Numerous are the concerts and recordings collaboration as a sideman. Dave Liebman, Phil Woods, James Moody, Maurizio Giammarco, Barney Wilen, Ronnie Cuber, Sal Nistico, Michael Brecker, Tony Scott, Joe Lovano, Massimo Urbani, Curtis Fuller, Kay Winding, Albert Mangelrsdof, Cedar Walton, Tommy Flanagan, Kenny Kirkland, Mal Waldron, Enrico Pieranunzi, Franco D'Andrea, Ben Sidran, John Scofield, John Abercrombie, Didier Lockwood, Bobby Hutcherson, Richard Galliano, Joe Zawinul, Bireli Lagrene, Pat Metheny.
As a leader he has recorded nine albums: Notes (feat. M.Brecker), Ask (feat. J.Scofield), Luna, Jungle Three, Improvvisi, L'Avventura, 7#, Sing Sing Sing, Roberto Gatto plays Rugantino. Roberto Gatto has also played in numerous pop albums of international artist.
In the last few years he also composed music for films. Toget who won five Davide di Donatello Mignon è partita, Verso Sera, Il grande cocomero.
His biography is included in the famous "Biographical Enciclopedya of Jazz" by Leonard Feather & Ira Gitler. Roberto Gatto received numerous awards; among them the most important are the following: in1985/1987, with the group Lingomania, he was the number one in the "Top Jazz" poll of the magazine Musica Jazz; in 1988,1989,1990 he was the number one drummer in the "Guitar Club" poll; in 1992 he was voted as best italian drummer by the magazine Percussioni.
He as done two instructional videos: Batteria! (1993) and Batteria! vol.2 (1994). In 1995 and 1996 he was the artistic director of Jazz in progress of Teatro Dell'Angelo. Actually is the artistic director of jazz Festival "Alta Valle del Potenza"