North American Investigations
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North American Investigations We are a licensed and bonded private investigator firm that has been conducting professional investigations and surveillance worldwide for over 45 years. We have the private detectives, resources, and knowledge you need for any one of our personalized services. NAI has set the standard in the industry with our proven methods and results. Our private investigators have the credentials and expertise needed, having solved thousands of cases for our clients.

We will gather the evidence needed to solve your case. With thousands of satisfied clients, we are the private eyes to count on for help. North American Investigations has the best private investigators in New York City, America, and around the world. Being one of the oldest and largest firms in the nation, we have been conducting investigations and solving cases for over 45 years across the United States.

We have locations on Long Island, in New York City, in New Jersey, in Connecticut, and in Los Angeles and others stationed internationally.
Highlights

read more › We are a full-service, licensed and bonded New York private investigation agency that has been conducting professional investigations and surveillance worldwide. Our New York private investigators and private detectives have worked on numerous cases featured in some of the most respected news media. We perform cases locally, nationally, and internationally handling numerous, and difficult types of investigations with various scenarios. All casework is specifically designed for the individual case and clients needs.

read more › NAI has provided thousands of clients with a wide variety of solutions, which means that when you hire us, you're going to benefit from a team with the experience, knowledge, and skills best suited for your unique situation. Our expertly trained staff is comprised of former federal agents, police detectives, and seasoned private detective veterans. Whether your case is local, national or international, we have the resources to handle it. Regardless of the reason, you need trained professionals to provide you with personal or electronic surveillance services.

read more › One of the best reasons to hire a private investigator is for his or her experience and skill in modern surveillance. Surveillance refers to a close observation of a person or group to monitor their activities to gather evidence and meet the objectives of the case. Surveillance is difficult and takes years of practical application in order to be effective. It is never recommended that someone other than licensed private investigators perform surveillance as most states have laws preventing it (stalking and Harassment).

read more › Our infidelity division consists of licensed private investigators who are experts in investigating cheating partners and who know the exact steps to take in order to uncover the truth for our clients. Ultimately, we are here to find the evidence you need and deserve to know about your relationship. Matrimonial investigations and infidelity investigations are performed in order to determine if a person's spouse, partner, or significant other is unfaithful or committing adultery. If you are unsure your spouse is cheating, we recommend reviewing signs of a cheating spouse prior to calling an investigator.

read more › Missing persons investigations and locate investigations are conducted to find someone, locate their whereabouts, and uncover the contact information of a subject. While it can be a suspicious disappearance, it can also be as simple as someone who has run away or just an old friend you have lost contact with. There are many reasons you may need help to find a missing person, and there are times when you need professional help that does not involve the police. Internet database searches that are keyed in by clerks result in out of date, false, imprecise, and useless information.

read more › NAI detectives at our New York City, Long Island, New Jersey, Connecticut, and California locations have a high degree of observation and surveillance experience with the abilities to adapt and improvise at a moments notice. North American Investigations has been hired by individuals and companies for over 45 years. The kinds of investigations we conduct vary, as do the ranging experiences of our private investigators. Our licensed private detectives are trained in the most up-to-date best practices and are able to utilize the technology, information sources, contacts, and skills needed to complete their assigned investigations.

read more › North American Investigations is New York's leading industry expert in the private investigation field. Our firm offers an array of services, but our New York City office primarily specializes in surveillance investigative services. We understand what our clients are looking for and know how to deliver the best results possible because your peace of mind is paramount to us. Hiring a private investigator can be a decisive way to solve some very sensitive or tough situations. A private investigator's primary role is to gather evidence and information that can be used in court and support the investigation's claims.

read more › We're Manhattan's most respected private investigations firm. That's why we've been featured in the New York Times, the Wall Street Journal and other leading publications. No one comes to us because they're happy. Our clients are faced with difficult problems that need to be resolved before they can move on with their lives. You need someone you can count on. Someone with a clear head that knows how to gather the evidence you need, safely and legally. Through a combination of surveillance, research and investigation we collect evidence that can be used in a court proceeding.

read more › For private investigation needs in the state of New Jersey, North American Investigations provides the best, most trusted, and reliable service that you can find. We are fully licensed and bonded, assuring you of utmost professionalism, trustworthiness, and accountability. We have solved thousands of cases over the past decade in the entire New Jersey area, covering North Jersey, Central Jersey, South Jersey and the Jersey Shore. While we provide complete private investigation services for a variety of needs, our professionals in our New Jersey office particularly specialize in child custody and missing persons cases.

read more › We were recently nominated as the Best of Long Island, and we've been mentioned in the New York Times, New York Post and Wall Street Journal. We understand what our clients are looking for and know how to deliver the best results possible. We're here to bring you peace of mind. Based out of Mineola, NY, we offer a variety of investigative services, but our Long Island branch focuses mainly on surveillance and infidelity investigations. Our investigators serve all Nassau County & Suffolk County, including Great Neck, East Hampton and South Hampton.

read more › North American Investigations is New York's leading private investigation firm. We've been mentioned in the New York Times, New York Post, Wall Street Journal and other top publications. Based out of Scarsdale, NY, our Westchester County office can help you with surveillance, infidelity, missing persons or other investigations. Our company has been in business for over 45 years and has solved thousands of cases, all with great care and discretion. We understand what our clients are looking for and know how to deliver the best results possible.

read more › Our Connecticut private investigators have the necessary credentials, expertise and experience to successfully solve any kind of case. We are here to help you find peace of mind in your time of need. We specialize in thorough insurance investigations and fraud investigations, in addition to handling a number of surveillance investigations. The counties our investigation services cover include Fairfield County, Hartford County, Litchfield County, Middlesex County, New Haven County, New London County, Tolland County, and Windham County.

read more › North American Investigations is one of the northeast's top private investigation firm. We've been featured in the New York Times, New York Post, Wall Street Journal and other top publications. Our Rhode Island office can help you with surveillance, infidelity, missing persons or other investigations. We've been in business for over 45 years. During that time we've solved literally thousands of cases, all handled ethically and discretely. Whether you need to find a missing person, are having issues with infidelity and cheating, need help with child custody, are a victim of fraud, or need to check a person's background, our detectives can help you.

read more › Our private investigators in California have the credentials, expertise and experience required for your investigation. By hiring our services, we can give you the peace of mind and the security that you need. Whether it's a simple background check or an accident investigation, North American Investigations can handle it. We cover central California, the San Francisco Bay Area, the Central Coast, the South Coast, and primarily Los Angeles, Beverly Hills, and Hollywood Hills. NAI's private investigators in Los Angeles are here to help find the proof you need for any case you are looking to conduct.

read more › North American Investigations Chief Investigator, Darrin Giglio, is the leading expert in the private investigation industry. Giglio's caseload includes everything from surveillance investigations, infidelity investigations, missing person investigations, child custody, criminal cases, to an array of additional investigations. With over 25 years of experience in the field, Giglio and his team have uncovered evidence for thousands of cases, leading clients to the truth they have been searching for.

read more › North American Investigations, Inc. offers a one-on-one consultation with Darrin Giglio, our Chief Investigator at no cost to you. He will discuss your options and answer your questions, explain in detail the proper steps needed to be taken for your investigation, and be transparent about fees needed to retain us for your investigative needs. From former federal agents to retired police detectives and expert investigators, our agents have what it takes. At the end of the investigation, you receive a comprehensive report compiled by the investigators conducting your case.

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