Here are the fastest-growing climate techs from Sifted’s ranking of the fastest-growing companies in DACH and CEE, by revenue growth.
Growth in climate tech no longer depends on heavy hardware. Featured startups like Climatiq, Shipzero, and Ampeco are proving that software platforms can scale faster. This trend helps explain moves like former-solar-giant Zolar’s pivot away from hardware installations toward offering SaaS solutions for the green tech installation industry.
Gone are the days when you needed big headcounts to achieve big growth. This year’s top three climate techs — Climatiq, Vok Bikes and Ehoss — have fewer than 30 employees each. This reflects trends in last year’s Sifted 250, a ranking of Europe’s 250 startups by revenue growth, where three out of the top four climate techs had fewer than 15 employees each.
1/ Climatiq
HQ: Berlin
Overall ranking: 10
Two-year CAGR%: 275.92%
Climatiq provides an API-based platform for real-time carbon emissions calculations which helps businesses and their customers reduce their carbon footprints. Founded in 2021, the startup has raised €7.8m, including €2m seed funding in September 2022, led by Singular. It has 26 employees.
2/ Vok Bikes
HQ: Tallinn
Overall ranking: 17
Two-year CAGR%: 227.55%
Vok Bikes manufactures electric cargo bikes tailored for last-mile logistics in cities. Founded in 2018, the startup has raised €5.5m, including €3.8m seed funding in June 2023 led by StartCap Green fund. Vok has 21 employees and placed 58th on the Sifted 250 last year.
3/ Ehoss
HQ: Bratislava
Overall ranking: 29
Two-year CAGR%: 148.76%
Ehoss develops climate-friendly innovations for livestock management, including solutions for biofuel production. Founded in 2022, the startup has raised €2m, including €1m seed funding in May 2023. It has 20 employees.
4/ xFarm Technologies
HQ: Lugano (Switzerland)
Overall ranking: 37
Two-year CAGR%: 117.51%
xFarm Technologies offers digital solutions to support farmers and their stakeholders in managing their agricultural operations more efficiently. Founded in 2017, the startup has raised €57m, including a €36m Series C in October 2024 led by Partech. It has 190 employees.
5/ PVcase
HQ: Vilnius
Overall ranking: 40
Two-year CAGR%: 113.39%
PVcase builds software that helps solar engineers plan and optimise large-scale photovoltaic installations. Founded in 2018, the company has raised €109m, including a €89m Series B in July 2023 led by Highland Europe. It has 264 employees and placed 238th on the Sifted 250 last year.
6/ Roofit.Solar
HQ: Tallinn
Overall ranking: 46
Two-year CAGR%: 104.95%
Roofit.Solar designs integrated solar roofing solutions, with an eye for traditional aesthetics. Founded in 2016, the startup has raised €16m, including a €6.5m Series A in March 2024 led by BayWa.r.e Energy Ventures. It has 25 employees and placed 193rd on the Sifted 250 last year.
7/ Ringy
HQ: Tartu (Estonia)
Overall ranking: 57
Two-year CAGR%: 83.40%
Ringy builds software solutions to help refurbish and resell old electronic devices. Founded in 2020, the startup has raised €2.5m, including €1.5m seed funding in March 2025, and is profitable. It has 13 employees and placed 33rd on the Sifted 250 last year.
8/ Shipzero
HQ: Hamburg (Germany)
Overall ranking: 60
Two-year CAGR%: 78.14%
Shipzero is a data platform which helps shippers, logistics service providers and carriers decarbonise their supply chains. Founded in 2018, the company has raised €10m, including an €8m Series A in April 2024. It has 57 employees and placed 74th on the Sifted 250 last year.
9/ Ampeco
HQ: Sofia
Overall ranking: 63
Two-year CAGR%: 75.47%
Ampeco provides EV charging management software solutions for large scale EV charging providers. Founded in 2018, the company has raised €38.84m, including a €24m Series B in November 2024 led by Revaia. It has 150 employees
10/ 1Komma5°
HQ: Hamburg (Germany)
Overall ranking: 75
Two-year CAGR%: 58.88%
1Komma5° helps homeowners install renewable tech like solar panels, heat pumps and energy storage batteries. Founded in 2021, the company has raised over €1bn from backers and is profitable. It has 339 employees.
11/ Be Wtr
HQ: Lausanne (Switzerland)
Overall ranking: 83
Two-year CAGR%: 51.76%
Be Wtr provides sustainable water solutions using filtration technology, to reduce single-use plastic. Founded in 2021, the company has raised €39.76m, including a €36.1m Series C in October 2024. It has 85 employees.
12/ Waste24
HQ: Grudziądz (Poland)
Overall ranking: 95
Two-year CAGR%: 38.48%
Waste24 is a SaaS platform for municipal waste and management companies to help them streamline and optimise their operations. Founded in 2021, the startup has raised €465k, including a €116k Series A in November 2023. It has nine employees.
Startups were only eligible if they were founded in or after 2010, could provide at least three years of revenue data (with a minimum of €50k in the first year and €500k in the most recent) and be private and independent.
Read the orginal article: https://sifted.eu/articles/dach-cee-fastest-growing-climate-tech-startups/
