacts → |
“Gebäude sind unsere Leidenschaft – und das seit mehr als zwei Jahrzehnten.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  Morgengrünmorgengruen.ingHQ: Cologne, GermanyReported employees: 11-50 | Cologne, Germany | 11-50 | Exact match | 12 contacts → |
“MorgenGrün – Innovationen von ZWP Wir wollen vor allem eines: mit der Kraft von Innovationen Gebäude und Liegenschaften so gestalten, dass sie langfristig unserer ökologischen und…” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  Praglowski Architektenpraglowski.deHQ: Aachen, GermanyReported employees: 11-50 | Aachen, Germany | 11-50 | Exact match | 9 contacts → |
“Mit kühnem Denken entwickeln PRAGLOWSKI ARCHITEKTEN innovative Lösungen für die Sanierung und den Umbau von Immobilien.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  Coido Architectscoido.deHQ: Hamburg, GermanyReported employees: 11-50 | Hamburg, Germany | 11-50 | Exact match | 9 contacts → |
“Architecture & Planning” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  APD Architektur Ingenieurbüroapd-architekten.deHQ: Frankfurt, GermanyReported employees: 11-50 | Frankfurt, Germany | 11-50 | Exact match | 8 contacts → |
“Nach Gründung der Architekten-Partnerschaft im Jahr 1997 in Darmstadt und einem Standortwechsel nach Frankfurt am Main in 2006, wird apd heute als interdisziplinäres Architektur-…” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Christofferschristoffers.com HQ: Delmenhorst, GermanyReported employees: 51-200 | Delmenhorst, Germany | 51-200 | Exact match | 8 contacts → |
“The technologies available to optimise heating, cooling, ventilation and water management are continually being improved.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  Haydn Ingenieure Gmbh & Co. KGhaydn-ingenieure.deHQ: Passau, GermanyReported employees: 11-50 | Passau, Germany | 11-50 | Exact match | 8 contacts → |
“Haydn Ingenieure heißt Kompetenz für Energieberatung und ganzheitliche Projektentwicklung der kompletten technischen Gebäudeausrüstung.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Klimavomfeinsten Gmbhklimavomfeinsten.de HQ: Berlin, GermanyReported employees: 11-50 | Berlin, Germany | 11-50 | Exact match | 8 contacts → |
“KLIMAVOMFEINSTEN GmbH Ingenieurbüro zukunftsfähiger Gebäudetechnologien” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Klaus Fischbach Gmbhfischbach-gelsenkirchen.de HQ: Gelsenkirchen, GermanyReported employees: 1-10 | Gelsenkirchen, Germany | 1-10 | Exact match | 7 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 24 |  Atrium Baubetreuungsgesellschaft MBHatrium-bauprojekte.deHQ: Leipzig, GermanyReported employees: 1-10 | Leipzig, Germany | 1-10 | Exact match | 7 contacts → |
“Die Atrium Baubetreuungsgesellschaft wurde 1994 als Wohnungsbauträger und Projektentwickler gegründet.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 |  Klima Kontorklima-kontor.deHQ: Hamburg, GermanyReported employees: 11-50 | Hamburg, Germany | 11-50 | Exact match | 6 contacts → |
“Klima Kontor - Atmosphäre schaffen Über uns: Klima Kontor ist ein führendes Architektur- und Ingenieurbüro, das sich auf nachhaltige und energieeffiziente Lösungen spezialisiert…” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 360 company matches
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Building retrofit companies: dataset insights
October 9, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
339 records in the displayed employee bands.
21 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
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 360 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: October 9, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Building retrofit companies by metro
Questions about this company list
What does Exact match mean for building retrofit companies?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many building retrofit companies did RevenueBase find based in Germany?
