Rebellions has wrapped up a $400 million pre-IPO funding round, achieving a valuation of $2.34 billion.

      The South Korean fabless AI chip firm, supported by Samsung, SK Hynix, and Aramco, has successfully raised $650 million in the last six months and is aiming to attract Meta and xAI as customers in the US. Notably, Korea’s National Growth Fund selected Rebellions as its inaugural investment.

      Rebellions has concluded a $400 million pre-IPO funding round spearheaded by Mirae Asset Financial Group and the Korea National Growth Fund, valuing the company at around $2.34 billion. This round increases the total funding to $850 million and follows a $250 million Series C round in September 2025, indicating that Rebellions has secured $650 million in just half a year, which accounts for over 75% of its total capital.

      In tandem with this funding announcement, Rebellions unveiled two new offerings: RebelRack™ and RebelPOD™, which are vertically integrated AI infrastructure platforms designed to transition its chiplet-based Rebel100™ NPU from silicon to fully functional data centre systems.

      The Korea National Growth Fund, established as a government-supported public-private initiative to bolster strategic sectors such as AI and semiconductors, selected Rebellions as its first investment under the K-Nvidia initiative. This program aims to cultivate domestic AI chip leaders capable of competing on a global scale. The NGF’s contribution amounted to ₩250 billion (approximately $166 million) of the total funding round. Mirae Asset, a supporter of Rebellions since its Series A, led the rest of the round with contributions from private investors.

      Eung-Suk Kim, Vice Chairman and CEO of Mirae Asset Venture Investment, characterized the funding as a testament to strong belief in Rebellions’ potential "to showcase its capabilities and value on the global stage."

      Founded in 2020, Rebellions specializes in designing fabless AI chips specifically optimized for inference, focusing on the computational demands of running AI models in production rather than on training them. Its flagship chip, the Rebel100™, employs a chiplet architecture with UCIe interconnects and HBM3E memory. The company merged with Sapeon in June 2024 and has established commercial deployments across enterprises and government sectors, now employing a full-stack software strategy based on open standards including Kubernetes, vLLM, PyTorch, Triton, Hugging Face, and Red Hat OpenShift.

      The new products further enhance this vertical integration: RebelRack™ offers a production-ready inference compute unit, while RebelPOD™ combines multiple racks into a scalable cluster for extensive AI deployment.

      Sunghyun Park, Co-Founder and CEO, stated to CNBC that the primary focus is now on the US market, with "big labs" and specifically naming Meta and xAI as the targeted customers, rather than large-scale providers like Amazon and Microsoft. Active proof-of-concept trials are underway with US clients, though he acknowledged a significant constraint regarding memory chip availability: “Memory is not very easy to get. But our demand is so huge,” he noted.

      He emphasized that Rebellions is uniquely positioned compared to other inference chip startups due to the investment backing from Samsung and SK Hynix, which provides more stable supply relationships. Marshall Choy, who has recently taken on the role of Chief Business Officer, is leading the push into the US market. The company has plans for a future IPO, although specific timing has not been disclosed.