South Korea’s Rebellions has raised $250 million in a Series C round at a $1.4 billion valuation, cementing its position as one of Asia’s fastest-growing AI chip startups. The round was backed by Arm, Samsung Ventures, Pegatron VC, Korea Development Bank, Korelya Capital, and Lion X Ventures, with Arm joining as a strategic partner to advance next-gen AI data center infrastructure.
The raise comes just over a year after Saudi Arabia’s Wa’ed Ventures, the VC arm of Aramco, led a $15 million Series B extension in July 2024. That deal marked Rebellions’ first MENA investor and paved the way for its expansion into the Kingdom, where the company has since set up a Riyadh subsidiary and deployed its first-generation ATOM™ chips.
Rebellions has already rolled out its AI inference hardware across Japan, Saudi Arabia, and the US, while powering Korea’s largest commercial AI service. The fresh funding will accelerate production of its REBEL-Quad accelerator, which the company describes as the world’s first UCIe-Advanced AI chip designed for peta-scale inference with high energy efficiency.
Founded in 2020, Rebellions is building a chiplet-based product roadmap tailored to sovereign AI infrastructure needs at a time when governments and hyperscalers are racing to secure alternatives to Nvidia hardware. With new backing from Arm and global VCs, the company plans to expand across the US, Europe, and Asia-Pacific, positioning itself as both Korea’s national AI chip champion and a rising global player.