The saved snapshot records 360 matching company records, 1,755 tracked contacts and 726 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: October 9, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Building retrofit companies by geography
- Building retrofit companies based in Paris, France
- Building retrofit companies based in Hamburg, Germany
- Building retrofit companies based in Madrid, Spain
- Building retrofit companies based in London, United Kingdom
- Building retrofit companies based in New York, United States
- Building retrofit companies based in Australia
- Building retrofit companies based in Austria
- Building retrofit companies based in Belgium
- Building retrofit companies based in Brazil
- Building retrofit companies based in Canada
- Building retrofit companies based in Finland
- Building retrofit companies based in France
Browse the directory
Cite this list
RevenueBase Data Team. Top 25 building retrofit companies based in Germany. Snapshot: October 9, 2026. https://revenuebase.ai/companies/building-retrofit-companies/germany.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Building retrofit companies based in Paris, France
- Building retrofit companies based in Hamburg, Germany
- Building retrofit companies based in Madrid, Spain
- Building retrofit companies based in London, United Kingdom
- Building retrofit companies based in New York, United States
- Building retrofit companies based in Australia
Company intelligence · public preview
Top 25 building retrofit companies based in Germany
RevenueBase records 360 matching company records for building retrofit companies based in Germany, with 1,755 tracked contacts and 726 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: October 9, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 building retrofit companies based in Germany
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 | Apoprojektapoprojekt.de HQ: Hamburg, GermanyReported employees: 501-1,000 | Hamburg, Germany | 501-1,000 | Exact match | 402 contacts → |
“Wir geben bestehenden Gebäuden eine neue Zukunft Vom Mieterausbau über Refurbishment & Revitalisierung bis hin zu maßgeschneiderten ESG-Lösungen realisiert apoprojekt erfolgreich…” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Ecoworksecoworks.tech HQ: Berlin, GermanyReported employees: 51-200 | Berlin, Germany | 51-200 | Exact match | 119 contacts → |
“ecoworks is the trusted partner for the housing sector when it comes to affordable, energy-efficient renovations.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Vollack Gruppevollack.de HQ: Karlsruhe, GermanyReported employees: 201-500 | Karlsruhe, Germany | 201-500 | Exact match | 94 contacts → |
“Gebäude.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Delta Gruppedelta-gruppe.de HQ: Geisenhausen, GermanyReported employees: 201-500 | Geisenhausen, Germany | 201-500 | Exact match | 73 contacts → |
“Our roots are Bavarian.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Fischbach Gruppefischbach-gruppe.de HQ: Gelsenkirchen, GermanyReported employees: 201-500 | Gelsenkirchen, Germany | 201-500 | Exact match | 57 contacts → |
“Ein starker Verbund erstklassiger Baufirmen Die Fischbach Gruppe ist ein eng verbundenes Netzwerk aus Bauunternehmen verschiedener Gewerke mit den Schwerpunkten Modernisierung…” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | 42watt42watt.de HQ: Munich, GermanyReported employees: 51-200 | Munich, Germany | 51-200 | Exact match | 47 contacts → |
“In a market full of complexity and empty promises, 42watt makes energy-efficient building modernization simple, reliable, and actionable.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Renewa Gmbhrenewa.de HQ: Hamburg, GermanyReported employees: 51-200 | Hamburg, Germany | 51-200 | Exact match | 30 contacts → |
“RENEWA ist dein unabhängiger Partner für energetische Sanierung.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | KAI Otto Architektenkaiotto.de HQ: Munich, GermanyReported employees: 51-200 | Munich, Germany | 51-200 | Exact match | 29 contacts → |
“Das Büro Kai Otto Architekten plant und realisiert moderne und funktionale Bauprojekte für den Forschungs, Pharma- und Gesundheitsbereich genauso wie Bildungs- und Gewerbebauten.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | WUP Ingenieurewup-ing.eu HQ: Cologne, GermanyReported employees: 51-200 | Cologne, Germany | 51-200 | Exact match | 28 contacts → |
“Unser Unternehmen ist Spezialist und Generalist für Bauvorhaben jeglicher Komplexität.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Sanierungsprofi Gmbhsanierungsprofi.de HQ: Karlsruhe, GermanyReported employees: 51-200 | Karlsruhe, Germany | 51-200 | Exact match | 26 contacts → |
“sanierungsprofi ist ein Tochterunternehmen der weisenburger-Gruppe und kann dadurch auf jahrelange Erfahrung und Expertise zurückgreifen.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Berk Partner Bauingenieure Gmbhberk-partner.de HQ: Munich, GermanyReported employees: 11-50 | Munich, Germany | 11-50 | Exact match | 15 contacts → |
“Berk + Partner Bauingenieure GmbH Ingenieurbüro für Tragwerksplanung Tragwerksplanung Bauen im Bestand Revitalisierung Bestandserkundungen” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Hetzel Sponheuerhetzelsponheuer.de HQ: Essen, GermanyReported employees: 51-200 | Essen, Germany | 51-200 | Exact match | 15 contacts → |
