About Us

Ostrom team group photo 2025

Our Mission

Ostrom is driving the green energy transition by making renewable energy more accessible and inclusive.We’ve empowered consumers to effortlessly switch, track, and reduce their electricity consumption by creating a seamless, multilingual energy management platform.

Ostrom team photo

Founding History

Matthias and Karl founded Ostrom in January 2021 with the aim of upending the German energy market.

The idea originated with Matthias while he was consulting energy companies at Oliver Wyman. After realizing how bureaucratic and outdated the processes were, he decided to move on and create a better energy utility for Germany.

Karl joined several weeks later to support user acquisition and UX. After gaining experience at several B2C startups and joining the Berlin cohort of Entrepreneur First, he was looking to found a startup of his own.

After a development period, they released an early MVP in May 2021. Within just a few months, Ostrom was providing green electricity to several customers, while the team continued refining its product and operations.

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The Three Years So Far

We have achieved some awesome things since we launched in May 2021...but we’re just getting started. Watch this space!

900+
Previous energy providers we have won our clients from
4700
Cities & towns provided with electricity across Germany
#1
4.8 on Trustpilot making us the top-ranked provider in DE
50+
Number of employees(and counting!)
Ostrom certified sealTÜV certified green electricity sealOstrom marketing visualService Champions Gold 2025 award sealOstrom Tagesspiegel Berlins Beste Arbeitgeber logo and certificate

Sounds Good?

We would love to hear from you!Check out our open positions.

Open Positions

Green Energy Made Easy

Switch and save in only 5 minutes

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