FormerSpaceX

Rebellions

Energy-efficient AI inference chips.

Founded
2020
Headquarters
Seongnam, South Korea
Disclosed funding
$850M
Status
Operating
Sector
Software & AI
Latest round
Pre-IPO, $400M
Reported valuation
$2.34B
Website
rebellions.ai

Overview

Rebellions designs AI inference accelerators and became South Korea's first AI-chip unicorn after merging with SK Telecom's Sapeon in 2024. CEO Sunghyun Park previously worked at SpaceX as a Starlink ASIC design engineer.

Funding

About $850M cumulative including a $400M pre-IPO round (Mar 2026). Reported valuation: $2.34B (Mar 2026).

Disclosed funding is the sum of publicly reported rounds found in the sources below. It is a floor, not a complete total.

Founders

Sunghyun Park, Co-founder & CEO
At SpaceX: Starlink ASIC design engineer · 1+ year
Jinwook Oh, Co-founder & CTO
Not a SpaceX alum
Hyo-Eun Kim, Co-founder & CPO
Not a SpaceX alum
AI chipssemiconductors

Sources

  1. Wikipedia: Rebellions
  2. Business Insider via Yahoo: The SpaceX Mafia is here

Last verified September 30, 2026.