Tomasz Sloniewski joined IDC in January 2003. He researches and analyzes the software markets in Poland and the Baltic States and oversees standard software research for Central and Eastern Europe. As a research manager, Sloniewski helps to set the research agenda and engages in strategic consulting for IT organizations looking to expand their businesses in Central and Eastern Europe. Sloniewski is also a leader of the big data research group in IDC CEMA, which monitors and analyses the development of related technologies in CEE.

Sloniewski has had articles published in the IT press in Poland covering topics such as business intelligence, big data, IT security, and enterprise resource planning. He is quoted regularly in the Polish press and on Internet portals, and he frequently delivers presentations covering IT market issues at various events and conferences.

Tomasz Sloniewski holds a master's degree in international relations from the University of Warsaw, Poland.

Central Europe Security Software Market 2012–2016 Forecast and 2011 Vendor Shares Darja Jama Tomsic, Dana Samson, Ivan Juras, Pyotr Gorodetskiy, Gabor Fauszt, Edyta Kosowska, Tomasz Sloniewski, Mark Child Dec 2012 - IDC# ESE1U Market Analysis Tanulmány megvásárlása vagy egyéb információ kérése

Central and Eastern Europe Security Software Market 2011–2015 Forecast and 2010 Vendor Shares Mark Child, Edyta Kosowska, Tomasz Sloniewski, Pyotr Gorodetskiy, Gabor Fauszt, Dana Samson, Ivan Juras, Darja Jama Tomsic Dec 2011 - IDC# ESE1T Market Analysis Tanulmány megvásárlása vagy egyéb információ kérése

Central and Eastern Europe Storage Software Market 2011–2015 Forecast and 2010 Vendor Shares Mark Child, Tomasz Sloniewski, Edyta Kosowska, Gabor Fauszt, Pyotr Gorodetskiy, Dana Samson, Ivan Juras, Darja Jama Tomsic Nov 2011 - IDC# ESR1T Market Analysis Tanulmány megvásárlása vagy egyéb információ kérése

Central and Eastern Europe Storage Software Market 2010–2014 Forecast and 2009 Vendor Shares Mark Child, Pawel Hrydziuszko, Tomasz Sloniewski, Pyotr Gorodetskiy, Gabor Marosvari, Dana Samson, Karlo Pernek Feb 2011 - IDC# ESR1S Report Series Tanulmány megvásárlása vagy egyéb információ kérése