[2] Kulczyk graduated from VI Jan i Jędrzej Śniadeccy Secondary School in Bydgoszcz in 1968.

The Interkulpol joint-venture was one of the first international trade companies formed in Poland after the second world war.

His first large-scale deal was a PLN 150-million (35.7 million euros) sale of 3,000 Volkswagen cars delivered to the Polish police and the security services in the early 1990s.

[13] Kulczyk invested in energy, oil and gas, infrastructure, real estate and brewery sectors.

[19] Kulczyk Investments portfolio includes also a 15.4% share in Strata Limited, a company focused on development of mining projects in Africa[20] and a 25% share in Centar, a company exploring for natural resources in Afghanistan and other countries in Central Asia and Africa.

[34] Since June 2006, he was member of the Green Cross International Board of Directors - a UN-affiliated organization focused on ecological safety.

[36] In 2010, he founded the CEED Institute, a think-tank promoting the development of Central and Eastern Europe region.

The parliamentary investigative commission report stated that Kulczyk could have considerable influence over operations and human resources politics of PKN Orlen, incommensurable to the share he held.

Kulczyk was heard as a witness by the prosecutor's office four times (the last one in April 2008) and submitted extensive explanation to the parliamentary investigative commission.

[43][44] In the years leading up to his death, Kulczyk commissioned the Lonsdaleite Estate, a new personal residence in St Moritz, Switzerland.

[47] The same year, the Wprost magazine also put Kulczyk at the top of its ranking, assessing his wealth at PLN 9,7 billion.

Kulczyk was top ranked 13 times at the list of the 100 richest Poles issued by the Wprost magazine.