NSG is a family owned service business headquartered in the Kroger Building in downtown Cincinnati.  Since 1988, NSG has specialized in highly trained, unarmed guards and mobile patrols.  NSG has distinguished itself through experienced leadership, unrivaled personal attention and a commitment to technology and innovation to deliver better services and value, every day.


Call Us Today! (513) 621-5018


There’s a reason our clients keep coming back to us!  You can rely on the NSG difference including:

  • Responsiveness – Unlike national providers, NSG is a local team of managers that are always available to speak to you in person. Frequent site contact is performed by the director of security and top leadership is always available if needed.
  • Experienced – NSG guards and management have extensive training in the latest safety and security issues.  Our security team is highly trained in emergency scenarios and safety protocols.
  • Management – At NSG, our philosophy on guard training is to deliver robust yet easy to execute procedures that ensure our guards will make the best choice in every situation.  Our techniques have proven successful in reducing guard errors and keeping clients satisfied.
  • Accountability – Guards are trained to provide Daily Activity Reports in real time at the end of each shift.  Bar code watch tours are also available to ensure consistency.
  • Local – NSG is located in the Cincinnati’s central business district and understands the NKY/Cincinnati market.  NSG has built a strong relationship with local law enforcement and is connected and actively participates in several downtown groups promoting safety, including  DCI (Downtown Cincinnati Inc., now part of 3CDC), the Fusion Center (a division of Ohio’s Department of Homeland Security) and BOMA (Building Owners and Manager’s Association).  These relationships make NSG stand apart from our competitors and strong partners to neighbors/clients.

Discover facts about NSG Janitorial Services.

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NSG has decades of experience delivering quality guard services and the value you can count on!

You can reach out for an affordable, 100% free, no-obligation via the Contact Page on the website, telephone on (513) 621-5018, or via email on sales@nsg-inc.com. NSG is located at 1014 Vine Street Suite 2400 Cincinnati, OH 45202 and has proudly been part of the Cincinnati community for almost four decades.

Contact us using the form below or call (513) 621-5018.


Why clients prefer NSG Security Services

Custom Services

Customize specific security programs to meet your individual security needs.


Provide unarmed security services by management professionals who have extensive training in the latest safety and security issues.

Fire & Safety

Help you develop and manage fire and safety programs.


Enjoy the confidence and peace of mind that comes with our 24/7 professional security service, including personal and digital security surveillance.

Frequent Contact

Provide frequent site contact that is performed by NSG’s own director of security.

Digital Reporting

NSG’s mobile device enabled security personnel provide realtime location and status reports online, 24-hours a day.

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The NSG Difference

  • Decades of experience delivering quality services and value you can count on
  • Integrated services and in-house expertise for all your facility needs
  • Customized building services, tailored to your requirements
  • Experienced leadership to consistently improve quality and performance
  • Leadership personally selects our people to ensure high-quality employees
  • “Fanatical focus” on personal attention for long-term client satisfaction
  • Technology enhanced services offer 24/7 reporting for better service insights

Call Us Today! (513) 621-5018

Contact NSG Today

Experience the NSG Difference.

Contact NSG today to learn how your business will benefit from our Complete Building Services, now and in the future.

Contact NSG Today