Formance

Formance provides an open-source, double-entry programmable ledger, with modules for connectivity to PSPs and banks, payment flows, and reconciliation. Money flows are modeled in its Numscript DSL, and the core ledger is published under the MIT license, with self-hosted or managed deployment options.

Its product targets engineering, product, finance and operations teams building money-movement products. The website lists an open-source tier and an enterprise tier sold as an annual subscription with custom quotes. Named customers include Liberis, Doctolib, Payflip, Shares, Silverflow, Mews, Bastion, Deriv, Tembo and Stables.

The website states that the company has offices in London, Paris and New York, and that its co-founders are CEO Anne-Sybille Pradelles and CTO Clément Salaün. Open roles on the site are for Solutions Engineers (New York and Paris) and Account Executives (New York). The website does not state a founding year or headcount.

Product: Open-source double-entry programmable ledger with Numscript DSL, connectors, flows, wallets and reconciliation modules, plus an enterprise subscription.