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We Are Experts in Personal and Corporate Private Investigation Services

With over two decades of experience, Peterson Investigations can help you solve issues for you or your business. Call us today to learn more.


We guarantee the most effective services for you and your business.


The complex and often groundbreaking international cases we work attract the best investigators from around the world.


We’re committed to providing you with top-notch investigative support and knowledge.

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Threat Assessment – Background Checks – Home Security – Surveillance – Cyber Security – Stalking

Peterson Investigations finds proof and information to protect you or your business.

Every case is different and our approach is different depending on the background and issues to be solved. Contact us today for a free consultation and estimate so we can help you.

Peterson Investigations OC Best


If you are looking for a private investigations firm to help with a personal matter, please contact us today. From missing persons to background checks and other issues, we will help you.


At Peterson Investigations, we specialize in corporate surveillance as well as employment screening and other sensitive issues pertaining to your business. Please call us today to discuss how we can help you.

Comprehensive investigative support you and your company can trust.

Peterson Investigations is a full service, licensed private investigations agency that was established by former Los Angeles detective, Eric Peterson.

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Why Choose Peterson Investigations


Experience you can trust – over 20 years in public and private sectors.


Diversity – we serve a wide range of clientele, and every client relationship is valued greatly.


Knowledge – our firm leads the way in investigative techniques that will assist you or your business with your specific issue.


Great reputation – our reputation and history working for companies and clients speak for themselves.


Discreet – our professional staff will handle your issue with the utmost secrecy.

Our investigative team has a well-deserved reputation of excellence in providing smart, sensible, and cost-effective investigative solutions for our clients.

Call today to learn more about how we can help you or your business.

What CLients Say

“I would like to thank you again for the proficient management of my request. I was hesitant to hire a private investigator, but you handled every step professionally and ethically. I would not hesitate to hire you in the future. I admire you and your investigators for the work they did.”

Cameron - Irvine, CA

“Peterson Investigations did a superb job! They were able to obtain excellent photographic evidence, both inside a dimly lit room and outside at night. Their work leaves no doubt as to the nature of the relationship between the two targets of the investigation.”

Tim - Orange, CA

Our Recent Blog Posts

What do I do if I am a victim of online identity theft?

First and foremost, you need to work with the bank that contacted you.Below are some steps you can take to help protect yourself from further incidents of credit fraud or identity theft:Request an initial security alert be added to your credit reports. The quickest...

10 Tips if you feel you’re a victim of stalking…

 Pay attention to your environment and make note of anything out of the cars in the area. Don’t delete any social media posts or communication that the suspect has directed at and past.Be aware of your surroundings.Make sure your house is...

What Should I Have At My Home In Case of An Emergency

With the current state of the world we wanted to let people know what's recommended for an emergency kit.  The below listed items are recommended by the Department of Homeland Security for a Basic Disaster Supplies Kit.Water - one gallon of water per person per day...