[5] In 1934, Redstone and Sagansky started a Boston nightclub, the Mayfair, and purchased a drive-in theater in Valley Stream, Long Island.

Both ventures were funded by Sagansky, who contributed "hundreds of thousands of dollars" to Redstone's businesses.

[5][6][7] The pair also started a Massachusetts loan company, and opened an additional night club, the Latin Quarter, in 1943.

[8] On August 28, 1959, Northeast was reincorporated as National Amusements, Inc. to consolidate the family's ownership interests and make it easier to obtain financing.

[10][11] His son, Sumner Redstone, grew National Amusements into one of the largest media conglomerates in the United States, owning one of the three broadcast networks in CBS, the cable television and content provider Viacom (which includes MTV Networks and BET), and the movie studio Paramount Pictures.