The Record Plant was a series of three famous recording studios which were founded by Gary Kellgren and Chris Stone, beginning in New York City in 1968. The next year, Kellgren and Stone opened a second studio in Los Angeles. In 1972, the company expanded again with a third location in Sausalito, California. Kellgren died in 1977, and in the 1980s, the New York and Sausalito studios ended up under different ownership and management. The New York studio closed in 1987 and the Sausalito studio closed in 2008. The Los Angeles studio continues in business as the "Record Plant".
The Record Plant in New York was the first studio to give the recording artist a comfortable, casual environment rather than the clinical setting that was the norm through the 1960s. Kellgren and Stone brought this same vision to their Los Angeles and Sausalito properties. Stone later said of Kellgren, "He single-handedly was responsible for changing studios from what they were—fluorescent lights, white walls and hardwood floors—to the living rooms that they are today."
In 1967, Kellgren was a recording engineer working at several New York City studios including Mayfair on 701 Seventh Avenue at the edge of Times Square, a drab upstairs office, a single room which held the only professional 8-track recording system in New York. There, Kellgren worked with artists such as The Velvet Underground who recorded Sunday Morning in November 1966, Frank Zappa and Jimi Hendrix, engineering their recordings and also sweeping the floors. In late 1967, Chris Stone was introduced to Kellgren because Kellgren's wife Marta was seven months pregnant, scared of the upcoming birth, and Stone's wife Gloria had just given birth. Mutual friends thought that the two couples could talk about being parents and ease Marta's worry.
Though they were "diametrically opposed" in nature, with Stone all business and Kellgren very creative, the two quickly became friends. Seeing him at work, Stone determined that Kellgren was not making full use of his genius for making recordings. Stone noticed that the small studio was charging its clients $5,000 per week, but Kellgren was making $200 per week. Stone suggested Kellgren ask for a raise, and soon he was making $1,000 per week.