“Sie planen die Erweiterung eines Industriebaus?” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Metabuildmetabuild.de HQ: Berlin, GermanyReported employees: 11-50 | Berlin, Germany | 11-50 | Exact match | 15 contacts → |
“Metabuild supports owners and investors with expert-led engineering services grounded in high-resolution building simulations.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | TGA Bodensee Gmbhtga-bodensee.de HQ: Salem, GermanyReported employees: 51-200 | Salem, Germany | 51-200 | Exact match | 14 contacts → |
“tga bodensee GmbH ist ein Unternehmen, das die Beratung und Umsetzung von zukunftsweisender Haus- und Energietechnik sowohl für Privat- als auch Gewerbekunden anbietet.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Tigev Engineering Gmbhtigev.de HQ: Münster, GermanyReported employees: 11-50 | Münster, Germany | 11-50 | Exact match | 13 contacts → |
“Gebäude sind unsere Leidenschaft – und das seit mehr als zwei Jahrzehnten.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Morgengrünmorgengruen.ing HQ: Cologne, GermanyReported employees: 11-50 | Cologne, Germany | 11-50 | Exact match | 12 contacts → |
“MorgenGrün – Innovationen von ZWP Wir wollen vor allem eines: mit der Kraft von Innovationen Gebäude und Liegenschaften so gestalten, dass sie langfristig unserer ökologischen und…” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Praglowski Architektenpraglowski.de HQ: Aachen, GermanyReported employees: 11-50 | Aachen, Germany | 11-50 | Exact match | 9 contacts → |
“Mit kühnem Denken entwickeln PRAGLOWSKI ARCHITEKTEN innovative Lösungen für die Sanierung und den Umbau von Immobilien.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Coido Architectscoido.de HQ: Hamburg, GermanyReported employees: 11-50 | Hamburg, Germany | 11-50 | Exact match | 9 contacts → |
“Architecture & Planning” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | APD Architektur Ingenieurbüroapd-architekten.de HQ: Frankfurt, GermanyReported employees: 11-50 | Frankfurt, Germany | 11-50 | Exact match | 8 contacts → |
“Nach Gründung der Architekten-Partnerschaft im Jahr 1997 in Darmstadt und einem Standortwechsel nach Frankfurt am Main in 2006, wird apd heute als interdisziplinäres Architektur-…” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Christofferschristoffers.com HQ: Delmenhorst, GermanyReported employees: 51-200 | Delmenhorst, Germany | 51-200 | Exact match | 8 contacts → |
“The technologies available to optimise heating, cooling, ventilation and water management are continually being improved.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Haydn Ingenieure Gmbh & Co. KGhaydn-ingenieure.de HQ: Passau, GermanyReported employees: 11-50 | Passau, Germany | 11-50 | Exact match | 8 contacts → |
“Haydn Ingenieure heißt Kompetenz für Energieberatung und ganzheitliche Projektentwicklung der kompletten technischen Gebäudeausrüstung.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Klimavomfeinsten Gmbhklimavomfeinsten.de HQ: Berlin, GermanyReported employees: 11-50 | Berlin, Germany | 11-50 | Exact match | 8 contacts → |
“KLIMAVOMFEINSTEN GmbH Ingenieurbüro zukunftsfähiger Gebäudetechnologien” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Klaus Fischbach Gmbhfischbach-gelsenkirchen.de HQ: Gelsenkirchen, GermanyReported employees: 1-10 | Gelsenkirchen, Germany | 1-10 | Exact match | 7 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 24 | Atrium Baubetreuungsgesellschaft MBHatrium-bauprojekte.de HQ: Leipzig, GermanyReported employees: 1-10 | Leipzig, Germany | 1-10 | Exact match | 7 contacts → |
“Die Atrium Baubetreuungsgesellschaft wurde 1994 als Wohnungsbauträger und Projektentwickler gegründet.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Klima Kontorklima-kontor.de HQ: Hamburg, GermanyReported employees: 11-50 | Hamburg, Germany | 11-50 | Exact match | 6 contacts → |
“Klima Kontor - Atmosphäre schaffen Über uns: Klima Kontor ist ein führendes Architektur- und Ingenieurbüro, das sich auf nachhaltige und energieeffiziente Lösungen spezialisiert…” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
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Building retrofit companies: dataset insights
October 9, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
339 records in the displayed employee bands.
21 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
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 360 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: October 9, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Building retrofit companies by metro
Questions about this company list
What does Exact match mean for building retrofit companies?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many building retrofit companies did RevenueBase find based in Germany?
The saved snapshot records 360 matching company records, 1,755 tracked contacts and 726 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: October 9, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
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Cite this list
RevenueBase Data Team. Top 25 building retrofit companies based in Germany. Snapshot: October 9, 2026. https://revenuebase.ai/companies/building-retrofit-companies/germany.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
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