Today’s Adversaries & Challenges Are Multifaceted– We Provide an Asymmetric Advantage.

For over 25 years, Mccann has armed people and businesses with the information to remediate and retain control of any situation. We use a blended approach of traditional and digital forensics, investigation, intelligence and security. If contacted soon enough, we can often solve your problems before they even go to court. Get the personal justice and protection you deserve.

We Wrote The Book. We Know All The Players. We Run The Latest Tech.

Cyber attack risk for businesses of all sizes has never been greater, Every day criminals leverage new technologies and methods to perpetrate their crimes. McCann stays one step ahead of the criminals; deploying bleeding edge technology to remediate damage and deter attacks. Our international network of highly trained operatives takes the fight directly to the perpetrators.

When you have a problem, and no one else can help: McCann.

Do you need help with a highly sensitive matter? Leverage our expert team of security, intelligence and legal experts to gain clarity, stability and control. From divorces to missing person cases and extortion – you no longer need to feel vulnerable and alone.


Total Security Solutions with McCann

McCann Investigations is a one source solution for comprehensive case management. All McCann Private Investigators are licensed in the various states in which they serve and have extensive experience in the field. McCann Investigations was founded by Jack McCann over 25 years ago in New York, New York, and has provided private investigative services to law firms, public companies, private companies, government agencies, and individuals.


McCann Investigations begins each case with an in depth client assessment of the project parameters and objectives.  Based on these objectives, McCann Investigations will prepare a cost effective proposal that will meet the client’s goals and time schedule.  McCann Investigations will provide detailed reporting based upon client’s objectives.

McCann Investigations is a fully licensed Private Investigations firm with offices in Texas (TX License C15690), New York (NY License 11000120404), and New Jersey (NJ License 5271).


McCann continually engages the important topics that are most relevant to our clients.  McCann publications provide insight and information to our clients with our white papers, guides and case studies.  All publications are available in iTunes, Paperback or FREE digital download.

What our Clients Say


Joseph M. Guinan, Jr.

CEO, Advantage Futures

McCann Investigations offer the highest quality service coupled with discretion and the reasonable pricing everyone appreciates.

John J.

McCann Client

I suspected that my wife was having an affair and that she had been meeting men on dating sites. McCann’s investigators were very sensitive to my situation. Their investigation was very detailed with both examining her computer and tailing her to gain photographic evidence. Thanks to McCann Investigations, I got the evidence that I needed and I filed for divorce.

Mary S.

McCann Client

I was going through a very difficult divorce. Once my attorney presented the data that McCann Investigations had recovered from my husband’s laptops, and smart phones, my now ex-husband settled our divorce in mediation.

Tim Johnson

General Counsel, Peak Completions Technologies, Inc.

McCann’s expertise in both traditional investigations, such as surveillance and undercover work, and modern digital forensics, such as computer and mobile forensics, make them my choice when we require the best investigative team.

Rick Fisher

Global Security Director, CB&I (NYSE: CBI)

McCann has been a highly valued investigative partner to us for many years. They go beyond the call to provide quality information and executive protection services for us. I can always count on McCann..

Blair Garrou

Managing Director, Mercury Fund

McCann is our source for backgrounds, due diligence, and investigations. They are timely, insightful, and resourceful. I suggest our business partners also use them because I know I can trust the information.

Micheal Lehane

CEO, Keais Records Service, Inc.

McCann is our go-to source for computer and mobile forensics. They find what others simply have not been able to do. I highly recommend McCann as a digital forensics provider. They are simply the best in class.

David Ducote

Partner, Tchoupitoulas Partners, LLC

McCann helped to resolve an intense and complex fraud investigation. They provided insight and work product that added tremendous value to a difficult situation. They are my go-to investigator.

Karl Oswald

CEO, Jackrabbit Steel Products, Inc.

We use McCann as our investigators for complex situations that require the highest level of confidentially. They always deliver.

Carlos D.

McCann Client

My competitors had confidential information about my company that was only discussed with very few people. I called McCann Investigations and they came right away. They were very professional and courteous. They were able to find that my office indeed had a listening device and I was able to take the proper steps to report this to law enforcement.

Jane D.

McCann Client

Somehow my soon to be ex-husband knew confidential information that I had only discussed with my attorney. I suspected that he had planted some sort of listening device in my home. I called McCann Investigations, and they did a complete bug sweep of my home, office and vehicle. Not only did they find that he had planted a recording device in my home, he had also placed a GPS device on my car.



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