Busy working as a session player between 1994 and 1996 he finally released his debut album as a band leader in 1995, which was called Sweden Bass Orchestra.

He has co-written: "Metal Will Stand Tall", "Streets of Fire", "Seven Seas", "Reach the Sky", "I Rule the Night" and "Father to a Son".

In 1999 he started to work with The Flower Kings, replacing Michael Stolt who moved on to other projects; he has remained a permanent member in the group.

Reingold played bass as special guest on the Musea/Colossus release: Dante's Inferno with Hungarian progressive rock band Yesterdays.

In 2009, Reingold was recruited yet again by fellow Flower King member, Roine Stolt, to join a new band, Agents of Mercy where he played bass on three albums.