Rebellions
AI that Scales, without the Energy Burn.
Seongnam, South Korea · Founded 2020 · $923.5M raised
- Headquarters
- Seongnam
- Employees
- 201–500
- Founded
- 2020
- Business Model
- B2B
- Website
- rebellions.ai
- Total Funding
- $923.5M
- Last Round
- $400.0M Venture RoundMar 2026
- Rounds
- 5
About
Rebellions is a South Korean AI chipmaker founded in September 2020, headquartered in Seongnam, Gyeonggi-do, Korea. The company designs neural processing units (NPUs) optimized for AI inference workloads including large language models and multimodal AI. Its chip lineup includes ION (2021, finance-focused), ATOM (2023, datacenter inference), and REBEL (2024, UCIe-Advanced chiplet with 144GB HBM3E). In December 2024, Rebellions merged with SK Sapeon, consolidating South Korea's AI semiconductor capabilities. The company has raised over $400 million including a $250 million Series C backed by Arm and Samsung. Rebellions has offices in Korea, the United States (Santa Clara), Japan, and Saudi Arabia.
Summary
Rebellions is a Semiconductors company based in Seongnam, South Korea, founded in 2020. It has raised $923.5M in total across 5 rounds, most recently a $400.0M Venture Round round in Mar 2026. Investors include ARM.
Tech & App Stack
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Funding History
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Mar 2026
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Series A through Venture Round — per-round amounts, valuations, and who invested in each round.
Investors
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