About Grégoire Nitot
Born 1976. Grégoire Nitot is a Polish and French entrepreneur.
Grégoire Patrick Clément Nitot (born in 1976 in Caen) is a French-Polish entrepreneur and sports activist. He is the founder and CEO of Sii Poland, and since 2020, the owner and president of the Polonia Warsaw football club.
Life Grégoire Nitot grew up living on a boat on the Seine in Paris. Initially, he wanted to become a professional soccer player. At the age of about 18, he decided to tie his future to business. To realize this plan, he completed a master's degree at the Rennes School of Business. In 2000, he came to Poland, where he studied for a year at the Warsaw School of Economics under the Erasmus student exchange program. After completing his studies, he returned to France. He has lived in Poland since 2006 and received Polish citizenship in 2016.
Career After working as a Sales Manager in the IT industry in Paris for several years, in 2006 he decided to move to Poland and set up Sii Poland. With €30,000 in savings, he began looking for an investor. After successful negotiations with Sii France, with a capital of €100,000, he launched his individual entrepreneurship in an apartment in downtown Warsaw. By 2022, Sii Poland had transformed into an organization generating annual revenues of PLN 1.91 billion net, with PLN 260 million in profits, employing 8,000 specialists in 15 branches across the country. It also opened a subsidiary, Sii Sweden, and strategically acquired of Sii Ukraine in 2021.
As of 2018, Nitot owns the Tawerna Kashubska hotel and restaurant in Brodnica Dolna.
In March 2020, Grégoire Nitot invested in Polonia Warsaw football club, saving it from bankruptcy. The two-time Polish champion returned to the central level after a five-year absence. In 2022, Polonia Warsaw was promoted to the II league.
Controversies Opponents of Nitot's buying of Polonia Warszawa organized a campaign of threats and slander against him and Sii Poland in 2020. In response, Sii Poland has launched a widely reported campaign titled "Haterade is not OK." Furthermore, Nitot has been accused of unlawfully firing an employee for creating a workers' union in Sii Poland and afterwards wrote a mail to the victim with an explanation, in which the victim is accused of "supporting extremism, working there for just 6 months not knowing the company all too well and yet being detrimental to its further work". Addressing the claims of Krystian being fired were true, but the actual reason would be his and the workers' union's "hatred and hurtful action against Sii Poland", of which an example Nitot presented a part of a speech about obeying work laws in Poland and France
Personal life He married a Polish woman, Irena, with whom he has four children, Szymon, Juliette, Chloe, and a foster daughter, Kamila.
Don’t just read it —
keep it.
Full-length biographies made to live with: read them, listen on the way to work, watch them tonight.
- E-book
- Audio
- Video
Instant download · yours to keep · every purchase keeps this site free
Important facts
People in Grégoire Nitot's life
Named in this biography and alive at the same time
Contemporaries
People whose lives overlapped Grégoire Nitot's
Frequently asked questions
Who is Grégoire Nitot?
French-Polish businessman
When was Grégoire Nitot born?
Grégoire Nitot was born in 1976 in Caen.
What is Grégoire Nitot's occupation?
Grégoire Nitot is an entrepreneur.
What nationality is Grégoire Nitot?
Grégoire Nitot is Polish and French.
Sources & further reading
Cite this page
APA: Biography.guide. (2026). Grégoire Nitot. https://biography.guide/gregoire-nitot/
MLA: "Grégoire Nitot." Biography.guide, https://biography.guide/gregoire-nitot/.
Chicago: "Grégoire Nitot." Biography.guide. https://biography.guide/gregoire-nitot/.
Data last updated: 2026-09-21 · Spot an error? Report a correction.
Portrait: Wikimedia Commons · author & licence
Page generated 2026-09-27 04:59 UTC