Pennylane

Pennylane is Pennylane SAS’s flagship cloud accounting product, used by ~90,000 SMBs and 4,000 accounting firms primarily across France, Germany, and Italy. It combines bookkeeping, bank-feed reconciliation, accounts payable and receivable, expense management, and reporting in one workspace, with a parallel portal for accountants to review and post entries.

The product is built for the French and continental tax-and-FEC stack — VAT declarations, FEC export, e-invoicing, and the upcoming PA mandates — and pairs with a network of partner accounting firms. The €175M TCV/Blackstone Series E in January 2026 funded an expanded AI assistant and faster expansion into the German and Italian SME markets.

Pennylane SAS is a Paris-headquartered cloud accounting and financial-management platform serving accountants and the SMEs they advise. Founded 2020 by Arthur Waller, Edouard Mascre, Felix Blossier, and Quentin de Metz; Waller is CEO. SIREN 852 287 583. The product combines accounts-receivable, accounts-payable, expense, and reporting flows with a portal accountants can collaborate on.

The company closed a €175M Series E led by TCV with Blackstone Growth in January 2026 at a $4.25B valuation; existing backers Sequoia, DST Global, Meritech, and CapitalG followed. A 2026 governance charter explicitly preserves founder voting control through the round. Around 90,000 SMBs and 4,000 accounting firms use the platform across France, Germany, and Italy.