
Located in Orange County, Southern California, Martin Private Investigation Services will protect you, your family, and your business. Martin Investigative Services has over 50 years of investigative experience, and our private investigators are former supervisory Federal agents.
If you think you need the best private investigators, you must have a serious personal or business issue requiring expert assistance.

Call (800) 577-1080
Private Investigators in Southern California
If you are looking for southern California Private Investigators, you have found the right private investigation company. Martin Investigative Services has been in business for over 50 years and have worked across 50 US states and International. Located in Newport Beach, CA, our private investigators in Southern California have worked in each and every county.
- Los Angeles Private Investigations
- Orange County Private Investigations
- Riverside Private Investigations
- San Diego Private Investigations
When choosing a private investigator, ask the right questions.
Whether or not you choose Martin Investigative Services, ask the right questions so you can hire a private investigator worth their salt. In speaking with Tom Martin, the best private investigator, he will determine your investigative needs and ensure your answer promptly while being cost-effective. Tom Martin’s professional manner is courteous, and he will listen to the details and choose the legal action you need to take.
- Get your free consultation.
Is a private investigator licensed?
California is one of the more demanding states concerning the requirements for private investigators. Currently, California requires the following to become a private investigator:
- A criminal history background check through the California Department of Justice (DOJ)
- 6,000 hours of fieldwork
- Passing a California administered test
Tom Martin has been working as a private investigator for 50 years and has mastered the latest technology while offering free consultations. Your situation is kept as a private matter and all sensitive information is submitted to you and we keep nothing.
Does the private investigator have a background in law enforcement?
A good private investigation company in California will have a background in law enforcement and many years of professional private investigation experience.
- Get your free consultation.
Have a Question on Background Searches?
“Our team of private investigators are former Federal agents with the FBI, DEA, IRS or Secret Service.” Thomas Martin says.
If you have questions or wish any matter clarified, please call our toll-free number at (800) 577-1080 and one of our senior investigators will be pleased to speak with you about our private investigator cost.
I’ve represented individuals and businesses (international and local) for close to fifty years, and I’ve called on Martin Investigative Services more times than I can count, often on a rush basis, for help throughout the world, on a number of different types of assignments. I’ve never been disappointed. I’ve always received swift, cost-effective and USEFUL information, which has wound up “saving the bacon” of our clients and making us shine in their eyes. I recommend them without any reservation.

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Client Testimonials
I’ve represented individuals and businesses (international and local) for close to fifty years, and I’ve called on Martin Investigative Services more times than I can count, often on a rush basis, for help throughout the world, on a number of different types of assignments. I’ve never been disappointed. I’ve always received swift, cost-effective and USEFUL information, which has wound up “saving the bacon” of our clients and making us shine in their eyes. I recommend them without any reservation.
Martin Investigative Services is truly one of the best run organizations we have worked with. Fair, efficient and professional. Tom Martin in particular exudes confidence and experience and isn’t afraid to tell it like it is. That’s something we can rely on.
Successful people know that to be the best, you model the best. I cannot recommend Martin PI any higher! In a five-minute conversation with experienced people you can save thousands by bypassing sales types. They do this by cutting directly to the heart based on years and years of passionate pursuit of best practices and adding massive value to their clients. They are an invaluable part of my team and Tom is my most valued mentor!
Martin Investigative Services has performed background checks, private investigation, surveillance and bug sweeps for our clients. They have also served difficult process in lawsuits. They have performed unquestionably and unfailingly to perfection. We will always call Martin first – and hope he hasn’t been called yet by the other side!
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.
It has been my pleasure to work with Martin Investigative Services over the past 30 plus years on many investigations as well as other security related matters. When I need answers and I need them fast I know that a simple call will get me answers that are succinct, current and coming from a supremely knowledgeable source.
MartinPI Operates throughout the United States and foreign countries
We can have a team ready in 2 days. Are you ready?Our network is composed of private investigators that are former DEA, FBI, IRS, and Secret Service agents.
We respect your time and thank you for stopping by. Please look around and learn about our services. Should you need help today, simply press the button below.

call us today
Martin Investigations is second-to-none!See and hear Thomas Martin speak on various solved cases. After 50+ years, we are ready to help you with your investigative matter.
Start by contacting us and a meeting will be set up. Call (800) 577-1080