Metro-Goldwyn-Mayer

1916–1924
The company was founded in late 1916 by Louis B. Mayer and Richard A. Rowland.

Goldwyn Pictures Corporation
This company was founded by Samuel Goldfish along with Edgar and Archibald Selwyn. The company monicker was an amalgamation of both last names. Goldfish later changed his name legally to Samuel Goldwyn. This was the company that first introduced Leo the Lion as their logo. Their first lion mascot was not Slats, though many people think he is.

Louis B. Mayer Pictures
Mayer formed his own organization after two years at Metro.

Metro-Goldwyn Pictures
Metro and Goldwyn Pictures are acquired and merged by Marcus Leow.

Metro-Goldwyn-Mayer
Following the merger with Louis B. Mayer Pictures, the company is from this point on named Metro-Goldwyn-Mayer as a wholly-owned subsidiary of Loews Corporation. This lion, Slats (Really named Cairbre), was shown at Gay's Lion Farm.

1924–1928
Slats

1928–1956
Jackie

1928–1932
Telly (1st Technicolor Lion)

1932–1935
Coffee (2nd Technicolor Lion)

1934–1956
Tanner (3rd Technicolor Lion)

1956–1958
George

1957–present
Leo

1966–1982
This was only used on 3 films, but served as the print logo until 1982.