Companion.energy raises €7.8M seed led by Realyze Ventures and Pi Labs
What's the deal? Paris-based impact VC firm Asterion VenturesDealroom has a profile for this one. Try Dealroom → has made its first investment outside France, joining a €7.8M seed round in Belgian energy tech startup Companion.energy. The round was led by Realyze VenturesDealroom has a profile for this one. Try Dealroom → and Pi LabsDealroom has a profile for this one. Try Dealroom →, with existing investors also participating.
Companion.energy builds software that helps large industrial and commercial enterprises optimise energy procurement and manage distributed assets in real time. The company says its platform manages more than 2 TWh of annual energy consumption and production, representing roughly €500M in combined energy spend and revenues.
Companion.energy claims revenue grew tenfold in the year to mid-2026, surpassing €1M in annual recurring revenue.
Why now? Asterion has been telegraphing its expansion plans since early 2026. In January 2026, partner Antonin Léonard told Impact Loop the firm was actively targeting Belgium, the Netherlands, Spain, Switzerland, Italy, and Germany after opening an Amsterdam office.
The investment came via a special purpose vehicle combining an allocation from Asterion's €8M pre-seed fund and a group of angel investors — not from the new €100M fund it is currently raising.
What could go wrong? Expanding across borders introduces new regulatory environments and market dynamics. Deploying capital through an SPV rather than a dedicated fund also signals the firm is stretching before its larger vehicle is closed — a move that could complicate portfolio management if the €100M raise hits snags.
The signal: Companion.energy is classified as an "early growth" stage company on Dealroom, suggesting this seed round is fuelling a startup already showing commercial traction — consistent with its claimed tenfold revenue growth. For Asterion, a fund anchored by 900+ angel investors rather than institutional LPs, deploying via an SPV to land a cross-border deal before its €100M vehicle closes signals urgency to establish a pan-European portfolio footprint while energy tech momentum holds.
Read more: Impact Loop
