Missing Person Resources

Gather as much relevant information as possible.

At Martin Investigative Services, we specialize in reconnecting people when other methods fail. We use proprietary databases combined with an element of human interaction to determine the best means of finding and corroborating information that is in all likelihood not available to the general public.

Missing person

Before you go down this path, our recommendation is to first try to gather as much relevant information as possible including:

  • Birth date (or approximate age if necessary)
  • Social Security Number
  • Passport number
  • Drivers license number and state of issue
  • Known residences or mailing addresses
  • School attendance information
  • Maiden name, or possible name changes
  • The same information on parents and siblings, if possible

Once this list is gathered, we recommend first trying some rudimentary internet searches. There are many databases available online for free or for a modest fee that will enable you to look up phone numbers or addresses with some combination of the information listed above.

If these simple searches do not produce the results you need, Martin Investigative Services is available for a consultation on your specific situation. We will provide you with expert advice on the probability of finding the person you seek and explain the services and fee structure for doing so.

There is never a fee for a consultation with one of our staff members: (800) 577-1080


Call us any time, or use our contact form.

We have literally located thousands of individuals for our clients. Our opinion is that if we can’t find the person you seek, no other company can.

National investigation services, California offices

Martin Investigative Services offers full-service investigation for corporations, businesses, celebrities, and other individuals across the United States and abroad. We are headquartered in Orange County, California, with offices in Newport Beach and Mission Viejo. We also have offices in Los Angeles and San Diego. Read more about Martin Investigative Services.


  • Surveillance: Marital, Workers Comp, Insurance
  • Unsolved Crime and Cold Cases
  • Asset and Background Information Searches
  • Locating Friends and Family

Martin Investigative Services

(800) 577-1080 • (949) 644-2200

State License # PI 9077

Orange County, California offices:
Newport Beach: 620 Newport Center Drive, Suite 1030, Newport CA 92660 • Google MapYahoo Map
Mission Viejo: 25909 Pala, Suite 300, Mission Viejo CA 92691 • Google MapYahoo Map

Other office locations:
Los Angeles: 1880 Century Park East, Suite 618, Los Angeles CA 90067 • Google MapYahoo Map
San Diego: 302 Washington, Suite 247, San Diego CA 92103 • Google MapYahoo Map