IT & Security Integration

Let Us Help You Today.

22 North Mulberry Street
Suite 102
Hagerstown, MD 21740

Toll Free 844.433.6360
Local 301.850.0646
Fax 301.329.2302

  • Gary House

    Founder and Solutions Architect

    Gary founded DEM360 in 2013 to fulfill an unmet market of a one-stop shop, 360° of IT products and services. Gary’s experience with commercial enterprises, private interests, government agencies, and Federal procurements makes him a man of many hats, able to solve technology and security problems. You’ll find Gary riding around the office on a hoverboard with coffee in one hand and his cell in another, sending out proposals until 2 a.m., and managing multiple phone calls at once. When he isn’t working, he likes spending time at the lake with his family.

  • Jonathan Strauss


    Jonathan joined DEM360 in 2023 as President to oversee operations, strategy, and finance while executing on the company’s mission of delivering superior IT and security services with a focus on customer service for small and medium companies. Before joining DEM360, Jonathan’s career focused on guiding finance and operations teams in PE backed and publicly traded software and business services companies such as Deloitte Consulting, Deltek, and Spok. When not in the office, Jonathan enjoys time on his bike and being outdoors with his family and Black Lab Ringo. 

  • Joseph Richards

    Senior Project Manager

    Joe is DEM360’s Senior Project Manager. Interacting with clients and company staff, he works to ensure projects are kept on track and on time. When not working in the office or in the field, he enjoys DIY projects around his house, spending time with his grandchildren, or outdoor activities.

  • Marisa Sentz

    Operations Manager

    Meet Marisa! When she’s not working answering phones or emails at DEM360, she enjoys spending time with her family and friends. She loves binge watching anything on Netflix and playing in the yard with her dogs.

  • Fancy Ireland

    Accounting Assistant

    Meet Fancy! Fancy is the Accounting Assistant at DEM360. She enjoys spending time with her family and friends (especially her grandkids). On the weekends, you will find her watching her daughter and grandkids sporting events.  

  • Nick Hill

    IT Service Manager

    Nick has over 17 years of IT experience and is in charge of designing/building out networks and solutions for DEM360’s clients. He helps resolve tickets and can be found talking to clients almost all day long. Nick is a bonafide coffee drinker and enjoys restoring his 1973 Nova in his free time.

  • Matthew Rudy

    Systems Engineer

    You’ll talk to Matt with any assistance resolving help desk tickets. When Matt isn’t working, he bikes and hikes, continues working on electronics and enjoys astronomy and meteorology.

  • Warren Lindemon

    Network Engineer

    Warren is a Network Engineer. He has worked in the field for 20 years doing both Networking and Helpdesk. During his free time he enjoys Building Jeeps, Boating, and all types of DIY. 

  • Shane Reynolds

    Security Technician

    Shane has been working with computers in some capacity for over 20 years, ranging from IT Support, Server Management, Hardware Installation and troubleshooting, and even Video Game Design and Programming.  When he isn't working he loves playing guitar and piano, riding his OneWheel, woodworking, and putting the wrench to his vintage Mustang.

  • Michael Suder

    Junior Network Engineer

    Michael is just getting started in the IT field and is focused on help desk support and other various IT needs in the office. When he’s not working, he enjoys DIY coding projects at home, as well as, setting up servers and building computers.

  • Steve Hixon

    Field Service Manager

    Steve assists in the design and planning of projects involving hardware. He oversees the implementation of projects and makes sure each project is completed on time and under budget. When Steve isn’t in the office, he is busy playing roller derby, taking care of things on the farm, or selling handmade pies at the farmer’s market.

  • Chris Chrislip

    Sr Field Service Technician

    Chris is one of our Sr Field Service Technicians providing technical service and maintenance support at our client locations. He is responsible for installing, maintaining, and repairing equipment out in the field. Chris has 24 years of experience in electronic security. In his free time, Chris likes to play the guitar and ride motorcycles.

  • Devonta Coleman

    Field Service Technician

    Devonta is one of our Field Service Technicians. He assists in installing, maintaining, and repairing equipment out in the field. In his free time, you can find him shooting pool at a local pool hall.