Rebellions Secures $250 Million in Series C Funding, Achieving $1.4 Billion Valuation
Rebellions raises $250M, valued at $1.4B, to scale AI chips and redefine high-performance, energy-efficient AI computing
TL;DR
South Korean AI chip startup Rebellions has raised $250 million in a Series C funding round, boosting its valuation to $1.4 billion. Led by Arm Holdings with participation from Samsung Ventures, Pegatron VC, and Lion X Ventures, the round also saw contributions from existing investors like Korea Development Bank and Korelya Capital. Founded in 2020 by Sunghyun Park, Jinwook Oh, Hyoeun Kim, and Sung-ho Shin, Rebellions develops energy-efficient AI accelerators for data centers and large language models. Its flagship REBEL-Quad chip leverages chiplet technology and HBM3E memory. The funding will scale production, expand markets, and accelerate innovation in AI hardware.
South Korean AI chip start up Rebellions has made headlines by raising $250 million in its Series C funding round, boosting its valuation to an impressive $1.4 billion. The investment round was spearheaded by Arm Holdings, a global leader in semiconductor IP, signalling strong strategic confidence in Rebellions’ technology and market potential. Other notable investors joining the round included Samsung Ventures, Pegatron's venture arm, and Lion X Ventures Pte, while existing investors such as Korea Development Bank and Korelya Capital also participated. The funding will allow Rebellions to scale up production, accelerate research and development, and strengthen its presence in the highly competitive AI semiconductor market. Industry experts note that the infusion of capital is critical for companies like Rebellions, which are developing cutting-edge AI accelerators designed to meet the growing demand for energy-efficient, high-performance solutions for data centres and AI workloads.
Rebellions was founded in 2020 with a vision to redefine high-performance computing through AI chip design. Specializing in energy-efficient AI accelerators for large language models (LLMs) and enterprise data centres, the company has quickly gained a reputation for innovative architecture and design. Its flagship product, the REBEL-Quad chip, employs advanced chiplet technology and high-bandwidth memory (HBM3E), which allows for scalable and high-throughput AI processing while maintaining energy efficiency. The company focuses on addressing the rising computational demands of AI workloads, which require both speed and reduced power consumption. By integrating chiplet-based designs with next-generation memory solutions, Rebellions is enabling organizations to deploy more powerful AI models without the prohibitive costs of energy consumption. The company’s mission emphasizes creating AI infrastructure that is not only high-performing but also environmentally sustainable, aligning with global trends toward greener data centre solutions.
Rebellions was co-founded by four industry veterans: Sunghyun Park, Jinwook Oh, Hyoeun Kim, and , each bringing complementary expertise to the company. Sunghyun Park, the CEO, holds a degree in Electrical Engineering and Computer Science from MIT and has a strong background in technology and finance, having worked at Intel, Morgan Stanley, and SpaceX. Jinwook Oh, the CTO, is an expert in AI chip architecture and system-level design, driving the technical vision behind Rebellions’ products. Hyoeun Kim focuses on strategic development, ensuring that Rebellions aligns its product roadmap with global market trends and business partnerships. Sung-ho Shin oversees product engineering and operational execution, translating innovative designs into scalable, manufacturable hardware. Together, this team combines deep semiconductor knowledge, AI expertise, and business acumen, positioning Rebellions as a rising star in the Their leadership has been praised for blending innovation with strategic partnerships.
