I have known Tom Martin and used his services for many years. I trust him with the most challenging investigative tasks.
Professional and efficient, he and his staff leave no stone unturned to get the job done.

Private investigation can be crucial in establishing the facts surrounding a legal case.
Our investigators are former Federal agents, experts in court, and a cost-effective means of substantiating your case and increasing your odds of winning.
This strategy is effective for criminal cases, civil suits, divorce proceedings, and child custody.
With this much on the line, it’s worth a few minutes to call, and we are always happy to provide confidential and free consultations with no-obligation to you.
I have known Tom Martin and used his services for many years. I trust him with the most challenging investigative tasks.
Professional and efficient, he and his staff leave no stone unturned to get the job done.
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We can provide the following services to support your case:
Martin Investigative Services (State License # PI 9077) is a licensed private investigation agency. Whether you choose us or another firm, always make sure your firm is licensed and legitimate.
Often, there are services that a law firm simply cannot provide. We work closely with your lawyers to understand their litigation strategy, determine how best to build an effective legal case, and take actions to substantiate your case or lawsuit.
Our experienced private investigators are well trained to interview potential witnesses and take their depositions.
This participation in the process can often make the difference between winning and losing a case.
We can help you find the right resources, protect your childrens’ best interests, and reach amicable settlements in divorce cases. Our consulting services cover every facet of Family Law including paternity actions, child visitation rights, child support payments, alimony, joint custody, and enforcement of judgments.
We have working relationships with some of the most respected legal firms in Southern California and across the country. We will provide you with information and advice on legal firms that specialize in your area of need, including Criminal Defense, Family Law, Employment Law, Corporate Litigation, and Civil Law.
We maintain a list of the best law firms in each specialty based on effectiveness, client satisfaction, and integrity.
We also offer consulting and expert witness testimony for both criminal and civil trials in matters pertaining to our core competencies of investigation and corporate security.
As former Federal agents, our private investigators have a great deal of experience in state and Federal courts and are recognized as highly credible experts in their respective fields.
We provide quality investigative services with an unmatched success rate. We provide you with confidence and peace of mind.
Our network is composed of private investigators that are former DEA, FBI, IRS, and Secret Service agents.
Our friendly staff can help with your issue, or point you in the right direction. The consult is free and confidential.
Our experienced investigators provide court-admissible evidence that can make all the difference in a trial.
See more of the benefits we offer you.
Private Investigators most often work with law firms to provide surveillance, witness interviews, anonymous data gathering, asset searches, public information searches, liaison services with local authorities, depositions, background checks, expert witness testimony, and consulting.
Often, there are services that a law firm simply cannot provide. Private investigators work closely with lawyers to understand their litigation strategy, determine how best to build an effective legal case, and take actions to substantiate a case or lawsuit. Some private investigators are trained to interview potential witnesses and take depositions. Some are considered expert witnesses in court.
Private investigators can typically work on all types of cases, including criminal defense, family law, employment law, corporate litigation, and civil law.
We first met our client through a conference call with the client’s family and their attorney, a prominent Orange County attorney.
The client strongly believed that her friend was shot and murdered by her husband. Local police had concluded the case was an accidental shooting.
After a 9-month investigation, our private investigators gathered enough evidence to prove our client’s suspicions were correct. We turned our evidence over to the Orange County District Attorney and the husband was arrested.
Martin Investigative Services has investigated hundreds of cold cases like this one. If you need our help, please contact one of our private investigators us for a free, private consultation.
Thomas G. Martin was quoted in a recent Orange County Register article regarding the late Angels pitcher Tyler Skaggs and the DEA.
DetailsA collection of articles about a recent investigation by Martin Investigative Services which led to the arrest of a famous magazine photographer.
DetailsFormer supervisory Federal agent Thomas G. Martin, owner of Martin Investigative Services, appears on KUSI News to discuss private investigation, surveillance, nannys, personal protection, divorce issues, fraud and other scams.
DetailsLike most retired federal agents, Thomas Martin wears a navy blue suit.
“It’s what we sleep in,” he says.
Old habits can die hard and after a career as an agent, the crisp suit is just one throwback. The other is salty vocabulary that I can tell he’s doing his best to restrain.
DetailsSee all press items.
I have used Martin Investigative Services since returning to the practice of law. Their work is first rate! Their reports are reliable, and if called upon to testify, Martin’s investigators are well prepared and extremely professional.
I have known Tom Martin and used his services for many years. I trust him with the most challenging investigative tasks.
Professional and efficient, he and his staff leave no stone unturned to get the job done.
I have used Martin Investigative Services for everything from marital indiscretions to finding hidden assets for more than 25 years. Working with Mr. Martin has been invaluable to my practice. Tom Martin is insightful, creative and never fails to deliver. I endorse his firm without hesitation or reservation.
We have used Martin Investigative Services for three decades. Their work is exemplary; reports are perfect and their testimony is very professional, with great judge and jury appeal. We will not use anyone else for our investigations.
I have used Thomas Martin’s services for many years and have found his work to be of the highest standards. He gets the job done quickly, efficiently and reliably. He is aware of the law and always submits quality reports. I highly recommend Martin Investigative Services to any attorney, business or individual who is in need of a professional investigator.
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Martin Investigative Services, Corporate Office
620 Newport Center Drive, Suite 1400
Newport Beach, CA 92660
By appointment only.