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Billionaire Profile
Sebastian Kulczyk
Global Rank
#2351

Image: Piotr Porebski | CC BY-SA 2.0 | via Wikimedia Commons

Sebastian Kulczyk

CEO, Diversified
Warsaw, Poland
Real-Time Net Worth
$1.77B
Estimated based on Diversified stock value as of September 10, 2026
0% (24h)
Age
45
Source
Diversified
Industry
Diversified
Citizenship
Poland

Biography

Sebastian Kulczyk, born in 1980, is a Polish billionaire businessman and investor. His wealth stems from a diversified portfolio, primarily inherited from his father, Jan Kulczyk, who was once Poland's wealthiest individual. Sebastian is the CEO of Kulczyk Investments, a family-owned investment house. His career includes roles at Sony BMG, Lazard & Co., and founding the venture capital fund Manta Ray. As of early November 2025, his net worth was estimated at $1.77 billion. Kulczyk is also involved in philanthropy, particularly through the Pho3nix Foundation, which supports young athletes.

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Data Updated
Sep 10, 2026
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Wealth Over Time

Net Worth History

YearNet Worth
2026$1.77B
2025$1.80B
2024$1.80B
2022$1.30B

Portfolio Holdings

Qemetica

Qemetica

Chemicals
Poland
Autostrada Eksploatacja

Autostrada Eksploatacja

Infrastructure

In-Depth Profile

Early Life

Sebastian Tomasz Kulczyk was born on November 16, 1980, in Poznań, Poland. He is the son of Jan Kulczyk, a prominent Polish billionaire businessman who built a vast empire in sectors including energy, real estate, and telecommunications, and Grażyna Kulczyk, a lawyer, investor, art collector, and philanthropist. Kulczyk grew up in a family of entrepreneurs spanning four generations, with early exposure to business principles shaped by his father's successes.

Rise to Success

Kulczyk's career began at age 19 with an internet cafe network called e24.pl. Although the venture failed, he then founded the interactive marketing agency GoldenSubmarine. He gained experience at Lazard investment bank in London and the digital media unit of Sony BMG in New York. In December 2013, he became the president of Kulczyk Investments, replacing Dariusz Mioduski. He is also the founder of Manta Ray VC, an investment firm focused on the new technology sector.

Key Business Strategies

Kulczyk’s main business strategy involves managing Kulczyk Investments and investing in high-growth sectors. He has a focus on new technologies and venture capital. In 2017, he founded Manta Ray VC, an early-stage venture capital fund. He also shifted focus towards innovative sectors, founding the venture capital fund Manta Ray in 2017 to support startups in education, biotechnology, health, and infrastructure.

Philanthropy

Kulczyk is committed to social responsibility and entrepreneurship development, launching the InCredibles program in 2017 to mentor innovative startups and initiating the Pho3nix Foundation to empower young athletes worldwide through sports and education initiatives. The Pho3nix Foundation supports children and young people in pursuing their passions through sports.

Career Milestones

2001

Digital Media Unit

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

2009-2010

Lazard

Worked at Lazard investment bank in London

2013

President of Kulczyk Investments

Became president of Kulczyk Investments, the family's international holding company

2017

Manta Ray VC

Founded Manta Ray VC, an early-stage venture capital fund

2017

InCredibles program

Launched InCredibles program to mentor innovative startups

2020

Pho3nix Foundation

Founded the Pho3nix Foundation, a global nonprofit organization supporting children and young people in sports

2024

Took Ciech private

Took over the chemical business Ciech, renaming it Qemetica

Philanthropy & Social Impact

Sports and Education

Pho3nix Foundation

$XB

Supports young athletes and promotes sports and education initiatives.

Entrepreneurship

InCredibles program

$XB

Mentoring and supporting Polish startups

Social Initiatives

Kulczyk Foundation

$XB

Supports various social initiatives in Poland and abroad. Mainly focused on education and community support.

Billionaires Connected to Sebastian Kulczyk

Peers in Diversified

All Diversified billionaires

Richest in Poland

All billionaires from Poland

Adjacent Global Ranks

Full global ranking

Frequently Asked Questions

What is Sebastian Kulczyk's net worth in 2026?
As of 2026, Sebastian Kulczyk's estimated net worth is $1.773 billion, ranking #2351 among the world's billionaires. The estimate is based on publicly available shareholding data and market prices, updated daily.
How did Sebastian Kulczyk make their money?
Sebastian Kulczyk's wealth primarily comes from Diversified, most notably through Diversified.
Where is Sebastian Kulczyk from?
Sebastian Kulczyk is from Poland.
How old is Sebastian Kulczyk?
Sebastian Kulczyk is 45 years old.

Sources & References

Citations for this profile have not been published yet. Net worth figures here are estimates and should not be treated as verified. See our methodology for how these estimates are produced, or report a correction.