Buildings are Europe's biggest energy drain.
We are building the technology to solve it.


Your work saves real tonnes of CO2
Buildings account for 40% of Europe's energy use and 36% of its CO2 emissions. 85% of today's houses will still be standing in 2050. Insulating them cuts consumption right away, without waiting for new technology.
Here you work on exactly this lever. Our customers save up to 50% on heating costs and CO2. Every insulated building counts, and we want to reach one million of them.

We are a Certified B Corporation
As a Certified B Corporation, we meet audited standards for social and environmental responsibility, transparency and real impact. Independently verified and not just claimed.
That means your work supports a company that takes responsibility seriously. For the climate and for the people behind it.

The right moment to join
We just raised €17.5 million in a Series A. It was led by the ABN AMRO Sustainable Impact Fund, with GET Fund as co-lead and Aurum Impact newly on board, alongside our existing investors. Today we insulate a single-family home in one day at a fixed price. We operate from seven cities: Berlin, Hamburg, Bremen, Essen, Köln, Frankfurt and Minden.
The fresh capital goes into growth: more partner teams, more cities, more technology. For you that means you join early enough to really shape things. And you join at a moment when the means are there to work toward one million insulated buildings across Europe by 2035. As a Certified B Corp, we build impact firmly into our business.
„Climate action must not be a luxury project. If we can deliver retrofits at a speed and quality that every homeowner can understand and afford, then insulating one million buildings in Europe by 2035 becomes a question of scaling. The heat transition fails less because of technology than because of execution.“

AI meets craft, that is JARVIS
JARVIS is our own AI operating system. It runs along the entire journey: from the sales cockpit through scheduling and the app for the installation team to the customer portal.
That makes us not a classic trade business but a technology company at the intersection of AI and craft. We automate what can be automated so people can focus on what matters.
Nothing is set in stone
We are a young company, and you feel that every day. You act independently and entrepreneurially instead of waiting for sign-off. What you build goes live and makes a difference.
Access to the founders is direct, not filtered through three layers. In regular feedback rounds you are both supported and challenged. You actively shape our culture and way of working as we grow together.
What you get with us
Beyond impact and responsibility, the rest matters too. Here is what is included.
Salary and equity
A fair salary plus employee equity (VSOP). You decide how much upside you want to share in.
30 vacation days
30 days off a year, plus December 24 on top.
Office in Kreuzberg
An office right in the heart of Kreuzberg, on Ritterstraße.
Hybrid working
Working together in person on site, with the flexibility to work from home one to two days a week.
Learning budget
Budget for your development, so you grow with your work.
Team events
Regular events that turn colleagues into a team.
Discounted fitness offers
Discounted fitness offers, so there is room to recharge.
International culture
A team from many countries, where people from all backgrounds are welcome.
VARM to wear
Our Series A collection, for everyone who is part of the team or wants to be.
Hoodies, shirts and more. Our shop is worth a look.
Ready to build with us?
Take a look at where we need reinforcements right now.



