• Stargate Hydrogen

  Participated · Series A · Mar 2025

  Stargate Hydrogen is a Tallinn-based manufacturer of electrolyser stacks and systems that has developed proprietary stack technology to increase reliability and minimize equipment degradation. Its innovations are designed to improve unit economics and raise returns for green hydrogen project developers. The performance of Stargate stacks has been validated by ZSW in Stuttgart. Customers include Fortum, Utilitas, and ABB. Led by CEO Marko Virkebau, the company intends to use the funds to scale manufacturing capacity, expand internal testing capabilities, and establish strategic partnerships within the global green hydrogen ecosystem. It raised €11M in a Series A and, together with grants, reports $50M of total committed capital. Stargate Hydrogen develops ceramic-based electrolysis technology that replaces precious-metal catalysts with ceramic-based catalyst materials to reduce the levelized cost of hydrogen. The company has created a proprietary stack and system design and treats the electrolyzer as a battery system, applying lessons from lithium-ion battery development cycles. Its IP portfolio covers materials, electrodes, stack design and plant control systems. The first installations of Stargate’s electrolyzer technology are already deployed in the field. Led by CEO Marko Virkebau, the company plans to use new funding to expand operations and advance development efforts. Stargate is based in Tallinn, Estonia.

• Spaceit

  Participated · Seed · Aug 2021

  Spaceit offers a Mission Control as a Service (MCaaS) platform for satellite operations alongside a suite of simulators aimed at strengthening space-sector cybersecurity defenses. The company says existing market solutions are not scalable, contain cybersecurity flaws, and cannot support the rising number of satellite constellations. Spaceit targets reducing satellite mission budgets by more than 80% to democratise satellite deployments and provide better radio coverage. The article cites rapid growth in satellite launches as increasing demand for secure, extensive radio communications systems. Spaceit is Tartu-based and intends to use new funding to further develop its platform. The startup raised capital in a pre-seed round to accelerate product development.

No current team members are available.