Infrastructure for RL: sandboxes, compute and training platforms
The companies that sell what RL runs on: sandboxed machines an agent can act in, compute for rollouts, and platforms to train models with reinforcement learning.
8 confirmed · 0 not yet confirmed · snapshot 2026-10-11 · type to filter, click a header to sort
Who sells infrastructure
The companies that sell what RL runs on: sandboxes, compute and training platforms. The table below lists every company.
The companies that sell what RL runs on: sandboxes, compute and training platforms.
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How to read it
Star, based here: a vendor, in the realm of the domain it leads with. The logo is the vendor's; the glow is what it leads with selling.
Outpost: a ring on a realm's edge for a vendor based elsewhere that also covers that domain. A lane runs home.
Moons: the other things it sells. Hollow while it is still expanding into them.
Click any star for the lines from its own website that put it there.
How to read it
Star, based here: a benchmark, in the realm of the domain most of its tasks are in. The logo is the vendor that built it.
Outpost: a benchmark based in another realm that also tests this domain.
Click any star for the line from its own page or paper that put it there.
| Tier | Company | Funding | Domains |
|---|---|---|---|
| S |  Prime Intellect Prime Intellect sells an open-source-first stack for agentic RL: the Environments Hub (2,500+ community… | $150M | Coding Enterprise Workflows Long-Horizon Math |
| S |  Modal Modal (Modal Labs) is a New York-based, Python-native serverless cloud for AI workloads. It offers on-demand… | $111M | Coding |
| A |  Daytona Verified Daytona provides secure, elastic, programmatic sandboxes (Linux containers, Linux and Windows VMs, and GPU… | $31M | Coding Computer Use |
| A |  E2B Verified E2B provides open-source Firecracker-microVM sandboxes for AI agents. It is offered as a hosted API, as BYOC,… | $32.5MPioneer | Coding Computer Use |
| B |  Veris AI Veris AI sells simulation sandboxes that recreate an agent's production environment (mocked SaaS tools, seeded… | $8.5M | Enterprise Workflows |
| B | HUD Verified METR, AWS, Hume | $16MY Combinator W25 | Long-Horizon Coding Computer Use Enterprise Workflows |
| C |  BenchFlow Verified Berkeley, Tesla | Enterprise Workflows Browser Coding Computer Use | |
| C |  Cua Verified Microsoft, Twitter | Y Combinator X25 | Coding Computer Use |
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