The Jazz officially announced Wednesday forwards Trey Gilder and Darnell Jackson, center Brian Butch and guard Chris Quinn have been added to the team's 2012-13 training camp roster.
The Tribune previously reported the signings of Gilder, Jackson and Butch.
The 6-foot-2, 175-pound Quinn has played with Miami, New Jersey and San Antonio during five seasons. The Notre Dame product has averaged 4.6 points and 1.6 assists during 13.4 average minutes in 234 total games.
Utah's roster stands at 19 players and must be cut down to 15 before the start of the regular season.
Second-round pick Kevin Murphy must make the team to eventually have his contract guaranteed, while veteran guard Raja Bell isn't expected to play for Utah this season.
The Jazz have yet to finalize a long-delayed buyout with Bell, though, and there had been no reported progress in negotiations as of Wednesday evening.
The Jazz will hold their annual media day Monday. Camp starts Tuesday and runs through Friday. Utah will then hold a free, open-to-the-public scrimmage 4 p.m. Saturday at EnergySolutions Arena.
The Jazz begin an eight-game preseason run Oct. 8 at Golden State.
Utah tips off its regular season Oct. 31 against Dallas.