South Korean AI Chipmaker Rebellions Raises $250M at $1.4B Valuation

South Korean AI chipmaker Rebellions has raised $250 million in a Series C funding round led by strategic partner Arm Holdings, boosting its valuation to $1.4 billion. The funding round also attracted investment from Samsung Ventures, Pegatron VC, Lion X Ventures, Korea Development Bank, and Korelya Capital, underscoring broad confidence in the company's technology and growth prospects. Rebellions plans to use the capital to mass produce its latest flagship chip, the REBEL-Quad, designed for large-scale AI inference in data centers, and to accelerate its product development roadmap focused on energy-efficient, chiplet-based designs. The partnership with Arm aims to drive innovation in next-generation AI data center infrastructure, positioning Rebellions as a key player in the global AI semiconductor market dominated by players like Nvidia. The company is also expanding its global presence in the US, Europe, and Asia-Pacific markets and supports sovereign AI infrastructure initiatives. Rebellions’ earlier generation chips, Atom and Atom-Max, have already been commercially deployed across several countries, powering South Korea’s largest commercial AI service.