Over 20 years of Investigative Expertise!
Corinthian Group: Preeminent Private Investigators in California
California’s Premier Private Detective Agency. An invaluable source of information for those considering hiring a private investigation agency.
The Corinthian Group Difference!
Welcome to Corinthian Group
Welcome to our website! Our goal during your visit is simple: to provide helpful knowledge and insight into what it truly takes to run a successful investigation.
Specifically, we want to set a new standard for the private investigation industry. At the same time, we hope to educate the public and prospective clients along the way. After all, not every private investigation agency operates the same way.
You’ll find plenty of investigation websites competing for your attention with flashy ads or clickbait. However, our priority at Corinthian Group is different. Rather than simply paying for ad space to reach prospective clients, we focus on educating the public about how to choose the right private investigator with confidence.
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Our Commitment to Excellence
Corinthian Group understands that your case needs to be handled correctly the first time. At the same time, we believe it should be conducted in a cost-efficient manner while still delivering superior results.
Part of our mission is to transform the investigative experience for every client we serve. We do this through careful training, thorough vetting, and strong management of our investigator teams. In fact, our private investigators are the true backbone of our success over the past two decades.
Because of this, it’s essential that every investigator reflects the same passion, dedication, and pursuit of excellence that our founders built this company on. Corinthian Group is a family. That’s why we maintain a 100% retention rate, which means you can count on consistent, reliable service no matter which investigator is assigned to your case.
Ultimately, we invest heavily in our private detectives. As a result, you can feel confident investing in us.
With over 30 years of combined experience, we provide exceptional legal support services to individuals, businesses, and law firms. Specifically, our services include insurance fraud investigations, child custody and family law investigations, and workplace investigations.
In addition, we offer infidelity investigations and criminal defense investigations. Whatever your situation, our team brings the experience and expertise needed to help you move forward with confidence.
Our Services
Insurance Fraud
Tired of paying for unproductive surveillances yielding no
results?
Workplace/Employee Malfeasance
Employee liabilities hurting business productivity?
Child Custody & Support
Concerned about your child’s well being while with their other parent?
Infidelity
Is an unfaithful spouse or significant other taking you for granted?
Drones / Aerial Surveillance
Do you need hard to obtain intel and or a spectacular shot?
Criminal Defense INVESTIGATIONS
Uncovering the TRUTH in pursuit of reasonable doubt.
“KNOWLEDGE IS POWER”
Do you need to hire a Private Investigator NOW?
To learn more about hiring a Private Investigator.
Why should you hire Corinthian Group’s Private Investigators?
Informational Videos
~ Client Testimonials ~
My family and I are truly grateful!
Claude’s expertise and professionalism are outstanding. If you require investigative services by a true expert, I highly recommend Claude. His attention to detail, excellent communication skills, and integrity to his clients make him stand above the rest! Claude, your dedication and continued support are attributes of your professionalism!
Vickie Thompson
Very informative and knowledgeable!
Claude is very informative and knowledgeable about the steps I need to take in how to go about a current situation. I really appreciated his advice and I feel confident about what I need to do next. He is very kind and answered all my questions, thank you for your professional help and guidance. If you are unsure about something like I was, talk to Claude he will do the best he can to help you.
Natalie B.
My attorney had a field day!
Going through with my divorce was a walk in the park. The evidence of unbecoming behavior that I accumulated courtesy of Corinthian Group’s surveillance investigators was enough to make my case in court and my attorney had a field day. Thanks guys for helping save my life.
Sandrila Jones
Exceeding each and every expectation!
During my career as an attorney, I would have need for a trusted, competent, reasonable, fair-priced, creative, and ethical private investigator. Claude Ammons has been that man.
K.B. Jones
Attorney Kevin Brian Jones
Within weeks our theft issues had disappeared!
Our company was incurring loss due to employee theft and Claude was hired to help detect how the loss was occurring and implement a solution. Within weeks our theft issues had disappeared and we have suffered no further loss. Claude was professional, diligent and offered a variety of solutions to our company while maintaining a high degree of integrity. I would recommend his services to others with similar problems.”
Doug Binford
Quick Links
- Drones: Aerial Surveillance & Recon
- Family Law Investigation Preparation Checklist
- Family Law Investigations – Blog
- Protection Your Children – Blog
- Child Custody Investigations
- Infidelity Investigations
- Insurance Fraud Investigations
- Criminal Defense
- Workplace Investigations
- Background Checks – Blog
- 24 Hour Stationary Surveillance
- A Guide to Private Investigations -Blog
Contact Info
CORINTHIAN GROUP
4193 Flat Rock Drive-Building 200, Riverside, California 92505, United States
California PI License # 26978
FAA 107 License # 4374346
Toll Free (877) 687-3939
Locally at (909) 931-3595
Working Hours
Office Open: Monday – Friday
Office Hours: 9:00 am to 4:30 pm
Lunch Hours: 12:00 pm to 1:00 pm