E2B
Cloud-based code-execution sandbox for AI agents. Used by AI products that need to run code generated by LLMs.
- Location
- San Francisco, United States
- Raised
- $11M+
- Stage
- Seed
- Founded
- 2022
- Category
- AI
- Funding
- VC-backed
- Team
- 11-50
Funding figures as of Jul 2025 · not independently verified
Founders of E2B
- Vasek Mlejnsky
- Tomas Valenta
Investors backing E2B
- Sunflower Capital
- Decibel
- Y Combinator
Frequently asked questions
What does E2B do?
Cloud-based code-execution sandbox for AI agents. Used by AI products that need to run code generated by LLMs.
Where is E2B based?
E2B is based in San Francisco, United States.
When was E2B founded?
E2B was founded in 2022.
How much has E2B raised?
E2B has raised $11M+ in their Seed round as of Jul 2025.
Who founded E2B?
E2B was founded by Vasek Mlejnsky, Tomas Valenta.
Who has invested in E2B?
E2B is backed by Sunflower Capital, Decibel, Y Combinator.
How E2B would pitch themselves
● Editorial01Target customer
AI product teams building agents that execute code — coding agents, data-analysis agents, browser agents — needing isolated, fast, secure sandboxes.
02Problem they solve
AI agents need to run generated code somewhere safe. Building secure execution infra is hard (containers + isolation + filesystem mgmt). Most AI products skip it, limiting capability.
03Key differentiator
Purpose-built sandbox for agentic AI — sub-200ms startup, full Linux env, secure isolation. Already the default infra for code-interpreter-style AI products.
04Go-to-market strategy
Developer-first PLG (free tier + open-source SDK). Strong AI-builder community marketing (X + open-source). Usage-based pricing scales with agent volume.