Edison International (NYSE: EIX) is a public utility holding company based in Rosemead, California. Its subsidiaries include Southern California Edison, and un-regulated non-utility assets Edison Mission Energy and Midwest Generation, power producers, and Edison Capital. Edison's roots trace back to Holt & Knupps, a company founded in 1886 as a provider of street lights in Visalia, California.

For the first nine months of 2010 power generation unit, Edison Mission Energy (EME) produced 22.091 GWh of electricity a 2% increase over the corresponding period in 2009.

The company was first incorporated in 1909 as Southern California Edison Company after Southern California acquired the assets of Edison Electric Company; it was known as Southern California Edison until 1996 when it adopted its current name in recognition of its growing business abroad and in other industry sectors. Edison first became a holding company in 1988 when it made a small change to its original name, becoming known as SCEcorp.