• HUBZone location in the heart of Chinatown, Washington DC
  • Headquartered in Historic Downtown Leesburg, VA
  • socialize IT
  • mobilize IT
  • globalize IT
  • IT Products and Solutions

Who We Are

Strong Castle, Inc. (formerly Signet Computers, Incorporated) is a Department of Veteran Affairs (VA) Center for Veteran Enterprise (CVE) verified Service-Disabled, Veteran-Owned Small Business (SDVOSB), Small Business Administration (SBA) certified Historically Underutilized Business Zone (HUBZone) and a Commonwealth of Virginia Small, Women, and Minority (SWaM) certified Minority-Owned Small Business. With more than 100 years of combined experience, the executives at Strong Castle, Inc. offer exceptional management consulting, information technology products and professional services.

With a principal office in a HUBZone in Washington, DC and headquarters in historic Leesburg, VA, Strong Castle, Inc. proudly serves the US Federal, state and local government marketplace.
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What We Do

Strong Castle, Inc is a Service-Disabled, Veteran-Owned Small Business (SDVOSB), a Historically Underutilized Business Zone (HUBZone) company and a Minority Owned Small Business that has been providing Information Technology solutions to commercial and Government clients since 1994. Strong Castle, Inc specializes in Internet Configuration and Security, Network Design and Configuration, Help Desk Support, Configuration Management, Applications Development, Database Interfaces and Web Enabled Services.
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Latest News

2012 Department of the Treasury “Small Business Prime Contractor of the Year”

December 10, 2012 – Strong Castle is proud to be named the Department of the Treasury “Small Business Prime Contractor of the Year” for 2012.   This esteemed award goes to a small business that excelled during the past year in the performance of its contract.

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Corporate name officially changed to Strong Castle, Inc

October 26, 2012 – Corporate name officially changed to Strong Castle, Inc