Space Cubics Inc.

Space Cubics Inc. is a JAXA-affiliated venture founded in June 2018 in Sapporo, Japan, combining commercial embedded-computing expertise from the Int-Ball ISS/Kibo programme with JAXA reliability engineering practices. The company designs and sells FPGA-based onboard computers, favoring high-performance commercial-grade components combined with rigorous testing over pure radiation-hardened components, as an approach to deliver capable, cost-effective avionics for small satellites.

Space Cubics has real flight heritage on the ISS Kibo module through the Int-Ball free-flying camera robot, on ispace's Mission 1 and Mission 2 lunar landers, and on its own SC-Sat1a CubeSat, launched aboard Space One's KAIROS Flight 3 in February 2026.

The company's product line centers on its SC-OBC Module family of onboard computers, built on Xilinx and AMD Versal FPGA/SoC platforms running Zephyr RTOS, targeting CubeSat through larger small-satellite missions requiring both computing performance and flight-proven reliability.