SpaceComputer
Satellite-based trusted computing and random number service network
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About SpaceComputer
SpaceComputer is building a satellite-based trusted computing layer for the space internet. Its core product, Space Fabric, is a hardware-software architecture that turns orbital satellites into physically isolated secure computation environments. Unlike terrestrial data centers, satellites in orbit are inaccessible after launch, which provides a unique tamper-resistant root of trust.
The company offers several services: Orbitport, a unified API gateway for accessing space infrastructure; SpaceTEE, a trusted execution environment for confidential computing; a key management service (KMS) that generates and stores cryptographic keys entirely on orbit; and a cosmic true random number generator (cTRNG) for high-entropy randomness. These services target use cases like confidential AI inference, classified data processing, and multi-party computation where verifiable execution location matters.
The market pain point SpaceComputer addresses is the fundamental vulnerability of ground-based trusted computing: physical access to hardware eventually enables tampering, and vendor-provisioned secrets create opaque trust chains. By moving the trust anchor to space, where physical access is impossible after launch, and by using multi-party verification through independent ground stations, SpaceComputer aims to provide provable computation integrity.
In the past six months (2026-03 to 2026-09), SpaceComputer announced Space Fabric in March, with the first payload slated for orbit in Q4 2026. The team has been preparing for launch and engaging with US-based industry events to build partnerships. The company also clarified its strategic focus on the secure compute platform, deprioritizing earlier plans for a space-native decentralized application layer. No major negative events were reported during this period.
SpaceComputer's key milestones include a $10M seed round led by Maven11 and Lattice, which validated its satellite-based blockchain verification approach. In 2025, it launched initial test satellites via SpaceX's Falcon 9, proving orbital hardware viability. The release of Space Fabric hardware and the Orbitport API established a foundation for confidential compute and randomness services. A strategic pivot from a dedicated Space L1 to a secure compute platform reflected market-driven refinement, prioritizing infrastructure over proprietary chains. These events mark technical validation, product maturation, and strategic focus, positioning SpaceComputer as a critical layer for space-native security services.
SpaceComputer (satellite-based blockchain verification layer) has made significant progress in H1 2026. Key developments include:
Partnership with Tropic Square: Integrated TROPIC01, an open-source auditable secure element, into Space Fabric hardware as a hardware root of trust. This supports attestation flows and binds cryptographic identity to physical payloads, with in-orbit validation planned for upcoming missions.
2026 Roadmap Update: Announced two core pillars—Secure Compute Platform (confidential compute hardware, space gateway, and secure communication) and Space-Native Decentralized Application Platform (Space L1). However, the latter was deprioritized to focus entirely on the Secure Compute Platform, which addresses the immediate market need for trusted space infrastructure.
Technical Milestones: Development of cTRNG (Cosmic True Random Number Generator) using cosmic radiation as entropy source, TEE-based confidential computing, and KMS with multi-party computation. These will be deployed on satellites and ground stations.
Launch Schedule: First in-orbit test planned for Q4 2026 (October), with two additional missions in 2027. The company is working with two semiconductor providers (Tropic Square and Infineon) for hardware security.
Future focus: Completing Space Fabric V1 deployment, expanding Orbitport (trust-minimized interface), and building toward a production-grade space-based verification layer by 2027.
Daniel Exponent (Co-founder, Twitter: https://x.com/semicondurian) – Background in semiconductor physics and engineering, early-stage venture capital, R&D in nano-biosensors and quantum nano-electronics. Leads strategic direction and business operations.
Filip Rezabek (Co-founder, Twitter: https://x.com/rezabfil) – Distributed systems and cryptography researcher, PhD candidate in distributed computing. Leads design and development of core distributed systems and cryptographic architecture, focusing on TEEs.
Amir Yahalom (Chief Engineer, LinkedIn: https://il.linkedin.com/in/amir-yahalom) – Software architect and lead engineer with 13+ years of experience. Previously at Chainlink Labs and SSV Labs, building decentralized protocols and offchain computing. Currently heads engineering at SpaceComputer.
Matej Y. (Co-founder, LinkedIn: https://www.linkedin.com/in/yangwao, Twitter: https://x.com/yangWao) – Co-founder with contributions to SpaceComputer's vision and product development. Specific background details not publicly available in provided sources.