Company record

RadixArk

Updated September 27, 2026 · Presspool

RadixArk, founded by the creators of the SGLang inference engine, builds open AI infrastructure for inference and reinforcement learning, including managed infrastructure for teams. radixark.com

Funding

Latest announced financing: $100 million, Seed, led by Accel (co-led by Spark Capital), announced May 5, 2026.

Whether AI names RadixArk

• On the AI infrastructure map: named or cited in 0 of 39 answers to Presspool's AI infrastructure questions on September 27, 2026 (ChatGPT 0 of 8, Gemini 0 of 8, Copilot 0 of 8, Google AI Mode 0 of 8, Google AI Overviews 0 of 7). See the map.
• Machine Relations Index: Cited in 0 of 16,925 Index answers, May 10, 2026 to September 26, 2026.

A company counts when an AI answer names it or cites its website. Answers vary from run to run, so each count is a dated sample.

Sources

• Own site
• Independent source

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