REHco OnSite
- Cumberland firm that designs and services computer systems, provides consulting services, software design, web design, data management, and on-site training.
- http://www.rehco.net/

PC Technologies
- Kingsville. Offers on-site computer repair, wireless networking and website design services. Find company profile, available services and rates.
- http://www.pctechnologiesmd.com/

Wolff Electronic Systems, Inc.
- Software development, IT support, e-commerce and network solutions, web design and hosting. Located in Germantown.
- http://www.wesnetwork.com/

Enso Technologies, Inc.
- Rockville technology consultants providing information technology deployment and design infrastructure services.
- http://www.ensotech.com/

Clearshard IT Solutions
- System and storage management, web development.
- http://www.clearshark.com/

Tidewater Computer & Internet Solutions
- Huntingtown based consultant provides on-site technical support for computer hardware, software as well as Internet services.
- http://www.onaclearbay.com/

NetData Services
- Provides network installation, on-site service, and Internet solutions to clients in Central-Western Maryland and Eastern West Virginia from Frederick
- http://www.netdataservices.com/

Data Connect Enterprise
- Specializes in recommending, providing, servicing and supporting a broad range of both wide-area and local-area connectivity products.
- http://www.data-connect.com/

Dataprise Inc
- Network services, support and maintenance. Based in Rockville, MD and serving the Mid-Atlantic Region.
- http://www.dataprise.com/

EntraCom Consulting and Service
- Independent technology consultant providing computer and network support services located in Laurel, Maryland.
- http://www.fix-pc.com/