Arkadia Space

Spanish startup making thrusters that run on hydrogen peroxide, a green alternative to toxic hydrazine, for satellites and launch vehicles.

The 2026 EIC package mixes a EUR 2.5M grant, EUR 6M EIC equity and EUR 6M matching private money (Payload); the stage stays seed because no later priced round is reported.

Products, by altitude

Low Earth orbit · 160–2,000 km

Testing
DARK propulsion system
Satellite thruster that runs on hydrogen peroxide
In development
Hypergolic bipropellant engine
Higher-thrust satellite engine burning hydrogen peroxide and fuel

Launch · From the pad to orbit

In development
250 N reaction control thrusters
Hydrogen peroxide thrusters that steer a reusable small rocket

Known rounds

Date	Round	Amount
Mar 2026	EIC Accelerator grant and equity plus matching private investment	€14.5M⁠¹
Oct 2023	Seed	$3M⁠²

Milestones

Jun 2025 Reported a successful in-orbit test of its hydrogen peroxide DARK propulsion system on a D-Orbit ION carrier launched in March 2025.⁠³
Feb 2025 Signed to supply 250-newton monopropellant thrusters for the reaction control system of MaiaSpace's reusable launcher.⁠⁴

Sources

PayloadMar 27, 2026
SpaceNewsOct 30, 2023
SpaceNewsJun 9, 2025
SpaceNewsFeb 12, 2025

Updated Oct 22, 2026 · How we source facts · Suggest a correction