Tristar Investigation offers a variety of estate and probate legal services to attorneys and law firms. From locating missing heirs to uncovering unknown assets, we have a 28-year track record of providing professional and efficient estate and probate legal research throughout California and the United Sates.


In estate and probate matters there is often a limited amount of information to start an investigation. From locating family members to identifying distant and long lost relatives, the trail is often years old and the clues are few. At Tristar Investigation we have the resources to get to the bottom of these complex and challenging investigations.
Tristar Investigation has been on the cutting edge of database research technology since their inception in the early 1980’s. We own tens of thousands of dollars in proprietary databases and in addition we are directly connected to thousands of additional proprietary databases which contain billions of records. Our genealogy researchers provide invaluable additional hands on research when the project requires the skills of genealogists.

For more information on locating missing persons or click here. For more information on an Asset Search click here. For a free consultation or to get started right away on assigning an estate or probate investigation, call us for service throughout California and the US at (800) 487-0947, e-mail us or download our fax form.

What people are saying

Thank you for providing me with such outstanding service. I truly appreciate you and your staff for all you’ve done for me and my family…. I’m totally pleased with the outcome and their findings… Great job!

Gerome S. | Retired | USA

I have used Tristar for years. Their response time and results are unparalleled. They get my highest praise.

Robert Clayton, Attorney | Taylor & Ring, LLP | Los Angeles, CA

Tristar found my birth mothers records the same day. I am very impressed with their professionalism and the services they provide. I will use them again for any of my needs.

Dr. Claudia Barne | Professor | 23 years

Tristar was very helpful in my address search. Kellie Anguiano was very personable and kept me up to date with the search process… Thank you so much for your help!

Emily | DDS Student | 2 years | Los Angeles, CA

Tristar is by far the most reliable and efficient investigator we have ever used.

Nicole Young | Attorney, 14 years | Woodland Hills, CA

Tristar in the news

Tristar Investigation has been featured in a dozens of publications, everything from print to TV and radio. Bellow you will find Burce Robertson interviewed and discussed on famous publications such as the History Channel, New York Times, CNN and a lot more.