A Dallas, Texas manufacturer and reseller of stage lighting equipment from the 1950s until ~1980. Much like Ariel Davis Manufacturing Company (later Electro Controls), Little's primary market was schools and amateur theatres.
Of particular historical interest in the attached 1962 catalog is the "Z-Lite"--a fixture claiming the functionality of an ERS while using a PAR64 source, not unlike the AD ParLiter/EC 3201.
(Locate the document by typing/copying "Little Stage Lighting Company" into the search box.)
1962 Catalog #3.pdf, courtesy of @ship.