Interstate Public Service Company

1912–1931

LOGO MISSING

Public Service Indiana

1931–1964

LOGO MISSING

1964–1990

Designer:  Lippincott & Margulies

Typography:  Folio Extended

Launched:  December 4, 1964

PSI Energy

1990–1994

Designer:  Unknown

Typography:  Bodoni

Launched:  April 18, 1990

PSI merged with the Cincinnati Gas and Electric Company to form Cinergy in 1994.

PSI Energy

Cinergy ►