Top Climate tech companies in Berlin

Companies decarbonising power, transport, agriculture, and industry. Filtered to companies headquartered in Berlin.

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Ranked by current headcount across Climate tech companies headquartered in Berlin. Refreshed daily.

1
ALBA· Berlin, Berlin, Germany
ALBA ist einer der führenden Umweltdienstleister und Rohstoffversorger in Europa. Das Unternehmen erzielt einen jährlichen Umsatz von rund 1,3 Milliarden Euro und beschäftigt insgesamt 5.400 Mitarbeiter*innen, die jeden Tag einen Beitrag für mehr Klimaschutz und eine saubere Umwelt leisten. Papier, Glas, Kunststoffe, Biomasse, Stahl und Metalle – Recycling ist unsere Leidenschaft. Wir sparen Rohstoffe, Energie und CO2 ein. Wir sind die Nachhaltigkeitsmacher.Unter folgendem Link finden Sie unsere Datenschutzerklärung: https://www.alba.info/datenschutz/
- 1.4k employees
- Founded 1968
2
Qcells Europe· Berlin, Berlin, Germany
Qcells is a renowned provider of comprehensive energy solutions in solar cells and modules,energy storage solutions, downstream project business, and distributed energy solutionsbusiness. It is headquartered in Seoul, South Korea and Thalheim, Germany with fourglobal R&D centres and diverse international manufacturing facilities in the U.S., SouthKorea, Malaysia and China.Qcells has a strong heritage dating back to its foundation in Germany in 1999, whenit began as a true pioneer of advanced solar cell technology. Since then, Qcells quicklybecame one of the solar industry’s leaders for its technology innovations.As an affiliate of Hanwha Group, a Fortune Global 500 company and the seventh largestconglomerate in South Korea with total assets over $197 billion, Qcells is both a trustedand bankable renewable energy partner for our customers worldwide.In addition to our Tier 1 Bloomberg rating and recognition as a BNEF Top Tier modulesupplier, our module production capacity of 12.4 GW makes us one of the largest solarsolutions providers in the world.
- 1.1k employees
3
Berliner Wasserbetriebe· Berlin, Berlin, Germany
The Berliner Wasserbetriebe does not only offer clear water, but also transparent business practices: Here is an overview of the key performance indicators from our Balance Sheet and Income Statement on an annualised basis.Furthermore, you will find some meaningful performance figures for the Water Supply and Drainage Division.
- 1k employees
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4
Berliner Stadtreinigung· Berlin, Berlin, Germany
6.400 Persönlichkeiten, mehr als 60 Berufe, eine gemeinsame Aufgabe: Wir gestalten unsere Stadt ökologisch, wirtschaftlich und sozial – für mehr Lebensqualität in Berlin!Dies erreichen wir als Team, in das sich alle täglich einbringen – als IT-Profi, Müllwerkerin, Ärztin, Kundenberater, Koch, Juristin, Ingenieurin, Straßenreiniger oder Berufskraftfahrerin. Unsere Mitarbeiterinnen und Mitarbeiter in Zentral-, Verwaltungs- und Leitungsfunktionen unterstützen die Arbeit der Kolleginnen und Kollegen auf der Straße. Sie schaffen den organisatorischen Rahmen und entwickeln die BSR kontinuierlich weiter.
- 672 employees
- Founded 1951
5
Interstate Waste Services, Inc.· Teaneck, New Jersey, United States
Interstate Waste Services, Inc. is one of the nation’s fastest growing and most innovative solid waste collection, disposal, and recycling firms. We owe this remarkable growth to our dedicated employees who share a company-wide respect for their colleagues, a commitment to customer service as well as a responsibility to the environment.Our goal is to provide every one of our customers with prompt, dependable service at a fair and competitive price. We have expanded, modernized, and prepared IWS to meet the ever-changing needs of commercial, industrial, and residential waste generators throughout New Jersey, New York, Connecticut, and Ohio.Sustainability and waste stream reduction are the cornerstones of our business. Our state-of-the-art material recovery facilities and recycling services help us reduce our dependency on landfills, and our waste-by-rail operation helps us reduce our carbon footprint. At IWS, we are committed to doing the right thing for our customers and the environment.We are privately-owned, locally operated, and proud of our family legacy in the waste industry. Interstate Waste Services, Inc. is the parent company of Action Environmental Services.
- Private equity
- 668 employees
- Founded 1991

