First Class Service NAI and Darrin are first class all the way. Unfortunately, had to do some surveillance and came across Darrin's reviews. From the moment I spoke on the phone with Darrin, I had a great comfort level and knew the job would get done properly. Attention to detail and thoughtfulness of questions and background information all very precise and timely accurate reporting. I could not recommend Darrin and NAI more, and will use them again if need be! Thank you!

NAI is Professional, Fast, Effective I'd tried various online data sources to track down someone who had agreed that he owed me a mid-five-figure sum, and then disappeared. NAI found his new location in one day- a gated situation, so serving papers on him may be difficult. NAI has been a helpful advisor in discussing next steps.

5 stars not enough 5 stars not enough, I’ll give them 10. My family and I going through a horrible probate court case, to make a long story short we needed a background investigation on a woman claiming to be a Registered nurse. I called NAI not knowing what to expect. I spoke to Darrin and I know I was nervously rambling on. Darrin was so calm, cool & professional, took some information and 10 days later we had what we needed. Can’t speak enough on how professional Darrin and the staff were.

The Best There will never be enough words or the right words to express my gratitude. I dealt with Darrin who was always available to work with me regarding my husband's infidelity. Darrin had compassion and empathy while helping me thru this terrible time. I felt very lost and Darrin helped me see what was going on. If it weren't for him and his team I would be stuck feeling like I'm crazy and paranoid but now I know the truth. I'm forever grateful and would recommend this company to anyone who had any doubts about their personal life.

Mine was a missing person case Mine was a missing person case. It was my son. He had been missing and my daughter-in-law only alerted me 3 or 4 days later. Having been in touch with the Suffolk County Police Department in New York, I realized nothing was getting done because my son was an adult. I searched for a private investigator online and found Darrin Giglio and his company. It was the best result. Darrin and his team ended up finding my son’s body and that of another young victim AND was able to determine who was responsible for this heinous murder. All the evidence was then turned over to local law enforcement. The perpetrators were convicted and sentenced. With Darrin’s team, NOTHING would have been done and I would’ve been left with a missing son all these years and the criminals would’ve still been on the streets! Just a last word: my choosing Darrin and his team, in my opinion, was a Godsend!