Billionaire Profile
Sebastian Kulczyk
Global Rank
#2019

Image: Public domain | via Wikimedia Commons

Sebastian Kulczyk

CEO, Kulczyk Investments
PL
Real-Time Net Worth
$1.79B
As of December 2025
Age
45
Source
Diversified
Industry
finance-investments
Citizenship
PL

Biography

Sebastian Kulczyk is a Polish billionaire businessman and international investor primarily focused on the new technology sector. Born in Poznań, Poland, on November 16, 1980, he is the son of the late Jan Kulczyk, once the richest man in Poland. Kulczyk currently serves as the President of Kulczyk Investments, an international investment house. His source of wealth is diversified, with interests spanning finance, investments, and new technologies. His career includes founding the interactive marketing agency GoldenSubmarine and Manta Ray VC, a venture capital fund investing in new technologies. As of November 30, 2025, his net worth is estimated at $1.79 billion. He is also known for his philanthropic efforts, notably through the Pho3nix Foundation, which supports young people in pursuing sports careers.

Wealth Over Time

In-Depth Profile

Early Life

Sebastian Tomasz Kulczyk was born in Poznań, Poland, on November 16, 1980. He is the son of Jan Kulczyk, a prominent Polish businessman who was once the richest man in Poland, and Grażyna Kulczyk. He attended the Karol Marcinkowski High School No. 1 in Poznań.

Rise to Success

Kulczyk's career began at age 19 when he started a network of internet cafes called e24.pl. He later founded GoldenSubmarine, an interactive marketing agency. He gained experience working for Lazard investment bank in London and in the digital media unit of Sony BMG in New York. In December 2013, he became the president of Kulczyk Investments, succeeding Dariusz Mioduski. He also founded Manta Ray VC, which invests in new technologies.

Key Business Strategies

Kulczyk's investment strategy focuses on the new technology sector, with a focus on European companies. He has made significant investments in Polish startups through projects like the InCredibles program. He also initiated the introduction of Singularity University to Poland. Kulczyk's strategy includes divesting from traditional assets to focus on technology-driven ventures, and he took the chemical business Ciech private, renaming it Qemetica in 2024.

Philanthropy

Sebastian Kulczyk is involved in philanthropy through the Pho3nix Foundation, a global social organization supporting children and young people in sports.

Career Milestones

2009

Lazard Investment Bank

Worked at Lazard investment bank in London.

2010

Sony BMG

Worked in the digital media unit of Sony BMG in New York.

2013

President of Kulczyk Investments

Became President of Kulczyk Investments.

2015

Chairman of CIECH Supervisory Board

Became Chairman of the supervisory board of chemical company CIECH.

2018

Divested Assets

Divided assets with his sister, Dominika, taking control of Kulczyk Investments.

2024

Took Ciech Private

Took Ciech private and renamed it Qemetica.

Philanthropy & Social Impact

Sports

Pho3nix Foundation

Undisclosed

A global social welfare organization that provides support around the world for children and young people to pursue their dreams and embark on championship careers.

Startup Ecosystem

InCredibles

Undisclosed

An international mentoring program that has been developing and promoting the most innovative startups in Poland with global growth potential since 2017.

Business Philosophy & Leadership

Notable Quotes

"With that cash I would be able to build something unique. Something with international scale."