We are very proud to be ranked among the Best Los Angeles Private Investigators  and the Best New York Private Investigators by Expertise  due to our superb discrete New York City, Los Angeles Surveillance Investigations over the past thirty years. Being able to conduct a successful surveillance without being detected is a difficult skill to attain as it takes years and thousands of hours to perfect. Not once has a subject we surveilled known they were being surveilled.


When selecting a Private Surveillance Investigator, in Los Angeles or New York try to research their online reputation and reviews. As example Worldwide Intelligence Network was named by Conde Nast, the publishers of Vogue, Vanity Fair and the New Yorker magazines as being among the Five Best Private Investigation Companies in America.

Also check if they are duly licensed as a Private Investigator with the California Bureau of Security and Investigative Services or the New York Department of Licensing.  Worldwide Intelligence Network is licensed in California located in Los Angeles and in New York, located in New York City. We also provide Surveillance Investigation all across the USA and around the world conducted by top rated associate investigators. Below are a few or our reviews, each of them were written by “real clients.” All  of our surveillance investigators use state of the art video equipment.


Employee Malfeasance
Insurance Fraud
Dishonest Business Partners
Minor & Adult Children’s Activities
Drug or Alcohol Abuse
Child Abuse & Neglect
Hijacking of Commercial Trucks and Vehicles

All of our surveillance investigations are kept absolutely confidential. After your surveillance investigation is completed, you will be provided with a video or DVD to document everything our investigator filmed during the course of your investigation. You will also receive a detailed written report that will describe all of the events that took occurred during the surveillance.


Mobile surveillance commences when a subject leaves their home or office by foot, bus, train, Uber or in their vehicle. Our surveillance investigator will follow them from a safe distance to avoid being noticed by the subject. Mobile surveillance is an art and a delicate balancing act for the surveillance investigator not to be seen. Realistically, very few private investigators have the experience it takes unless they have been doing surveillance for years and maintained an excellent record of successful surveillance assignments. They also have to be a superb videographer, which takes years to perfect. Our private investigators literally have thousands of hours of field experience conducting just about every surveillance scenario imaginable. Video filming commences the moment our investigator arrives at the designated location and parks their vehicle. Then every half hour your investigator will videotape their location so you as the client upon receiving a DVD of the surveillance will know your surveillance investigator was on your case during all the hours you requested.

Digital GPS Mobile Surveillance is accomplished by using a device known as a GPS Tracker. The Tracker fits into a sturdy waterproof case that has two powerful magnets that attach the Tracker under the frame of an automobile. Once the Tracker is turned on you will be able to go online to see where the car is, how fast it is going, the route it is taking, and where it stops all on your computer laptop or cell phone. If the car stops and starts for a minute or two, it’s likely stopped at a traffic light. Conversely, if it stops for a longer period of time, the occupant may have gone into a market, retail establishment, a building, hotel or a residence. Businesses use GPS Trackers on company-owned cars to make sure their employees are not visiting competitors or if they are failing to show up at scheduled appointments.  Wives. lovers. spouses, and significant others will learn where their partner is at all times when they suspect they are unfaithful. GPS Trackers are a lot less expensive than hiring a private surveillance investigator but not quite as informative as to who their partner is meeting.

Pedestrian surveillance is often applied in New York City because millions of people take the trains and buses for transportation, and the investigator’s only option is to surveil the subject on foot along a street, in a mall, inside of an office building or hotel. Knowing when to get in the same elevator with a subject to find out who the subject is visiting is a challenging task and requires excellent timing and a keen sense of observation. Many of our New York Surveillance Investigator will take a seat in the lobby or snack bar of a huge office building or in the lobby of a hotel waiting for the subject to check and then follow the subject to their room. Nearly all New York high rise buildings have two or more entrances and exits, which must be observed by two or more surveillance investigators. If you live or work in New York, keep that in mind, when hiring a Private Surveillance Investigator.

Aerial surveillance is conducted from a helicopter at a distance far enough away, but close enough for the subject to be observed and videotaped. Helicopters are noisy; therefore, distance is essential and the pilot has to make sure the investigator maintains sight of their subject’s vehicle. Depending upon the topography and density of an area where the surveillance is taking place, drones can be deployed. The downside is, drones can be unstable due to a power failure, or insufficient height may cause the drone to crash into a tree or power lines. Should the drone’s video equipment fail, it cannot be fixed remotely, nor can a failure be immediately detected. Most of our helicopter pilots are prior law enforcement pilots.


“I cannot thank you and your team enough. Your professionalism is without question. I have used many investigative firms in the past in business when I need information regarding who I am doing business with. I have never used such a firm for personal matters and I must admin that your conduct goes so over and above what others can or are able to do. I walk from this knowing the following: That you are incredible and that I have actually made a new friend who cares about and understands feelings….This above anything else makes this difficult situation easier and makes me smile. Your advice has been invaluable and only through the pleasure of meeting you to say the words of thank you can I truly express my gratitude.” Mr. S.B., Ontario, Canada

I must admit that I was quite anxious and very apprehensive about calling a private investigator. I had conjured up a number of mental images consisting of creepy men in raincoats, fedora hats, wearing dark glasses with binoculars hangings from their necks.  My issue concerned a matter of infidelity whereby I had to determine if it was actually happening and I had to be assured of absolute confidentially because my significant other is a well-known public figure. My nerves quickly dissolved upon speaking with Barbara, the assistant director of the company.  She listened intently and immediately put me at ease because she understood how sensitive a matter this was for me. I retained her company to conduct a infidelity surveillance and at the conclusion of the surveillance assignment the information they obtained was absolutely incredible. All of my concerns were realized and documented by irrefutable video evidence.  Thanks to Worldwide Intelligence Network, I still sleep right beside my significant other who to this day remains true to our relationship. I would not hesitate to call upon Barbara, if I ever required the services of a private investigator. Nancy H. Boston, MA

“Notwithstanding your last minute retention, you immediately grasped the rather complicated legal principles in issue in this first impression criminal trademark case. You appeared in court well prepared, and were the best ‘second chair’ I have ever had the privilege to work with.– Phillip M Prince, Attorney at Law”

“Dualstar Entertainment Group, LLC retained Robert Mann and Worldwide Intelligence Network (“WIN”) to provide risk assessment, residential security design, and implementation and personal protection for Mary-Kate Olsen and Ashley Olsen for a nine-month period in 2002-2003. During that period, personal security and advance security preparations were performed in Los Angeles, Rome, Australia, and Mexico with no adverse security incidents occurring.-Gary S Rattet Dual Entertainment Group LLC”

“It would take a book, rather than a letter, to do justice to your achievements and adequately describe your personal contributions as a fact analyzer, case energizer, attorney inspirer, and truth seeker.-Martin R Pollner Loeb & Loeb”

“It is with great pleasure that I write this recommendation for your services. When my son had run away from home last summer, I feared I would not see him again. Thanks to you and your work, we were able to reunite within days and work out whatever issues had surfaced. Manny and Elena Gonzalez Florida”

“The client and I are extraordinarily gratified and pleased by all of the services you performed…you went above and beyond a typical private investigator’s call of duty – Douglas E Mirell Loeb and Loeb”


We invite you to call us for a Free Consultation (310) 385-8200