
E2B, a leading provider of open-source cloud infrastructure tailored for AI agents, has secured $21 million in a Series A funding round. The round was led by Insight Partners, a global software investor, with support from Decibel, Sunflower Capital, and Kaya. The round also included notable angel investors, such as former Docker CEO Scott Johnston. The company plans to use this funding to accelerate its cloud offerings and expand its enterprise engineering and sales teams.
The Series A investment highlights the growing demand for cloud infrastructure designed to meet the specific needs of AI agents. E2B’s platform offers secure sandboxes that can rapidly deploy complex workflows, making it a valuable solution for top enterprises. The company’s cloud services have already been adopted by 88% of Fortune 100 companies.
AI agents are increasingly integral to enterprise operations, but the infrastructure to support these agents often doesn’t meet the unique demands of scaling agent-driven tasks. E2B’s specialized cloud platform addresses this gap by providing secure, scalable environments where AI agents can perform multi-step tasks, manage workflows, and access advanced features. This is crucial for large enterprises looking to deploy AI solutions effectively.
“The expectations we have from AI agents in the enterprise are great. However, we expect them to scale and perform on legacy infrastructure not designed for agentic use,” said Vasek Mlejnsky, Co-founder and CEO of E2B. “E2B solves this by equipping AI agents with safe, scalable, highly performant cloud infrastructure as well as tools that help agents scale in production.”
With this investment, E2B plans to continue enhancing its open-source platform, making it a universal standard for AI agent infrastructure. The company will also expand its offerings by developing new enterprise-grade modules such as secrets vaults and monitoring tools.
In addition to enhancing its product, E2B aims to grow its market presence and build out its engineering and sales teams globally to meet increasing demand. The company’s goal is to become the go-to solution for businesses looking to scale AI-driven workflows securely and efficiently.
Founded by Vasek Mlejnsky, E2B specializes in providing open-source cloud sandboxes designed for AI agents. The platform enables AI systems to perform a wide range of tasks, such as generating reports or building websites, all within secure, scalable environments. E2B is trusted by leading AI innovators such as Hugging Face, Perplexity, Groq, and Manus, as well as major enterprises.
As the demand for AI continues to grow, E2B’s ability to provide a safe, open-source infrastructure solution for enterprise-level AI deployments has made it a key player in the space. With a vision to define the future of agent-driven enterprise productivity, E2B is positioning itself as an essential tool for scaling AI adoption.
Insight Partners, which led the Series A funding round, has been a prominent investor in high-growth tech companies. The firm’s Managing Director, Praveen Akkiraju, shared his enthusiasm for E2B’s potential: “Insight Partners is excited to back E2B's visionary team as they pioneer essential infrastructure for AI agents.”
Other investors in the round include Decibel, Sunflower Capital, and Kaya, who, along with the support of prominent angel investors, have expressed confidence in E2B’s mission to redefine how enterprises deploy and scale AI agents.



