Rebellions
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Founders
About
Rebellions is a South Korean fabless AI chip startup founded in September 2020 by Sunghyun Park, Jin-wook Oh, Hyo-eun Kim, and Sung-ho Shin 12. The company designs AI inference accelerators — chips optimized for the compute required for AI models to respond to user queries — while outsourcing fabrication 1. Rebellions develops the Rebel100 NPU platform and recently launched RebelRack and RebelPOD, vertically integrated AI infrastructure systems 3. The company’s software stack integrates with open-source tools including vLLM, PyTorch, and Hugging Face 3. Rebellions is headquartered in Seoul, South Korea, with expanding U.S. operations 3. The company is a central part of the South Korean government’s “K-Nvidia” initiative to boost the country’s domestic AI semiconductor sector 1.
Funding History
| Round | Date | Amount | Valuation | Lead Investor | Key Co-Investors |
|---|---|---|---|---|---|
| Series B | Jan 2024 | $124M | N/A | KT | N/A 4 |
| Series C | Nov 2025 | $250M | $1.4B | Arm | Samsung Ventures, Pegatron VC 5 |
| Pre-IPO | 2026-03-30 | $400M | $2.34B | Mirae Asset Financial Group, Korea National Growth Fund | Korea Development Bank, Korelya Capital, Lion X Ventures, Aramco 13 |
Total raised: $850M, with $650M raised in the last six months 1. The Korea National Growth Fund contributed approximately 250 billion Korean won (~$165M), marking the first direct government investment under South Korea’s “K-Nvidia” initiative 1. Mirae Asset has been an investor since the Series A 3. The company plans to IPO later in 2026 1.
Known investors across all rounds include: Mirae Asset Financial Group, Korea National Growth Fund, Arm, Samsung, SK Hynix, SK Telecom, KT (Korea Telecom), Aramco, Kindred Ventures, Top Tier Capital, Korea Development Bank, Korelya Capital, Lion X Ventures, and Pegatron VC 1235.
What Investors Say
“Mirae Asset has supported Rebellions since its Series A, driven by strong conviction in its potential.” — Eung-Suk Kim, CEO of Mirae Asset Venture Investment 3
What Founders Say
“AI is now measured by its ability to operate in the real world — at scale, under power constraints, and with clear economic return.” — Sunghyun Park, Co-Founder and CEO 3
“Organizations are looking for infrastructure that works within existing environments and enables new revenue-generating AI applications.” — Marshall Choy, Chief Business Officer 3
Sources
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TechCrunch, “AI chip startup Rebellions raises $400 million at $2.3B valuation in pre-IPO round,” March 30, 2026. https://techcrunch.com/2026/03/30/ai-chip-startup-rebellions-raises-400-million-at-2-3b-valuation-in-pre-ipo-round/↩↩↩↩↩↩↩↩
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Wikipedia, “Rebellions (company),” accessed March 2026. https://en.wikipedia.org/wiki/Rebellions_(company) ↩↩
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PR Newswire, “Rebellions Closes $400 Million Pre-IPO and Launches RebelRack and RebelPOD to Accelerate Global Expansion,” March 30, 2026. https://www.prnewswire.com/news-releases/rebellions-closes-400-million-pre-ipo-and-launches-rebelrack-and-rebelpod-to-accelerate-global-expansion-302728631.html↩↩↩↩↩↩↩↩↩
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CNBC, “Samsung-backed AI chip firm Rebellions raises $400 million ahead of IPO,” March 30, 2026. https://www.cnbc.com/2026/03/30/ai-chip-startup-rebellions-raises-400-million-ipo.html↩
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Rebellions Newsroom, “Rebellions Raises $250 Million to Advance the Next Generation AI Infrastructure, Backed by Arm and Samsung,” September 2025. https://rebellions.ai/newsroom/rebellions-raises-250-million-to-advance-the-next-generation-ai-infrastructure-backed-by-arm-and-samsung/↩↩