CAlifornia private investigators

Finding Answers Through Private Investigation & Surveillance

We legally obtain evidence and reveal the truth in a discreet and confidential manner.

Finding answers through private investigation & surveillance

Landmark Investigations specializes in surveillance and background checks. We legally obtain evidence and reveal the truth in a discreet and confidential manner.

Surveillance
Professionals

Secure video evidence to prove your case

Background
Checks

Access public records and verify personal information

Asset
Checks

Analyze financial information and verify for accuracy

CALI Leadership Member

Orange County Governor

ACFE
Member

Certified Fraud Examiners

Licensed
Investigators

Experienced Investigators

Process
Servers

Registered Process Servers

Landmark Investigations

We specialize in surveillance, background checks, forensic accounting, and process service. We provide answers in an unbiased and objective manner allowing you to make informed decisions.

By assessing your expectations we formulate an investigation tailored to your circumstances, offering affordable rates we legally obtain evidence and reveal the truth in a discreet and confidential manner.

Worry is not the answer to your concerns. Call and take advantage of the free consultation.

We guarantee a professional, discreet and absolutely confidential service.

Call 949-662-5080

Speak to a professional now

Private Investigator Services

Message us via our Contact Form

The results of a well-planned investigation will allow you to put your suspicions to rest and make informed decisions. Landmark Investigations covers the following scenarios:

Who We Are

Serving California for over 15 Years with Integrity, Determination, & Results

Landmark Investigations is comprised of experienced investigative professionals. The firm’s owner, Tom Graybill, is a Certified Fraud Examiner and a retired SIU Investigator with 15 years of high-level, complex investigation experience. Our core principal is Integrity, and it is demonstrated in all of our work.

We specialize in all types of business and personal fraud and litigation services, but we are well-suited to handle any type of investigation from simple surveillance investigations to more complex fraud and embezzlement cases. Landmark Investigations can help you and your clients solve their problems. You can rely upon our experience and expertise to bring your case to a speedy resolution.

We provide answers in an unbiased and objective manner allowing you to make informed decisions. By assessing your expectations we formulate an investigation tailored to your circumstances, offering affordable rates we legally obtain evidence and reveal the truth in a discreet and confidential manner.Worry is not the answer to your concerns. Call and take advantage of the free consultation. We guarantee a professional, discreet and absolutely confidential service.

Call 949-662-5080

Speak to a professional now

Private Investigator Services

Message us via our Contact Form

The results of a well-planned investigation will allow you to put your suspicions to rest and make informed decisions. Landmark Investigations covers the following scenarios:

These ARE SOME OF

THE MANY SERVICES WE OFFER:

Landmark Investigations is a trusted resource for investigative and legal support. Our purpose is to provide our clients with the most comprehensive investigative results.

landmark investigations logo white

A Trusted Resource For Investigative and Legal Support

Our purpose is to provide our clients the most comprehensive investigative results.

Our Testimonials

WHAT OUR CLIENTS SAY

Tom was great to work with from start to finish, I hired him to do investigative work and surveillance for my case. Highly recommended for any type of private investigation work and surveillance!
Caitlin L.
Studio City, CA
We're very pleased with the employee background check work that Tom did for us on short notice. I especially liked that he had years of experience here in OC and that he had a good understanding of the legal issues.
Crystal P.
Huntington Beach, CA
I highly recommend Tom if you ever find that you need a smart, dedicated and reliable private investigator for any type of investigation. I need to give extra kudos to Tom for going above and beyond as a private investigator for me.
Lori L.
San Diego, CA
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