Korean AI semiconductor startup Rebellions has raised USD 250 million(KRW 340 billion) in Series C funding, bringing its total funding to USD 470 million(KRW 640 billion) and achieving a corporate valuation of USD 1.41 billion(KRW 1.9 trillion).

A significant highlight of this round is the participation of UK-based semiconductor IP giant Arm, which has joined as a strategic investor. With Arm’s involvement, Rebellions has not only secured large-scale capital but has also been recognized as a key partner in the global semiconductor ecosystem.

Other new investors include Samsung Venture Investment and Samsung Securities, Pegatron Venture Capital (Taiwan), InterVest, BonAngels venture partners, POSCO Investment, Jusung Engineering, HL D&I Halla (HL Group), Vision Equity Partners, KDB Capital, and Medici Investment. In addition, overseas financial investors such as Lion X Ventures, a subsidiary of Singapore’s OCBC Bank, also participated.

Existing investors reaffirmed their trust and support, including KDB (Korea Development Bank), SV Investment, Mirae Asset Venture Investment and Mirae Asset Capital, KB Investment, Korelya Capital (France), Noh & Partners with KB Securities, KT Investment, SDB Investment, Kakao Ventures, IMM Investment, and Seoul Techno Holdings.

This investment round values Rebellions at more than twice its valuation compared to its Series B closed in January last year. Within just five years since its founding, Rebellions has raised a total of USD 470 million, demonstrating that Korea’s venture capital ecosystem has the capacity to scale deep-tech startups into global unicorns.

Importantly, this marks Arm’s first-ever startup investment in the APAC region, underscoring Rebellions’ emergence as a central player in next-generation AI infrastructure. The two companies plan to collaborate on building high-performance, energy-efficient AI infrastructure.

Strategic investors capable of creating cross-industry synergies also joined this round. Pegatron, a global electronics manufacturer, will collaborate with Rebellions as a technology partner for the REBEL-Quad module and server solutions, supporting global AI infrastructure expansion. POSCO Investment, the CVC arm of POSCO, also participated, along with semiconductor equipment company Jusung Engineering and HL Group from the mobility and construction sectors, extending synergies into the emerging field of Physical AI.

With the new funding, Rebellions will prepare for mass production of its flagship REBEL-Quad product, accelerate development of new product lines including REBEL-IO, and expand globally across Japan, Malaysia, the U.S., and Europe. As the only Korean company currently mass-producing AI semiconductors, it aims to maintain technological leadership while also aggressively hiring top talent worldwide to strengthen its global Rebellions team. The company also intends to play a key role in Korea’s rise as one of the world’s top three AI powerhouses, working closely with the government and creating measurable global impact.

Shin Sung-kyu, CFO of Rebellions, who led this investment round, stated, “We are deeply grateful to all our investors who believe in the potential of K-startups and the capabilities of Korea’s AI semiconductor industry. This funding demonstrates that Korea’s capital markets possess the capacity to nurture world-class AI semiconductor companies. Rebellions will leverage this round as a springboard for growth, contributing to Korea’s emergence as a global AI powerhouse while delivering tangible results on the international stage.”