Billionaire Profile
Konstantin Sixt
Global Rank
#2366

Image: Public domain | via Wikimedia Commons

Konstantin Sixt

CEO, Sixt SE
DE
Real-Time Net Worth
$1.6B
As of December 2025
Age
43
Source
Car rentals
Industry
automotive
Citizenship
DE

Biography

Konstantin Sixt, born in 1982, is the Co-CEO of Sixt SE, a global mobility service provider. His wealth stems from his significant ownership in Sixt, a car rental company founded by his grandfather in 1912. Sixt SE operates in over 100 countries, offering car rental, car sharing, ride-hailing, and subscription services. Konstantin, along with his brother Alexander, has driven the company's digital transformation and expansion. He holds an MSc in International Accounting and Finance from Cass Business School, London. As of 2024, the Sixt Group achieved consolidated revenue of EUR 4.00 billion.

Wealth Over Time

In-Depth Profile

Early Life

Konstantin Sixt was born in Munich, Germany in 1982. He is the son of Erich Sixt, who transformed Sixt into a global player, and Regine Sixt. Konstantin studied in Geneva, Paris, and London. He earned an MSc in International Accounting and Finance from Cass Business School (City University), London.

Rise to Success

Konstantin Sixt joined Sixt SE in 2005 and initially managed the company's online business. He took over as Head of German Sales at SIXT Autovermietung in 2013. In February 2015, he was appointed to the Management Board, responsible for national and international sales and the company's global e-commerce business. Since 2020, he has also been responsible for revenue management. In June 2021, Konstantin and his brother Alexander were appointed Co-Chairmen of the Management Board and Co-CEOs of Sixt SE.

Key Business Strategies

Konstantin Sixt has been instrumental in Sixt's digital transformation, leading the company's expansion into new digital business models. Under his leadership, Sixt has integrated various mobility services, including car rental, car sharing, and ride-hailing, through its ONE platform and SIXT app. He is currently responsible for marketing, international Franchise Development & Business to Partners, and SIXT+.

Philanthropy

Konstantin's mother, Regine Sixt, founded the Regine Sixt Children's Aid Foundation, the official Corporate Social Responsibility (CSR) program of Sixt SE, which supports projects for children in need worldwide.

Career Milestones

2005

Joined Sixt SE

Assumed responsibility for Sixt's online operations.

2013

Head of German Sales

Took over as Head of German Sales at SIXT Autovermietung.

2015

Management Board Appointment

Appointed to the Management Board, responsible for national and international sales and global e-commerce.

2020

Revenue Management

Assumed responsibility for revenue management.

2021

Co-CEO

Appointed Co-Chairman of the Management Board and Co-CEO of Sixt SE.

Controversies & Challenges

2025

High Turnover and Toxic Work Environment

Sixt has experienced high turnover and complaints of a toxic work environment.