Rebellions Raises $250 Million to Forge the Next Generation of AI Infrastructure, in Alliance with Arm and Samsung

Rebellions, developer of next-gen AI inference chips, led by Sunghyun Park, Jinwook Oh, Hyo-Eun Kim, and Sungkyue Shin, has secured $250 million in Series C round at a valuation of $1.4 billion. The round marked a significant milestone, securing Arm as a strategic partner to drive ongoing innovation for next-generation AI data center infrastructure. Additional support came from Samsung Ventures and Pegatron VC, strengthening strategic ties across the semiconductor and AI module ecosystem. Existing investors, including the Korea Development Bank and Korelya Capital, returned with follow-on investments, while new international investors, such as Lion X Ventures, also joined the round.

The funding will fast-track REBEL-Quad mass production and advance Rebellions’ chiplet-based roadmap, engineered to deliver energy-efficient, high-performance inference infrastructure for the world’s most demanding AI models.

Rebellions’ first-generation chips, ATOM™ and ATOM™-Max, are already in mass production, powering deployments across Japan, Saudi Arabia, and the United States, including Korea’s largest commercial AI service. Building on that momentum, the company unveiled REBEL-Quad in August, the world’s first UCIe-Advanced AI accelerator, designed to deliver peta-scale inference with unprecedented efficiency and scalability for next-generation data centers.

Rebellions is set to expand across the United States, Europe, and key Asia-Pacific markets, strengthening sovereign AI infrastructure initiatives while drawing top global talent in AI and semiconductors.