Private Detective Agency

You're actually looking for a private investigative agency.

When individuals refer to a private detective agency, what they are usually looking for is a private investigative agency.

What's the difference between a "detective" and an "investigator"?

"Detective" is a term typically used to refer to police work, popularized by old Hollywood films and serial novels. In the private sector, the term "investigator" is more commonly used.

Martin Investigative Services

Martin Investigative Services is a full-service agency composed of highly regarded and very experienced investigators. All of our detectives are licensed by the state in which they operate. We also employ a national and international network of former Federal Agents, former local law enforcement officials, and industry specialists in the areas of fraud, counter surveillance, missing persons, and information searches to name a few.

At Martin Investigative Services, we hold ourselves to the standard of providing the best possible service and treating our clients with the utmost respect, understanding, and confidentiality. We will be upfront with you about what your options are, what services we recommend for your situation, and most importantly what NOT to spend your time, money and energy on.

As an agency with multiple professionals, each with specific areas of expertise, we offer our clients what few other investigators can: a team-based approach to solving your problems. If your needs go beyond the traditional services we provide, we can refer you to our roster of industry professionals to suit your needs. We work directly with distinguished lawyers and local, state, and Federal authorities to open doors for you.

There are many individual private investigators in the phone book, and for some situations their services can be both effective and relatively inexpensive. But for personal or professional issues that may directly impact the remainder of your life, your family, or your financial future, you need to ask yourself what is more important to you – the cost or the end result. We are here to help.


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

Other office locations:
Los Angeles Private Investigator: 1880 Century Park East, Suite 618, Los Angeles CA 90067 • Google MapYahoo Map
San Diego Private Investigator: 4370 La Jolla Village Drive, Suite 400, San Diego CA 92122-1249 • Google MapYahoo Map