Howie Weinberg is a music mastering engineer who has worked with numerous bands. In 2011 he moved to Los Angeles and opened Howie Weinberg Mastering located in Laurel Canyon after working at Masterdisk, New York City, since 1977. Weinberg was responsible for the mastering of several Bill Laswell related releases, such as Herbie Hancock's Grammy Award winning album Future Shock (including the hit single "Rockit"), Rhythm Killers by Sly and Robbie, Brain Drain by the Ramones, Material's Memory Serves and Buckethead's debut album Bucketheadland. Other notable works include the Beastie Boys' License to Ill and the multi-platinum Nevermind by Nirvana.

Once Andy Wallace had finished his mix of Nevermind, the master tapes were forwarded to Howie Weinberg at Masterdisk Studios in New York City. "I'm sort of a goal tender in the creative process," says Howie Weinberg at Masterdisk Studios in New York. "I'm the last stop to make it better before pressing."

Weinberg also worked with Tom Waits, The Mars Volta, Spoon, Public Enemy, Rammstein, Aerosmith, 30Aut6 and The White Stripes. Dimebag Darrell of Pantera fame is quoted as saying:

When you get to mastering you've got to find the magic mix that works once it goes through all the compression and EQing. We worked with Howie Weinberg and he's a fantabulous motherfucker.

He appeared at the 2009 SXSW on the Panel: Producers On Making Classic Records.

In January 2011, he left Masterdisk to set up his own mastering company in Los Angeles.