John Parker is a co-founder of Parker Brown, Inc., a construction company headquartered in Canoga Park. John has set the tone for the company's construction operations and corporate management. Parker Brown employs more than 50 people and has achieved many awards. In 2008 and 2009, the San Fernando Valley Business Journal selected Parker Brown as one of the "Best Places to Work in the San Fernando Valley".
John served as the President of the United Chambers of Commerce from 2011-2012. The United Chambers of Commerce is the coordinating group for most of the San Fernando Valley Chambers of Commerce.
Today John serves as the Chair of Finance for U.C.C. John is involved in his Church serving as President of the Men's Club in the past and is also involved with the American Youth Soccer Association for the last 25 years
John serves on the Executive committee, Board of Directors of The Valley Economic Alliance.
John serves on the Board of Directors of Mission Valley Bank (community Bank Head quartered in the San Fernando Valley)
John was included in the San Fernando Business Journal "The 200 most influential leaders in the valley areas." for 2017 and again for 2018.
John was appointed as a commissioner to the county of Los Angeles Building Appeals and Rehabilitation Board by county supervisor, Zev Yaroslavasky and he still serves.
John was appointed as Commissioner to the City of Los Angeles Innovation and Productivity Commission by council member Bob Blumenfield.