6
BIR· Bergen, Vestland, Norway
BIR har en ambisjon om å være en pådriver for et sirkulært samfunn. Vi jobber målrettet for å tilrettelegge for ombruk, gjenvinne ressursene og sikre riktig håndtering av bosset. Som vestlendingenes egen miljøbedrift forplikter vi oss til å skape verdi for kunder, eiere og samarbeidspartnere. BIRs visjon er «sammen gir vi bosset ny verdi». BIR er et av Norges største renovasjonsselskaper. Vi er ansvarlig for avfallshåndteringen til de 389 743 innbyggerne i ti av BIRs elleve eierkommuner. Selskapet tilbyr også avfallsløsninger for næringslivet. Konsernet BIR ble etablert 1. juli 2002. Historien strekker seg helt tilbake til 1881 da Bergen Renovationsvæsen ble etablert som Nordens første kommunale renovasjonsselskap. BIR AS er eid av kommunene Askøy, Bergen, Bjørnafjorden, Eidfjord, Kvam, Osterøy, Samnanger, Ulvik, Vaksdal, Voss og Øygarden. www.bir.no--BIR AS is one of Norway's largest waste management companies, responsible for waste handling for over 389,743 residents in 10 municipalities.The company is owned by the municipalities of Askøy, Bergen, Bjørnafjorden, Eidfjord, Kvam, Osterøy, Samnanger, Ulvik, Vaksdal, Øygarden, and Voss. All owner municipalities, except for Øygarden, have assigned BIR the responsibility for the statutory tasks related to handling waste from the residents in the municipalities.BIR AS also offers waste solutions, consulting, and services to the industrial and business sectors in the region.The BIR AS group was established on July 1, 2002, but its history dates back to 1881 when "Bergen Renovationsvæsen" was established as the first municipal waste management company in the Nordic countries.OrganizationOne division handles the statutory waste management tasks related to the collection, recycling, and treatment of household waste. These services are carried out by BIR Husholdning, BIR Infrastruktur, BIR Nyverdi, and BIR Ressurs for BIR’s owner municipalities. BIR Bedrift offers its services in the market in competition wi
- 508 employees
7
thermondo· Berlin, Berlin, Germany
Gemeinsam machen wir Wohnen klimaneutral!Kein Haus gleicht dem anderen, aber für jeden von uns ist es ein Zuhause. Es steht für das, was uns ausmacht, was uns wichtig ist. Hier wollen wir seit jeher geborgen, sicher und ungestört sein.Aber wir glauben, beim eigenen Heim geht es künftig um mehr - nämlich um die Generationen, die nach uns kommen.Wir glauben, unsere Häuser können mehr! Sie können elektrifiziert, intelligent, effizient, unabhängig und klimaneutral sein.Wir glauben, klimaneutrales Wohnen sollte für jeden zugänglich, erschwinglich und einfach sein.Und mit jeder Wärmepumpe vor unseren Häusern, jeder Photovoltaikanlage auf unseren Dächern und jeder Wallbox in unseren Garagen leisten wir einen Beitrag für klimaneutrales Wohnen. Wir glauben nicht nur an klimaneutrales Wohnen - wir ermöglichen es.Für Millionen von Eigenheimen. Gemeinsam. Jeden Tag. Heim für Heim.---thermondo wurde 2013 in Berlin als digitaler Heizungsinstallateur gelauncht und ist heute ein zentraler Möglichmacher der Energiewende für Deutschlands Ein- und Zweifamilienhäuser im Bestand. Die thermondo Gruppe, zu der auch der südwestdeutsche Photovoltaik-Champion FEBESOL zählt, beschäftigt über 1.200 Mitarbeitende, darunter über 600 festangestellteHandwerker:innen und hat eine installierte Basis von über 55.000 Anlagen. Wir wollen klimaneutrales Wohnen für jede:n Hausbesitzer:in zugänglich, erschwinglich und so einfach und zuverlässig wie möglich machen. Mit eigens entwickelter Software und standardisierten Services rund um den Heizungswechsel sind wir ein Pionier in der Digitalisierung des Handwerks und wurden mehrfach für unsere Innovationskraft ausgezeichnet. Mit dem Einbau von modernen Heizungsanlagen haben wir seit 2013 dazu beigetragen, über eine Million Tonnen CO2 einzusparen.
- Debt
- 503 employees
- Founded 2013
8
Planet Wild· Berlin, Berlin, Germany
