:: Private Investigator for Northern & Southern California ::
Are you looking for a private investigator in California?
John A. DeMarr, P. I. is known as a very successful private investigator in Southern California.
Our team of skilled private investigators and our nationwide network of investigators ensure that you will not be disappointed with our services. We are proud to be a part of prestigious professional organizations including, the California Association of Licensed Investigators, the World Association of Detectives and the National Association of Process Servers, just to name a few.
John A. DeMarr, P. I. is also recognized as an industry leading private investigator in Northern California.
Our statewide connections mean that we can help our clients anywhere in California. Selecting a private investigator in California is an important decision. Our proven track record as a private investigator in southern California is evident if you read our Success Stories.
As a private investigator in northern California we have helped to save our clients money and to protect their interests.
If you have any questions about our service as a private investigator in northern California, please give us a call. A professional private investigator in southern California will address your questions and concerns. We look forward to discussing with you our services as a private investigator in California.
More Information on our Private Investigator Service
Success stories from John A. DeMarr, P.I.
Online forms for our P.I. services
Learn more about John A. DeMarr, P.I.
Information on all of our private investigator services

For Your Information
- Conducted in the county where the subject resides. Additional searches
available.
- We conduct one search based on the name and address provided.
- Must meet FCRA requirements.
- Restrictions apply, call for details.
- Additional services are available. Contact us for a free consultation.

We've provided a convenient online form for this service to serve you better.
Please include this form with your order. Call us with any questions.
Call us with any questions at 877-4-DeMarr or 877-433-6277