Rebellions Secures $250M Funding at $1.4B Valuation with Arm Holdings as Strategic Partner

Rebellions Inc., a South Korean AI chip startup, has raised $250 million in a Series C funding round at a valuation of $1.4 billion. Investors include Arm Holdings, Samsung Ventures, Pegatron Corp., and Lion X Ventures. The funds will be used to mass produce the chip and accelerate product development in a competitive AI market. Arm has also joined as a strategic partner to accelerate innovation for next-generation data center infrastructure.

Rebellions Inc., a South Korean AI chip startup, has raised $250 million in a Series C funding round, securing a valuation of $1.4 billion. The funding round, which closed on September 29, 2025, was led by investors including Arm Holdings Plc, Samsung Ventures, Pegatron Corp., and Lion X Ventures Pte AI Chip Startup Rebellions Gets Funds at $1.4 Billion ...^[1]. Existing backers such as the Korea Development Bank and Korelya Capital also participated.

The funds will be used to mass produce the company's chip and accelerate product development in a competitive AI market. Arm Holdings has joined as a strategic partner to accelerate innovation for next-generation data center infrastructure AI Chip Startup Rebellions Gets Funds at $1.4 Billion ...^[1].

Rebellions Inc. is one of several players competing to deliver AI infrastructure on a global scale. The funding round comes amidst a broader AI chip frenzy, with NVIDIA's $100 billion investment in OpenAI sending its stock to record highs and fueling antitrust concerns AI Stocks Frenzy: Nvidia’s $100B Bet & Other Big Moves Ignite Markets (Sept 28–29, 2025)^[2].

The AI chip market has seen significant growth and investment in recent months, with major players like Google and Microsoft reporting strong AI-related revenue and capex plans. Google's parent Alphabet hit a $3 trillion valuation on revived AI optimism, while Microsoft reported booming Azure growth and a record $30 billion capex plan AI Stocks Frenzy: Nvidia’s $100B Bet & Other Big Moves Ignite Markets (Sept 28–29, 2025)^[2].

However, the AI chip market is not without its challenges. Regulatory scrutiny and geopolitical tensions, such as U.S. export curbs on advanced chips, have impacted major players like Samsung and SK Hynix AI Stocks Frenzy: Nvidia’s $100B Bet & Other Big Moves Ignite Markets (Sept 28–29, 2025)^[2]. Despite these challenges, the AI chip market remains a high-growth area, with analysts forecasting significant future growth.

In summary, Rebellions Inc.'s Series C funding round is a significant development in the AI chip market. The startup's strategic partnership with Arm Holdings and the substantial funding will enable it to compete more effectively in the global AI infrastructure market.