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Small Corporate Member Small Business

Greystones Group
Member Since: 2012 
100 M Street SE
Suite 914
Washington, District of Columbia 20003


Founder and Chief Executive Officer:
Sheila J. Duffy

Business Focus:
Greystones Group is a woman-owned, small disadvantaged business, known for quality performance and solutions excellence. Founded in 2000, we have a proven track record with Fortune 500 companies and DoD agencies. Ninety percent of our growth is from existing customers who have experienced our exceptional service first hand.

cyber analytics support, multinational inter-operability assessment and planning support, software development, data management, training support, and operational and functional analyses

NAVSEA SEA 04, NAVSEA SEA 21, NAVSEA Sea Systems Security Assistance Council (SSSAC), Office of Naval Research, US Army, Army Security Cooperation Division, US Army Cyber Center of Excellence, US Army Cyber Command/2nd Army, Defense Intelligence Agency, General Services Administration, The National Guard Bureau, VeriSign, AOL and the World Bank

Access to Contract Vehicles:

ISO 9001:2015 Certification CMMI Services Level 3 Appraisal

Small Business Status:
  • Small Business
  • Woman Owned
Business Categories:
  • Application Service Providers
  • Consulting
  • Cyber
  • Education
  • Electronic Warfare Systems
  • Engineering & Technical Support
  • Information Management
  • Network Management
  • Professional Services
  • Software Engineering
  • Training

NAICS Industry:
  • 541611 - Administrative Management and General Management Consulting Services
  • 519190 - All Other Information Services
  • 611699 - All Other Miscellaneous Schools and Instruction
  • 541513 - Computer Facilities Management Services
  • 541512 - Computer Systems Design Services
  • 423430 - Computer and Computer Peripheral Equipment and Software Merchant Wholesalers
  • 611710 - Educational Support Services
  • 541330 - Engineering Services
  • 561210 - Facilities Support Services
  • 541613 - Marketing Consulting Services
  • 561110 - Office Administrative Services
  • 541519 - Other Computer Related Services
  • 541618 - Other Management Consulting Services
  • 541690 - Other Scientific and Technical Consulting Services
  • 541614 - Process, Physical Distribution, and Logistics Consulting Services
  • 611430 - Professional and Management Development Training
  • 541712 - Research and Development in the Physical, Engineering, and Life Sciences (except Biotechnology)
  • 336611 - Ship Building and Repairing
  • 541930 - Translation and Interpretation Services

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