About

Today, as it always has been, the time-honored commitment of customer satisfaction remains our focus.

My name is A. Joseph Zako, California State Private Investigator License No. 12465.

In 1952, Robert A. Estes, Sr., California State Private Investigator License No. 3430, started a small company with a unique commitment to help clients.

I started working with Mr. Estes in 1985, and we joined forces in 1987 after I received my Private Investigator license. I became the owner of the firm after his retirement in 1993.

Estes-Zako & Associates Investigations continues to build relationships and partner with clients, and we continue to ensure the highest customer satisfaction rates in the industry.

Please contact Estes-Zako & Associates Investigations for more information.