ThirdLayer

ThirdLayer is solving one of the hardest problems in deploying agents: AI models are generic, but people's work and processes are specific.

The problem

Every organization runs on knowledge that lives in people's heads. Who to loop in, where information lives, how decisions actually get made. This knowledge is siloed across individuals, scattered across tools, and impossible to hand off cleanly. When you try to delegate work to an AI agent today, it has no understanding of any of this. It doesn't know your team, your tools, or how things actually get done.

What we're building

We believe the company that owns both the agent and the process understanding layer will define how AI gets deployed in the real world. That's what we're building.

Our platform continuously learns how your organization operates by observing real work as it happens. It captures the context, decisions, and workflows that define your processes, and keeps that understanding current as things change. This is the foundation that makes agents actually useful for long-running, knowledge-intensive tasks.

Dex is our generally available product, a browser extension that embeds within your computer and team, ingesting a continuous stream of data across your browser and work apps to understand how you actually operate. By learning directly from real-world, first-party task execution, Dex captures action memory, learns your workflows, and builds the context layer that makes real delegation possible. Underneath Dex is our context engine, a broader platform for organizational process understanding that powers everything we do.

Join us.

Our team comes from top universities and frontier labs across the world, and we are fortunate to be backed by advisors and collaborators in research and design from MIT Media Lab, Stanford SAIL, Berkeley BAIR, Sakana AI, DeepMind, and Eleven Labs.

We're a deeply technical team with a high bar for talent and a shared belief that exceptional people are the foundation of everything we build.