Custom Software Systems, Inc. (CSS) is a certified HUBZone and Woman Owned Small Business (WOSB) IT services business which was founded in 1990. CSS specializes in developing and implementing Custom Software Solutions and IT Support Services which deliver high value to our customers. Our skilled professionals help our clients/partners integrate technology that fits their business needs. We link the most cost effective, innovative and sensible solutions to our client’s business. We currently provide services to several Federal Government agencies both as a prime contractor and subcontractor. In addition, we provide services as a prime contractor with the State of Maryland.


Custom Software Systems, Inc. (CSS) is an SBA certified HUBZone and woman-owned small business (WOSB). We have served as a trusted partner to Federal government clients for over 30 years. CSS has extensive experience delivering information technology services to organizations that include the Federal Financial Institution Regulators, U.S. Patent and Trademark Office (USPTO), U.S. Department of Justice (DOJ) and U.S. Treasury Bureau of the Fiscal Service (BFS).

As both a prime and subcontractor, we understand the intricacies of doing business with the Federal government. We provide experienced personnel and quality services in both capacities–Teamwork gets the job done. We have experience responding timely to task orders, recruiting qualified professionals, communicating effectively, and forming meaningful partnerships. Our goal is to provide best value by building a skilled team to perform in alignment with each agency client’s requirements and mission.

View our GSA Multiple Award Schedule (MAS) by clicking here: GSA MAS Schedule GS-35F-0468Y

Additional Information:


Custom Software Systems, Inc. (CSS) is a Small Business under the State of Maryland’s Consulting and Technical Services+ (CATS+) contract. The objective of this 15-year Master Contract is to enable the State to procure IT consulting and technical services in a timely and economical manner by issuing task order requests specific to its needs.

CSS currently provides services to the Maryland Department of Information Technology (DoIT) in support of the State’s implementation of an Enterprise Budgeting System (EBS). In addition, we have provided Business Intelligence support to the Maryland Motor Vehicle Administration (MVA) and Department of Health and Mental Hygiene (DHMH).

View our Contract information by clicking here: CSS CATS+ Master Contract


As an SBA certified HUBZone small business, Custom Software Systems, Inc. (CSS) believes in building up our community.

We work closely with the Town of Leesburg Economic Development Department, Loudoun County Department of Economic Development and the local small business community via the Mason Enterprise Center to work within and improve our designated HUBZone.
HUBZones (Historically Underutilized Business Zones) are by definition economically disadvantaged areas.

To find out more about the HUBZone Program click here: Leesburg HUBZone Program