In Simi Valley there are two main areas of industry — one in the eastern part of the city and the other one in the west.

The primary industry is machinery and tools with 69 firms, and the secondary is the metal Industry with 51 firms, both situated in the eastern and western industrial areas.

Other industries such as Lumber/Wood Products, Food, Plastic Products, Apparel/Textiles and Minerals, are also concentrated largely in these industrial areas.

The largest division of Countrywide Home Loans, now Bank of America, Loan Administration, has been headquartered in the city since the mid-1990s.
Operating from Madera Road in a building that once housed the apparel company Bugle Boy, the company also has facilities on Tapo Canyon Road, and First Street.
At its height, Countrywide had approximately 10,000 employees in the city.

The Volkswagen of America Design Center was once in an industrial complex across from the Costco wholesale club near Madera and Cochran.
 The VW Design Center California or DCC, moved to Santa Monica, California in the spring of 2006.
 Such notable automotive designers as Jay Mays, now (2007) VP Design for Ford and Freeman Thomas, co designer with Jay Mays of the original Audi TT, once called the DCC in Simi Valley their place of work.
 The original concept for the New Beetle from Jay Mays, had its genesis there.
In Simi Valley there are two main areas of industry — one in the eastern part of the city and the other one in the west.
The primary industry is machinery and tools with 69 firms, and the secondary is the metal Industry with 51 firms, both situated in the eastern and western industrial areas.
Other industries such as Lumber/Wood Products, Food, Plastic Products, Apparel/Textiles and Minerals, are also concentrated largely in these industrial areas.
The largest division of Countrywide Home Loans, now Bank of America, Loan Administration, has been headquartered in the city since the mid-1990s. Operating from Madera Road in a building that once housed the apparel company Bugle Boy, the company also has facilities on Tapo Canyon Road, and First Street. At its height, Countrywide had approximately 10,000 employees in the city.
The Volkswagen of America Design Center was once in an industrial complex across from the Costco wholesale club near Madera and Cochran.  The VW Design Center California or DCC, moved to Santa Monica, California in the spring of 2006.  Such notable automotive designers as Jay Mays, now (2007) VP Design for Ford and Freeman Thomas, co designer with Jay Mays of the original Audi TT, once called the DCC in Simi Valley their place of work.  The original concept for the New Beetle from Jay Mays, had its genesis there.
Simi Valley, California