SpaceX early investor backs Rebellions in $400M round to scale AI inference infrastructure -- TFN

Seoul-based Rebellions has raised $400 million in a pre-IPO funding round led by Mirae Asset Financial Group and the Korea National Growth Fund.

This latest round follows a $250 million Series C that initially closed in September 2025 and was fully completed in November 2025, bringing the company's total funding to $850 million and valuing it at around $2.34 billion. In the past six months, Rebellions has raised $650 million, underscoring strong investor appetite for AI infrastructure.

Founded in Seoul in 2020 by Park Sung-hyun, Oh Jin-wook, Kim Hyo-eun, and Shin Sung-ho, Rebellions focuses on AI inference infrastructure, which helps companies run AI models efficiently after they are trained. The founding team started the company to address the gap between cutting‑edge AI models in research and the practical constraints of running them in production, where cost, power, and operational complexity often limit real‑world deployment.

The company has built a cloud‑native AI platform that integrates with popular open‑source tools such as PyTorch, Hugging Face, Triton, and Kubernetes, allowing developers to deploy AI models easily without being locked into a single‑vendor system. Its approach is software‑driven, making infrastructure easier to manage and scale across different environments.

Alongside the new funding, Rebellions has launched two products: RebelRack and RebelPOD. RebelRack is a ready‑to‑use unit for AI inference, while RebelPOD combines multiple racks into a larger system for large‑scale deployments. Both are built on the company's Rebel100 chip and optimised for performance, cost efficiency, and power usage.

Rebellions is now focusing on expanding into the US, where demand for AI infrastructure is rising across cloud providers, telecom companies, and government‑backed projects. The expansion is being led by Chief Business Officer Marshall Choy, who joined the company in November 2025 to drive global growth.

With fresh capital, new products, and expansion plans, Rebellions is preparing for its next phase of growth, including a potential IPO later in 2026. The company aims to build infrastructure that allows organisations to run AI efficiently at scale, without being limited by cost, power, or system complexity