Valentin Stalf

"We now need to catch up again," Valentin Stalf said of N26 in 2025, the year he gave up the chief executive seat of the branch-free bank he had spent a decade building to outrun incumbents.¹ Stalf is the co-founder and, through September 2025, chief executive officer of N26, a German mobile-only "neobank," meaning a fully licensed digital bank that operates entirely through a smartphone app with no physical branches and serves customers across Europe. He built the company with a single co-founder over more than a decade, scaling it into one of Europe's most prominent digital banks before stepping back from day-to-day operations in 2025.

Background

Stalf was born on 4 October 1985 in Vienna, Austria. He studied at the University of St. Gallen in Switzerland, earning a bachelor's in business administration and management and then a master's in accounting and finance, graduating in 2012.² His studies included exchange programs at Sophia University in Tokyo and the Vienna University of Economics and Business. While still a student he took on early roles in investment banking and mergers and acquisitions at Deutsche Bank and in strategy consulting at Roland Berger.

After graduating, Stalf joined Rocket Internet, the German company-builder and incubator founded by the Samwer brothers, as an Entrepreneur-in-Residence. There he helped build the mobile-payments ventures Payleven and Paymill. Rocket Internet's build-fast, pattern-recognition model of venture creation shaped his approach: rather than starting from a single novel insight, he learned to spot an emerging market wave early and execute against it quickly.

Getting started

In February 2013, Stalf co-founded a fintech startup with his longtime friend Maximilian Tayenthal. The company was initially incorporated as Papayer GmbH and was quickly renamed Number26. In January 2015, Number26 launched its first mobile- and web-based banking product in Germany and Austria, aiming to be a mobile-first, branch-free bank built around a clean app experience at a time when incumbent banks' app strategies lagged years behind. In July 2016, the company received a full European banking license from BaFin, Germany's financial regulator, and rebranded from Number26 to N26.³

What he built

N26 grew quickly. By March 2017 it reported 300,000 users across 17 markets. In 2018 it raised significant investment, gained full UK authorization backed partly by Peter Thiel's Valar Ventures, and was named a unicorn with a reported valuation of around 3.5 billion dollars that September. The company launched in the United States in 2019 and reached 5 million users in January 2020. In October 2021 it raised 900 million dollars in a round valuing N26 at 9 billion dollars, per TechCrunch, making it Germany's most valuable fintech startup at the time, with more than 7 million customers across 25 countries.³

Reported figures for total funding range from over 1.8 billion dollars to around 1 billion euros depending on the source and date. Investors across its rounds included Insight Venture Partners, GIC, Tencent, Allianz X, Valar Ventures, Horizons Ventures, Earlybird Venture Capital, Battery Ventures, and Redalpine Ventures.

The growth came with setbacks. N26 exited the UK market in February 2020, citing Brexit, and exited the US market in November 2021 to refocus on Europe. BaFin fined the company 4.25 million euros over deficiencies in internal controls and imposed a cap limiting new customer acquisition to 50,000 per month. Italy's central bank barred new account openings in spring 2022 over anti-money-laundering shortcomings. BaFin fined N26 a further 9.2 million euros in 2024 for delayed suspicious-transaction reporting, but lifted the multi-year growth cap the same year.³ By 2025 N26 was present in 24 European markets, with company scale reported at roughly 2,200 or more employees, up from around 900, though precise employee figures vary by source and date.

How he operates

Stalf operated N26 under a joint co-CEO structure with Maximilian Tayenthal for the company's entire history. He has described his ambition, in his own TechCrunch biography and in N26 materials, as building "a bank that the world loves to use," a phrase echoed in the company's ten-year-anniversary posts.³

Stalf believes sustainable pace matters more than raw hours for long-term founder endurance, and he has publicly pushed back on extreme hustle culture of the "996" variety, arguing that founders need to last.¹ The catch-up remark landed in a year of investor tensions around the dual-leadership structure, sharpened by the regulatory scrutiny, which contributed to his decision to step back from the operating role.

Where things stand

In August 2025, Stalf announced that he would step back from day-to-day operations, resigning the co-CEO role and moving to N26's Supervisory Board after a roughly six-month transition, amid investor pressure following BaFin's regulatory critique. As of that announcement, Stalf and Tayenthal together still retained roughly one-fifth of N26's equity, and an ex-central banker was reported set to chair the company in the ensuing leadership shake-up.¹ Stalf lives in Berlin and has served since 2018 as a member of the advisory board of WU Vienna. As of publication he is transitioning off the operating role he held for the company's entire life.

Key facts

• Co-founded N26 in February 2013 with longtime friend Maximilian Tayenthal, a two-founder team that stayed intact for over a decade; the company was first incorporated as Papayer GmbH, then Number26.
• Was a Rocket Internet Entrepreneur-in-Residence who worked on Payleven and Paymill before starting N26, a direct lineage from Germany's best-known startup factory to a prominent European neobank.
• Grew N26 from 300,000 users in 2017 to more than 7 million in 2021 and a reported 9 billion dollar valuation in under five years.
• Pulled N26 out of both the UK (2020) and US (2021) markets to refocus on Europe.
• Faced regulatory friction in his final years: two BaFin fines of 4.25 million and 9.2 million euros and an Italian central-bank account-opening ban, which contributed to his August 2025 departure from the CEO seat.
• Named "Entrepreneur of the Year" by the University of St. Gallen in 2018 and "Young Entrepreneur of the Year" by Handelsblatt and Frank Thelen the same year.