Planet Wild is a global community of people who care deeply about nature and want to help our planet bounce back. We are on a mission to bring back endangered species, clean up our oceans and rewild entire landscapes with your help.🤝 Does your business have an interest in rewilding? Partner with Planet Wild to fund groundbreaking rewilding missions, showcase your environmental leadership and create real impact.Take a look at our offer here: https://planetwild.com/businesses.EVERY MONTH, we work with wildlife pioneers worldwide to🦁 bring back endangered species🌊 protect oceans and aquatic life🌳 revive forests and rewild landscapes.EVERY MEMBER can vote on how we spend the money.EVERY MISSION is documented in videos. 100% transparency.EVERYONE can join. The bigger the community grows, the bigger these missions will get!
- 382 employees
- Founded 2023
9
Veolia | Deutschland· Berlin, Berlin, Germany
Die Veolia-Gruppe gilt als weltweiter Maßstab für optimiertes Ressourcenmanagement. Sie blickt auf 170 Jahre Erfahrung zurück und beschäftigt 215.000 Mitarbeitende auf allen 5 Kontinenten.☑️ 12.500 Mitarbeitende☑️ 250 Standorte☑️ 2,9 Milliarden Euro Umsatz in 2024☑️ Geschäftsbereiche: Entsorgung, Wasser, Energie☑️ Sichere Jobs mit Sinn, Entwicklung & Work-Life-BalanceSeit über 25 Jahren sorgt Veolia auch in Deutschland für gesundes Trinkwasser, sauberes Abwasser, umweltgerechtes Abfallmanagement inkl. Wertstoffrecycling und sichere Energieversorgung. Privat- und Gewerbekunden sowie Handels- und Industriebetriebe erhalten Dienstleistungen nach Maß. Dabei bietet Veolia fortschrittliche Lösungen, die die Umwelt und das Klima schützen.Als grüner Arbeitgeber bieten wir nachhaltige Arbeit mit Sinn, Jobsicherheit, Entwicklungsmöglichkeiten, Gesundheitsförderung, Familienfreundlichkeit und eine gute Work-Life-Balance.Impressum: http://www.veolia.de/impressum Datenschutzerklärung: http://www.veolia.de/datenschutz-social-media Netiquette: http://www.veolia.de/netiquette
- 307 employees
- Founded 2016
10
ITU AbsorbTech· New Berlin, Wisconsin, United States
With over 90 years of experience in the industrial laundry business, ITU AbsorbTech is the largest Wisconsin-based supplier of environmentally friendly industrial absorbents, towels, mats, garments and other launderable textiles for businesses and industries. We take great pride in providing Genuine Service Excellence to a wide variety of customer in the manufacturing, printing, retail and service industries.ITU AbsorbTech is not just an industrial laundry! Locally owned and operated, led by the third generation of family ownership, ITU AbsorbTech is involved in the development of new technologies involving wastewater pretreatment, solvent recovery and innovative products.
- 257 employees
- Founded 1930

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Find engineers at Climate tech companies in Berlin

Berlin has long been a hub for Climate tech, and the list above ranks the largest Climate tech companies headquartered there by current headcount, drawn from public LinkedIn and Crunchbase records. With 167 matching companies in Refolk’s index, this is a good map of where the Climate tech talent in Berlin lives - useful whether you’re recruiting, partnering, or sizing a market.

The biggest Climate tech companies in Berlin tend to be the gravitational centres for specialised talent - senior engineers, ML researchers, applied scientists, designers - while the smaller ones compete on speed, equity, and proximity to founders.

Refolk converts this list into a live search. Ask for “Climate tech engineers in Berlin hiring senior staff” or “founders of Climate tech companies in Berlin who left in the last 12 months” and Refolk returns a ranked shortlist with the evidence that earned each person a spot.

How this list is built

Refolk pulled Climate tech companies headquartered in Berlin from public LinkedIn and Crunchbase records, ranked them by current employee count, and kept those with at least 10 employees. The list refreshes once a day.

Last refreshed: Wed, 05 Aug 2026 11:31:19 GMT

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How is this ranking built?

The list draws on the public company graph - headcount and growth signals, funding history, and recency. The criteria chips at the top show exactly which filters produced it, and the methodology section explains the ranking.

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