Lucasfilm Ltd., LLC is an American film and television production company based in the Letterman Digital Arts Center in San Francisco, California. The studio is best known for its films, such as those in the Star Wars and Indiana Jones franchises, as well as its leadership in developing special effects, sound and computer animation for film. Lucasfilm was founded by filmmaker George Lucas in 1971 in San Rafael, California; most of the company's operations were moved to San Francisco in 2005. The Walt Disney Company acquired Lucasfilm in 2012 at a valuation of $4.06 billion.
Source: Wikipedia, "Lucasfilm", available under the CC-BY-SA License.