HASH enables accurate prediction in ‘impossible to model’ scenarios and allows critical decision making to occur safely at lightspeed

Welcome to the simulation

We’re HASH. Based in London and New York, our mission is to improve imagination, and enable everybody to make the right decisions. We believe we can overcome bounded rationality by making powerful simulation universally accessible to all.

The HASH platform

HASH is building an end-to-end solution for simulation-driven decision making.


Our in-browser app for quickly creating, visualizing and exploring simulations of complex systems. Get started »


Simulations run on the hEngine which unlocks massive scalability and performance. Open-sourcing soon.


Automatically optimize and efficiently distribute simulations with zero effort, setup, or additional code.


A community for sourcing, sharing, forking and building simulations and their components. Browse now »

Our mission

Simulations are connective tissue for human and machine learning, both machine-readable representations of real world problems as well as qualitatively rich and understandable by people. Find out what's new and what's next on our roadmap.

Join us

We’re looking for brilliant people all over the world. You can find out more about life at HASH and the roles we're recruiting for on our current opportunities page, and register an interest in our mission even if there is no immediate obvious fit.