Startup
Pennylane
French accounting and financial management platform used by 350,000 companies and their accountants, built as a shared ledger between business and firm, with e-invoicing and AI at the centre of its 2026 push across Europe.
| Founded | 2020, Paris |
|---|---|
| Founders | Arthur Waller (CEO), Edouard Mascre, Felix Blossier, Quentin de Metz, Tancrede Besnard |
| Stage | Series E |
| Total funding | About $460m across 9 rounds |
| Last round | Series E, $204m (EUR 175m), January 2026, led by TCV with CapitalG, Blackstone, Sequoia and DST Global. Valuation $4.25bn. |
| What it does | Bookkeeping, invoicing, payments, expense management and reporting for SMEs, with a firm-side workspace so the accountant works in the same ledger as the client |
| Traction | 350,000 companies; around 900 staff; valuation up from $2.2bn in April 2025 to $4.25bn in January 2026 |
| Pricing | From EUR 14 a month (Basic); Essential EUR 24; Premium with full accounting module EUR 79 |
| Markets | France, expanding into Germany and the rest of Europe |
| Peers | Xero, Sage, Odoo, sevDesk, Holded, Qonto |
Why it matters
Pennylane is Europe’s most valuable accounting software startup at $4.25 billion, having nearly doubled its valuation in nine months. Its bet is the French e-invoicing mandate and a model where firm and client share one ledger, which it is now taking to Germany.
Accountio coverage
Updated September 2026.
Part of Accountio’s accounting technology coverage.
