Raised $35M across disclosed rounds.[9][10]

Series A closed July 2025, led by Insight Partners.[1][3][5][9][11]

post-money valuation is not publicly disclosed.

Named investors include Insight Partners, Decibel Partners, Sunflower Capital, KAYA VC, Scott Johnston (angel, former CEO Docker).[1][3][5][9][11]

Václav Mlejnský, Co-Founder & CEO[10][7]

Tomas Valenta, Co-Founder & CTO[10][7]

Tereza Tizkova, Founding Member, Growth & DevRel[10][12][8]

Lev Brouk, Software Engineer (joined Nov 2025; prior: Synadia, Mattermost, Apcera, Amazon, Grand Central Networks Founding CTO)[10][12][8]

Jakub Dobry, Software Engineer (joined Jan 2025; prior: JetBrains 5.5 yrs)[10][12][8]

Modal · modal.com · Same buyer (AI/ML developers), same workflow (spinning up isolated compute environments via API for agent and model workloads), direct substitute for E2B's sandbox API in code-execution use cases.[3][4]

Daytona · daytona.io · Same product category (sandboxed execution environments for AI agents), same developer buyer, named in the same market segment as E2B in agentic infrastructure coverage.[3][9]

Fly.io · fly.io · Same infrastructure buyer (developers deploying ephemeral compute via API), overlapping workflow of fast-boot isolated VMs; E2B's tech stack references Docker and KVM, the same primitives Fly.io uses, and both compete for agent-runtime infrastructure budget.[10][7]

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