French financial operating system combining accounting, invoicing, expenses, and banking for SMEs and their accounting firms.

Pennylane is a French company headquartered in Paris. Founded in 2020, it builds a “financial operating system” aimed at French SMEs and the accounting firms that serve them.

The platform unifies bookkeeping, invoicing, expense management, cash-flow monitoring, and a business bank account in one interface, using OCR and automated matching to cut manual data entry.

A distinguishing feature is its dual-sided design: thousands of accounting firms use it as a practice-management and client-collaboration tool, not just a bookkeeping app for end businesses.