• South Korea’s Rebellions raised $250 million in a Series C round at a $1.4 billion valuation, backed by Arm, Samsung Ventures, Pegatron VC, Korea Development Bank, Korelya Capital, and Lion X Ventures. The deal follows earlier investment from Saudi Arabia’s Wa’ed Ventures (Aramco’s VC arm).
• Wa’ed Ventures had led a $15 million Series B extension in July 2024, marking the company’s first MENA investor and supporting Rebellions’ entry into the Kingdom’s AI infrastructure market.
• Building on this, Rebellions established a Saudi subsidiary in Riyadh and has already deployed its first-generation chips in Saudi Arabia, alongside Japan and the US, underscoring its regional traction.

Press release:

Rebellions, Asia’s fastest-growing AI inference chip company, today announced it has raised $250 million in Series C round at a valuation of $1.4 billion — accelerating Rebellions’ roadmap for efficient, large-scale AI inference.

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.

This investment will accelerate REBEL-Quad mass production and fuel the company’s expanded chiplet-based product roadmap designed to deliver energy-efficient yet powerful inference infrastructure for the world’s most demanding AI models. 

The company’s first-generation chips, ATOM™ and ATOM™-Max, are already in mass-production and deployed with customers across Japan, Saudi Arabia, and the United States, and power Korea’s largest commercial AI service. In August, Rebellions introduced its second-generation REBEL-Quad, the world’s first UCIe-Advanced AI accelerator, built to deliver peta-scale inference with unmatched energy efficiency and scalability for next-generation data centers. 

Rebellions also plans to expand its global presence in the United States, Europe, and key Asia-Pacific markets, supporting sovereign AI infrastructure initiatives and attracting leading talent in AI and semiconductors.

“As AI inference workloads continue to rise, the demand for AI chips is expanding significantly. This investment marks an important milestone in Rebellions’ journey from Korea’s national AI chip champion into Asia-Pacific’s leading AI chip startup. We are deeply grateful to our investors for their trust and confidence in our vision and potential”, said Sungkyue Shin, CFO of Rebellions.