Tomas Gricius (b. 1977) studied trumpet at the J. Naujalis School of Music in Kaunas, Lithuania, in 1983-95. He continued his studies at the Lithuanian Academy of Music and Theatre (1995-2002) with S. Petrulis, A. Kontautas, and T. Dokshizer. In 1996-1997 Tomas Gricius attended the Guildhall School of Music and Drama in London (Profs. J.Miller and A.McAneney). In year 2000 studies at the Sibelius Academy of Music in Helsinki (Prof. J.Harjanne’s class). The performer has attended master classes held by T.Dokshizer, M.Andre, R.Simons, U.Agnas, P.K.Svendsen, G.Cassone.
Tomas Gricius is a winner of J.Pakalnis National Wind Instruments Competition (1987, 1992, 1995). Tomas won first prize in the 3rd international Raimo Sarmas trumpet competition in Lieksa(2007). The trumpeter gave solo performances in various festivals with the Prague Chamber orchestra, Lithuanian State Symphony, Lithuanian Chamber, St. Christopher Chamber, Joensuu City, Finnish Radio Symphony Orchestra, Kaunas Chamber orchestras and with Musica Humana Chamber ensemble. He has been also giving many concerts as a performer of chamber music. Together with Gaida Ensemble (Vilnius, Lithuania) he has performed and recorded a lot of contemporary music, and now he is often invited to play concerts with the Avanti Chamber Orchestra. 
His teaching experience encompasses work at the J. Naujalis School of Music (2002-04), M. K. Čiurlionis School of Arts in Vilnius (2003-05), Trakai Fanfare Week, Kaarina music camp and Lieksa Brass Week. Tomas Gricius has been working in the Lithuanian National Symphony Orchestra (1997-2005, co- principal trumpet since 2000), and since 2006 Tomas is 2nd solo trumpeter with Finnish Radio Symphony Orchestra.
 In 2008 he was invited to play principal trumpet in the World Symphony Orchestra (Korea tour). Since 2013 Tomas is guest teacher at the Vytautas Magnus University Music Academy.
2011 performance of 2nd Brandenburg concerto(J.S.Bach) with FRSO.
 2014 solo performance with Finnish Radio Symphony Orchestra, cond.J.Weilerstein, B.A.Zimmermann “Nobody knows the trouble I see”
. 2015 solo performance with ,,Avanti’’, cond.H.Lintu, Matthias Pintscher “Sonic eclipse” 2018  2ndBranderburg concerto at Naantali music festival(Finland).