HASH safely enables critical decisions to be made at lightspeed


We're HASH. Based in London and New York, our mission is to ensure that everyone has the information, tools, and education they need to make the best decisions possible. Through development of an open-source platform for simulation, our goal is to eliminate information failure.

33 Irving Place
Union Square, NYC
10003, USA

+1 (917) 979-5539

68-80 Hanbury St
E1 5JL, UK

+44 1678 552995


We're an open-source company in every sense. From our H-Core simulation engine, to the processes and controls we use internally, we believe that operating transparently best supports sustainable growth and assures users of our mission in the first place.


David is the CEO and founder of HASH. He was previously Managing Partner of data-driven software development consultancy Soho Strategy and sits on the management committee of the UK's Information Assurance Advisory Council. Read more ›

Jude is CTO and co-founder of HASH. Previously he was the Chief Technology Officer at Fog Creek Software. Read more ›


Joel Spolsky

Joel is Chairman of the Board at HASH. He is the CEO and founder of Stack Overflow, and co-founder of Trello and Glitch. Read more ›

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If you're interested in getting involved, see our current to find out more about life at HASH.