capital · May 20, 2026
E2B Raises $21M Series A Led by Insight Partners
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E2B CEO Vasek Mlejnsky announced on July 28, 2025 the $21M Series A round with participation from Decibel, Sunflower Capital, Kaya VC and angel Scott Johnston former Docker CEO. Total funding reached $32M-$43.8M across rounds for the open-source AI agent cloud infrastructure. The round supports expansion of secure sandboxes for 88% of Fortune 100 companies including Hugging Face, Perplexity and Groq. E2B founded in 2023 by Vasek Mlejnsky and Tomas Valenta in Prague now has 15 employees.
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