Billionaire Profile
Konstantin Sixt
Global Rank
#2447

Image: Historisches Archiv der Stadt Köln | Public domain | via Wikimedia Commons

Konstantin Sixt

CEO, Car rentals
GERMANY
Real-Time Net Worth
$1.682B
Estimated based on Car rentals stock value as of April 20, 2026
-1.05% (24h)
Age
43
Source
Car rentals
Industry
Automotive
Citizenship
GERMANY

Biography

Konstantin Sixt, co-CEO of Sixt SE, embodies the entrepreneurial spirit of the family-run car rental giant. Born in 1982, he joined Sixt in 2005, quickly making his mark by heading the company's online business and later taking over as Head of German Sales. Since 2021, he has been co-CEO alongside his brother, Alexander Sixt. With a net worth of $1.5 billion, Konstantin has played a key role in transforming Sixt into a global mobility leader, leveraging technology and innovation to drive growth in the automotive industry. His career is defined by his commitment to innovation, and expanding Sixt's market presence.

Fact Checked
Verified by Editorial Team
Live Data
Updated 4/20/2026

Wealth Over Time

In-Depth Profile

Early Life and Education

Konstantin Sixt was born in Munich in 1982. He pursued higher education in Geneva, Paris, and London, earning a Master of Science in International Accounting and Finance from City University (CASS Business School) in London. This academic foundation equipped him with the skills needed to thrive in the family business.

Rise to Success

Konstantin joined Sixt SE in 2005, taking charge of the company's online business. This marked the beginning of his ascent within the company. In 2013, he became the Head of German Sales, further expanding his responsibilities. In February 2015, he was appointed to the Management Board, overseeing national and international sales, as well as the global e-commerce operations. In June 2021, he was appointed Co-CEO with his brother Alexander Sixt.

Key Business Strategies

Under Konstantin's leadership, Sixt has emphasized innovation and technological integration to enhance customer experience and expand its global reach. He is responsible for marketing, international Franchise Development & Business to Partners and SIXT+. Sixt's success is also attributed to a strong focus on premium vehicles, a customer-centric approach, and the expansion of its digital platform.

Philanthropy

Konstantin Sixt is involved in the Regine Sixt Children's Aid Foundation DRYING LITTLE TEARS, which supports children's aid projects worldwide in areas like education, health, and emergency aid.

Career Milestones

2005

Joined Sixt SE

Began working for Sixt, taking responsibility for the company's online business.

2013

Head of German Sales at SIXT Autovermietung

Assumed leadership of German sales operations.

2015

Management Board Appointment

Appointed to the Management Board, overseeing national and international sales, as well as global e-commerce.

2021

Co-CEO of Sixt SE

Appointed Co-Chairman of the Management Board of Sixt SE, with his brother Alexander.

Philanthropy & Social Impact

Children's Aid

Regine Sixt Children's Aid Foundation DRYING LITTLE TEARS

Undisclosed

Supports children's aid projects worldwide in education, health, welfare, and emergency aid.

Business Philosophy & Leadership

Leadership Principles

Prioritize and set your goals, but give freedom to ensure responsibility.

Sixt's leadership principles involve giving employees freedom and responsibility.

Hire and develop top talent for the future to build great, skilled and diverse teams.

Sixt's leadership principle is to assemble and nurture a dream team.

Controversies & Challenges

2022

Data Breach

Sixt Rent a Car faced a class action lawsuit due to a cyberattack that compromised the personal information of thousands of employees. This included names, dates of birth, health information, Social Security numbers, and financial account details.

2025

Damage Fee Lawsuit

Sixt agreed to an $11 million settlement over unfair damage charges, which many customers claimed were unjustified.

2016

Consumer Complaints

Sixt Rent a Car has faced complaints regarding excessive fees, damage charges, and bait-and-switch advertising.