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About GISS
GISS International offers a professional level of security services to a wide variety of clients throughout the New York City/New Jersey Metropolitan area, including Manhattan, Brooklyn, Bronx, Queens, Staten Island, Northern New Jersey, Central New Jersey, Southern New Jersey, and many overseas markets.
In a world that is chaotic at best and with increasing violence at many events, you need someone who is licensed and trained to protect you, your assets and the people you love. At GISS International, we are dedicated to protecting our clients in whatever service they need.
Services available in over 17 languages

We're More Than Your Average Security Guard Company

GISS International is more than just a licensed security guard agency. We provide a variety of services to our clients ranging from armed and unarmed security guards, to training & concierge services. All while proudly serving New York, New Jersey and the surrounding areas.

A Full Range of Security Services
For Everyday Needs

When it comes protecting of the ones you love or the business you’ve worked so hard to build, it’s important to have the best and most trustworthy agency in your corner.

At GISS International, we have you covered. Contact us for a complimentary on-site evaluation to find out how we can protect you and yours from any harm.

Decades of
Fully Licensed
Security Professionals
Experienced Across
Many Industries

    Have questions?

    Robert GottliebExecutive Vice President, William Morris Agency, INC.
    I have had the pleasure of using Olivier DeLaurentiis and his security services on several different occasions. In every situation, whether it is public or private, he has always come prepared and conducted himself and his operation in a very professional manner. It is my pleasure to recommend his company and his services.
    Cole Mac NeillLoss Prevention Consultant, Warner Bros
    I would like to take this opportunity to communicate my thanks for GISS’s assistance during this year’s New Year’s Eve Event.

    The personnel you provided for our 1 Times Square Location were both courteous and professional. Their services were instrumental in assisting us to achieve our goal to provide a secure and safe environment for the annual “Ball” Celebration.

    Please convey my special “THANKS”, to Mr. Michael Mascia, who was on site during the critical times and provided the “backbone” of the service that GISS provided. His contributions and professionalism must be commended.

    I look forward to the opportunity to utilize your company’s service in the future and wish you, and all associated with GISS a healthy and prosperous new year!

    Fred BernathAssociate Dean, Rutgers University
    Over the past few months, our offices have undergone extensive renovations and inconveniences as a result of construction activity in our building. We were displaced from our offices and placed into temporary trailers for the summer months. GISS International has been the on-site security company here during this chaotic and stressful period for our operations.

    I would like to commend you for the top-notch employees that you have sent to work with us, in particular Vince Campbell and Robert Shannon. These employees have been exceptionally patient, accommodating, and have extended themselves to make us feel as comfortable as possible in our constrained environment. Recently, we have moved back into our offices, and still they persist in providing superior customer service.

    As I have grown to know, and I am sure that you know that you possess quality employees working for your organization.

    Richard J. WoolleyProject Manager, HRH Construction LLC
    GISS International has been a security service firm for HRH Construction, LLC since 1998. GISS has recently performed site security services for HRH under my direction during the construction of two 20-story residential apartment buildings in White Plains, New York and we look forward to calling upon them in the future for additional services.

    Both their office and field staff are very courteous and respectful. Their people always report to work on time and always meet our difficult site security requirements 24 hours a day, 7 days a week as needed while acting in a professional manner.

    Furthermore, Mr. Olivier DeLaurentiis is nothing short of a pleasure to work with.