Which company produced Seinfeld with Jerry Seinfeld and Larry David’s West-Shapiro Productions?

Castle Rock Entertainment produced Seinfeld with Jerry Seinfeld and Larry David’s West/Shapiro Productions.

Castle Rock was the television and film company behind the sitcom from its early development through its NBC run. The company produced the pilot, originally titled “The Seinfeld Chronicles,” and remained part of the show’s production arrangement alongside West/Shapiro Productions and other associated companies. Sony Pictures Television later handled distribution and syndication rights, which is distinct from the company credited with producing the series.

Castle Rock was founded in 1987 by filmmakers and television executives including Rob Reiner, Andrew Scheinman, Martin Shafer, Glenn Padnick, and Alan Horn. Its name comes from the fictional Maine setting used in several Stephen King stories. The company became known for films such as Stand by Me and A Few Good Men, as well as television productions.

A common mix-up is treating NBC as the producer because it broadcast the show. NBC was the original network, not the production company named in the question. Likewise, Sony’s later distribution role does not replace Castle Rock’s production credit. Seinfeld originally aired from 1989 to 1998.