Company

About Causal64: Mahé Chadeffaud and Hugo Marotin

Causal64 builds software, data systems, machine learning models and forecasts for companies and public bodies.

Last updated 9 November 2026

The business

Causal64 is the trade name of Mahé Chadeffaud, a sole proprietor registered in France under the micro-enterprise regime and based in Annecy. SIREN 109 270 363 identifies the business. The full statutory details are in the legal notice.

We answer public tenders and work for private clients. Each engagement is set out in a written proposal or contract concluded in the name of Causal64, that is in the name of Mahé Chadeffaud as sole proprietor.

People

Mahé Chadeffaud, founder

Econophysics, machine learning and software. Mahé runs the business, leads the projects and signs the contracts. LinkedIn.

Hugo Marotin, co-founder

Econophysics, quantitative finance and machine learning. Hugo works on Causal64 projects as an independent business and invoices Causal64 for his work. “Co-founder” describes his part in building the work shown on this site; Causal64 is not a company jointly owned by the two of them. Hugo may contact clients, answer tenders and sign documents in the name of Causal64 within the limits of a written mandate given by Mahé Chadeffaud; he does not act in his own name for Causal64. LinkedIn.

What the site shows

The example websites and apps on this site were built by us to show the kind of work we deliver. They run on generated data and contain no client information. The research notes describe our methods.

Contact

For a project, a tender or any question, write to contact@causal64.com.