NOS is a minority owned company and many of our solutions are Made in America and readily available on GSA Contract.

“We need partners who are responsive, reliable and bring a high level of professionalism. Denise and her team bring an extremely high level of competence and dedication that eases client concerns all the while providing effective and efficient solutions, always within budget and on time. She is exactly the type of partner we need to be successful.”
GSA Agency, Office of Acquisitions, Design and Construction Director

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About Us

National Office Systems

Profile of Success

Since 1976, the National Office Systems (NOS) team of professionals has been providing our clients with the most affordable and comprehensive storage solutions for both their information and space management. NOS develops a total solution to improve efficiency and organization in any environment. We can dramatically reduce your real estate costs and maximize your space allocation. Our solutions will provide you convenience along with security and sustainability, while leveraging your information and governance.

  • Comprehensive storage solutions offer a wide range of features to double your storage capacity within your existing or new space.
  • Digitization Solutions for today’s business world. Imagine accessing your files securely, any place, anywhere at any time.
  • Asset Management Solutions help you store, organize, manage and protect your most vital assets.

NOS has been serving the Washington DC, Maryland and Virginia market for over forty years. Our client list (over 10,000) includes legal firms, government agencies, corporate offices, museums, education, public safety and associations to name a few.

The NOS Identity

Joe Alvarez, a Hispanic-American entrepreneur, and his business partner Dan Harbison Sr., purchased National Office Systems-(NOS), in 1991. Joe had previously worked for NOS as an installer while in high school and college. Together, they have built a successful, expanding company exceeding 10,000 installations. They share key responsibilities, including the overall management and direction of the company. Joe primarily focuses on sales and marketing, as well as being the lead ambassador for business development. Dan’s primary responsibility is the daily management of business operations, along with a laser focus on the development of technology products.

In January 2023, Joe Alvarez, Danny Harbison, and a private investment group acquired Dan Harbison’s ownership shares. Joe Alvarez and Danny Harbison have partnered together to continue the success that NOS, a now minority-owned company, has delivered to the Mid-Atlantic region through innovative solutions that redefine space and manage information. Dan Harbison begins 2023 enjoying his well-earned retirement, while his son Danny is enthusiastic about his new role as Partner. “I am fully engaged with driving the process in providing best-in-class solutions. My immediate charge is to continue growing and improving our technology offering to ensure NOS is providing our clients and partners an efficient and effective solution to meet their business needs,” says Danny Harbison, Vice President.

Year after year, NOS has appeared in the Top Furniture Companies for the Washington Business Journal Book of Lists. In addition, the company has been voted a top 53 company by the P & B Gazette. 

NOS, a minority-owned company, is one of the premier providers of specialty storage systems in the nation. Both leaders are passionate about overseeing the corporate vision and growth, including new business ventures such as: 

  • Glass/demountable wall installation services
  • Technology products such as asset management utilizing RFID software
  • Document digitization software and services 

Today, all three business units are thriving and are an integral part of the company’s success.


    Meet the Team

    The NOS team has the knowledge, experience and products to help you achieve success through efficiency and organization. Our goal is to exceed our client’s expectations at every opportunity. Rely on the professionals at NOS; let us show you how we can optimize your work environment today!

    Joe Alvarez

    Joe Alvarez

    Danny Harbison

    Danny Harbison

    Chris Montgomery

    Harry Commarata

    Harry Commarata

    Denise Cruz

    Matt Galvin

    Karen Adams

    Dave Nagel

    Scott Rowan

    Scott Rowan

    JD Diaz

    JD Diaz

    Danny Harbison

    Freddie Duffey

    Kevin Ward

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