LONG ISLAND INVESTIGATION SERVICES is a premier, full service investigative firm.

The firm's specialties include performing covert surveillance, locating and interviewing witnesses, and background database searches. We take pride in providing you with timely, thorough investigations. We accomplish this by employing top quality, experienced investigators, and by providing them with ongoing training and state-of-the-art equipment. Our investigators are specifically trained to conduct objective investigations and communicate the results in complete and detailed reports. We are a...

The firm's specialties include performing covert surveillance, locating and interviewing witnesses, and background database searches. We take pride in providing you with timely, thorough investigations. We accomplish this by employing top quality, experienced investigators, and by providing them with ongoing training and state-of-the-art equipment. Our investigators are specifically trained to conduct objective investigations and communicate the results in complete and detailed reports. We are a full service investigation company serving all of the Tri-State area. Our corporate office is located on Long Island, however, we have investigators located throughout New York, New Jersey, and Connecticut. This allows us to conduct investigations for all of our clients in a cost-effective manner