He graduated with honours from Karol Szymański Academy of Music, as a student of Prof. Paweł Głombik. Adam Krzeszowiec was also a student of Prof. Frans Helmerson at Hochschule für Music und Tanz in Cologne; and of Gary Hoffman at Musicale Reine Elizabeth in Brussels. The history of his studies includes also masterclasses with most distinguished world cellists such as: Heinrich Schiff, Miklos Miklós Perényi, Gustav Rivinius, David Geringas and Pieter Wispelwey.
He is a prizewinner of many international cello competitions i.a. London, Paris, Hradec, Warsaw, Katowice, Dąbrowa Górnicza. He has been performinf as a soloist and a chamber musician in some of the biggest concert halls in Europe, in Wigmore Hall in London, Victoria Hall in Geneva, Salle Gaveau in Paris and Piotr Czajkowski Hall in Moscow. He has been cooperating with many well-known artists such as: Maria Joao, Augustin Dumay, Gary Hoffman, Mischa Maisky, Christian Arming, Michael Tabachnik. He has been performing with many orchestras: NOSPR, Sinfonia Varsovia, Brussels Philharmonic, Orchestre Philharmonic Royal de Liege, Kansai Philharmonic Orchestra, „Arcata” Stuttgart Kammerorchester, Orchestre Royal de Chambre de Wallonie, AUKSO Chamber Orchestra, Bratislava Chamber Orchestra, Leopolis Chamber Orchestra. In the past few years Adam Krzeszowiec took part in many prestigious music festivals: Classical music Festival in Verbier, Sommets Musicaux Festival in Gstaad, International Music Academy - Switzerland in Rolle, Schleswig-Holstein Musik Festival, Casals Festival in Prades, PODIUM Festival, Ensemble Festival in Książ.
Since 2010 he has been performing in a duet with Anna Krzeszowiec. Together they won a Grand Prix at 11th ‘Premio Citta di Padova’ Music Festival in Padua, Italy; and I prize at Malta International Music Competition in 2014.
Since 2012 he has been holding the position of the Principal Cellist in the Polish National Radio Symphony Orchestra and the position of a lecturer in the Department of String Instruments at The Karol Szymanowski Academy of Music in Katowice.
He received a scholarship from the Minister of Culture and National Heritage, from the Mayor of Katowice and from the Silesia Province Marshal. He was also a winner of ‘Młoda Polska’ scholarship program, and Yamaha Foundation award.