Mission Statement

We pride ourselves in significant technical and social accomplishments which attract the best engineering, administrative, and managerial talent to our company. We employ a diverse workforce. We conduct ourselves in a manner such that our employees know we positively impact their lives. We offer superior value to all of our customers. We invest in American communities. Individuals who desire skills development and employment opportunities benefit from our work force initiative. We continually increase our market position as a Federal contractor and we are recognized by our peers and customers as a leader in the business community.



Rose V. Zarcaro


Michael F. Zarcaro


Larry B. Strader


Rosanne L. Zarcaro

Director of HR

Robert York-Westbrook


Our strengths include the following:

  • Engineering and Technical Services
  • Software Independent Verification and Validation Services
  • Print, Duplication and Mail Services
  • Configuration and Data Management Services
  • Program Integration and Change Management
  • Facilities Operations and Maintenance

We also have experience/expertise in the following areas:

  • Systems Engineering and Integration
  • Real time software development and verification
  • Laboratory Operation and Maintenance
  • Test and Evaluation
  • Logistics and Inventory Management
  • Risk Management
  • Enterprise application development and maintenance
  • Technology Management and Transfer
  • Training Development and Administration
  • Help Desk services
  • Quality Assurance
  • Robotics and Spacesuits


To support federal agency requirements, GCS has multiple Facility Security Officers and is a designated Top Secret Facility.


  • The SBA Historically Underutilized Business Zone (HUBZone) program is designed to rebuild disadvantaged communities by encouraging:
    • Capital Investment
    • Job Creation
  • GCS employs a diverse workforce and positively impacts the lives of our HUBZone-resident employees
  • GCS has successfully recruited qualified HUBZone residents for a variety of administrative, technical and engineering positions.
  • GCS has entered into agreements with communitybased organizations to revitalize the communities in which we live and work.

Awards & Recognition

  • 2018 JSC FY 2018 Center-Level Small Business Industry Award Winner—Small Business Subcontractor of the Year
  • 2018 NASA Johnson Space Center “Super Nova” Award for Excellence in Safety
  • 2012 NASA Johnson Space Center Small Business Prime Contractor of the Year
  • 2009 Congressional Recognition from Congressperson Sheila Jackson Lee for STEM outreach
  • 2008 NASA Johnson Space Center HUBZone Contractor of the Year
  • 2005 NASA Public Service Medal awarded to GeoControl Systems President, Rose Zarcaro


  • 541715 — Research and Development in the Physical, Engineering, and Life Sciences (Except Nanotechnology and Biotechnology)
  • 323111 — Commercial Printing (Except Screen and Books)
  • 541330 — Engineering Services
  • 561210 — Facilities Support Services