
Golbriak Space OÜ
Golbriak Space provides compact optical communication terminals and AI-enabled data hubs for small and micro satellites, enabling high-speed, secure inter-satellite links and ground downlinks without ITU frequency licensing. Its ERMES terminal delivers 1.1 Gbps goodput in a 1.5U form factor with onboard AI acceleration for third-party machine-learning algorithms.
- Space Technology
- Telecommunications
- Artificial Intelligence
- Hardware
Funding
Raised to date
€4MRaised to date based on public sources. This may differ from the amount the company actually raised and is based only on what is publicly available on the internet.
Est. $4.4Macross 1 round

TA€4M · Seed
Announced Oct 2026
Disclosed cumulative: $4.4M
Founders
Founder details are not available yet.
Product
Problem
Distributed satellite missions face a bottleneck in data throughput: radiofrequency (RF) communication is heavily regulated, requiring lengthy ITU frequency coordination and licensing processes. Additionally, RF links offer lower data rates and are more susceptible to jamming, spoofing, and interception, limiting the speed and security of inter-satellite and ground communications.
Solution
Golbriak Space delivers optical communication terminals and services that enable fast, safe, and affordable space communications for distributed satellite missions. Using laser-based optical links with three to four times narrower beam divergence than RF, the systems achieve higher data rates and lower cost-per-bit with minimal link losses. The terminals support inter-satellite links, formation-flight connectivity, and downlink services, while AI-enabled data hubs allow on-orbit processing, storage, and exchange of information. Optical frequencies avoid ITU coordination entirely, providing a plug-and-play deployment path that bypasses regulatory bottlenecks.
Target Audience
Small and micro satellite operators, including commercial constellation providers and mission integrators, as well as government and research entities seeking high-speed, secure inter-satellite links and ground downlink services.
Features
- ERMES compact terminal: 10x10x15cm (1.5U), 1.2 kg, 8W power consumption, delivering 1.1 Gbps goodput at 808nm or 1550nm PAM wavelengths
- AI acceleration for onboard processing, including sandboxing, virtual mission support, and execution of third-party ML/deep-learning algorithms directly on the data hub
- Pointing correction capability of ±2° on both axes, ideal for formation flights and fixed constellation interconnectivity
- ARES airborne terminal: 2U+2U form factor, 1.8 kg, 15W peak power, achieving 2.5+ Gbps through the atmospheric channel
- Data interfaces include IEEE 802.3ab Gbit Ethernet, CAN, and serial, with internal buffering up to 64 Gbyte
- Optical downlink service starting at 18€/min at 1 Gbps, with link distances up to 10,000 km on the base ERMES model