Best Agent Sandboxes (2026)
Where agents run safely. Discover the startups building agent sandboxes: isolated, disposable runtimes where AI agents execute code, browse the web, and use tools without touching production.
Top 13 Agent Sandboxes, ranked
Ranked by disclosed funding, growth signals and traction. Updated September 2026.
Modal69AI InfrastructureSan Francisco, United StatesHigh-performance AI infrastructure for developers building and deploying AI agents and ML workloads.
Daytona64AI InfrastructureNew York, United States$46.0MBuilds agent-native compute infrastructure.
E2B60Agentic AI$42.0ME2B is an open-source runtime for executing AI-generated code in secure cloud sandboxes, enabling AI agents to run code, analyze data, and interact with the internet securely.
Browserbase56AI InfrastructureSan Francisco, United States$67.5MCloud browser infrastructure for AI agents, run, manage and monitor headless browsers at scale.
Modal Labs50Agentic AISan Francisco, United States$693.0MAI-powered platform for building and deploying custom AI agents.
- COCodeSandbox50Developer ToolsAmsterdam, Netherlands$15.2M
Instant cloud development environments for coding, collaboration, and AI agent execution.
Canonic Security45EnterpriseTel Aviv, Israel$6.0MSaaS application security platform that profiles apps and user accounts to reduce attack surface.
SNDBOX33EnterpriseDynamic analysis platform for cybersecurity researchers leveraging ML for malware analysis.
ANY.RUN29CybersecurityTallinn, EstoniaInteractive sandbox for malware analysis and threat investigation.
- FOforeverVM10Developer Tools
API for running arbitrary, stateful Python code securely in persistent sandboxes for AI-generated code execution.
Clawcard9AIUnited StatesUnified credential system providing AI agents with virtual cards, email, and phone numbers.
Minemmo7GamingThousands of players simultaneously mine, build, and engage in PvP survival in a procedurally generated world.
- Rustywarcrimes6Gaming
A 10x Rust server focused on high-intensity, lawless gameplay with accelerated loot and fast-paced action.
About Agent Sandboxes
Frequently asked questions
What are the best Agent Sandboxes in 2026?
Leading Agent Sandboxes tracked by StartupHub.ai include Modal, Daytona, E2B. We rank 13 companies in this category by disclosed funding, growth signals and market traction, refreshed hourly.
What does this Agent Sandboxes ranking include?
This page ranks the top 13 Agent Sandboxes by funding and traction, representing $870M in combined disclosed funding. Each entry links to full funding history, team and product details.
Which of these companies has raised the most funding?
Modal Labs leads the category with $693M in disclosed funding.
How is this Agent Sandboxes ranking compiled?
Each company is scored on disclosed funding, team size, growth momentum and profile completeness, then ordered highest first. The list regenerates hourly as new funding rounds, hiring and product launches are detected, so the ranking stays current.