Culper Investigations Group

Veteran Owned & Operated

Serving Long Island

Brooklyn to Montauk

About Us

Culper Investigations Group was founded by president and owner Martin Steiger. He is a licensed and Bonded New York State Private Investigator with over 25 years’ experience in both the military and law enforcement communities.A veteran owned and operated company, Culper Investigations Group derives its name from the Culper Spy Ring, an organization which is said to be our nation’s first active intelligence agency. Formed and operated by local residents from the North Shore of Long Island, this group gathered information about British Army operations and movements in and around New York. This information proved to be critical in the success of the Continental Army and ultimately in the formation of a new country “United States of America”.

Private Investigators operate today with basically the same goal in mind — to gather information. The key difference is how that information is obtained. While some of the same techniques are still used, the technology of today offers the investigator far more resources to acquire information.

At Culper Investigations Group we utilize all the resources at our disposal including experienced investigators and the latest technology and equipment to produce a successful case outcome. Our goal is to deliver our clients a superior end product at a reasonable cost.

We offer free consultation along with patience and understanding of our client’s particular situation. We will openly discuss the best possible solution, our strategy, and the costs associated with it. Please take a look at our website and call to speak with one of our experts.


Martin began his law enforcement career with the New York City Police Department in 1986. Over the course of 25 years he has gained the knowledge and expertise in all traditional law enforcement operations and investigative techniques.

Martin’s last assignment with the NYPD was with the Counter Terrorism Bureau. There he held the rank of Lieutenant and performed duty as the Watch Commander in the Lower Manhattan Security Initiative, a state of the art Counter Terrorism Command Center. He was responsible for the supervision of an operations staff of Sergeants, Detectives, Police Officers and Intelligence Analysts whose primary mission is to detect, preempt, disrupt and investigate terrorist operations by using the latest surveillance technology.

Martin also had a long career with the military serving 24 years in the United States Army Reserve. The majority of that time was with the 800th Military Police Brigade, a Long Island Based Unit. Following the 9/11 attacks on the World Trade Center Martin was deployed twice in support of Operation Enduring Freedom (OEF) and Operation Iraqi Freedom (OIF). In January of 2002 Martin received his first orders for OEF where as a U.S. Army Captain he served as staff officer to the Coalition Forces Land Component Command (CFLCC) Provost Marshal, responsible for Taliban and Al-Qaeda detainee operations at theater level.

Martin was once more deployed in 2003 to Iraq with the 800th MP Brigade in support of Operation Iraqi Freedom (OIF). He served as a staff operations officer responsible for Enemy Prisoner of War and Civilian Internee Operations. His duties also included the responsibility and supervision of the Force Protection and security stance at Abu Ghraib, Camp Bucca and other internment facilities throughout Iraq. He was also appointed to serve as a Tribunal Officer for the purpose of conducting interviews and interrogations of detainees eligible for repatriation. Martin retired from the United States Army Reserve at the rank of Major in 2005.

Martin holds a Masters Degree in Security Management from Long Island University and has received extensive training through the Department of Homeland Security (DHS), Department of Defense (DOD), the Department of Energy (DOE) and the Federal Law Enforcement Training Center (FLETC) that include: Hostile Surveillance Detection, Dignitary Protection, Pro-Active Terrorism Recognition Interdiction and Observation Tactics, WMD Radiological/Nuclear course for Haz-Mat Technicians(DOE), Critical Infrastructure Protection Course, Maritime Infrastructure Protection course, Advanced Explosive Trace and Detection Course, Personal Radiation Detection Course, Port Awareness and Incident Management/Unified Command for Terrorism/CBRNE incidents, U.S. Air Force Level 2 Anti Terrorism Course, Seaport Security-Anti Terrorism Training Program.