
Grid Square Holdings LLC is a Colorado-based service-disabled veteran-owned small business established in 2025 to support federal cybersecurity and IT programs. We deliver strategic program office support - procurement analysis, authorization guidance, and modernization planning - that prevents costly mistakes before budget commitments are made.
We operate at the decision-making level where tool selections, authorization strategies, and modernization approaches are determined. Our work focuses on preventing the problems that trigger contract modifications, budget overruns, and failed implementations.
Grid Square Holdings operates federal government contracts under the registered DBA Sentinel Cyber Defense Solutions. This federal contracting division maintains the same CAGE Code (17M64), UEI (FD56L6NP71J4), and SDVOSB verification as the parent company.

Grid Square delivers analysis within original contract scope and budget. We don't produce roadmaps requiring follow-on contracts to implement. We don't recommend tools we profit from selling. We provide the independent assessment that supports defensible program office decisions.
Small business structure enables direct access to decision-makers and rapid response to requirements. Strategic experience enables operation at the level where procurement, authorization, and modernization decisions are actually made.

Grid Square Holdings is led by a 20-year Army veteran with DoD cybersecurity experience supporting federal programs. Clearance eligible with CISSP certification and operational background in authorization, defensive cyber operations, and security architecture.
The company maintains a network of advisors with expertise across federal operations, state and local government contracting, logistics, and technical writing - providing strategic guidance without the overhead of permanent staff.

Dr. Gayle Byrd serves as Senior Advisor for Communications and Proposal Development. With a Ph.D. in English Literature, she brings expert-level capability in technical writing, editing, and developing transparent, compliant, and compelling proposal narratives for complex government solicitations.

A U.S. Navy veteran, Jayson "Jay" Byrd serves as Senior Advisor for State & Local IT Operations. He brings nearly two decades of experience managing IT infrastructure and support services for the State of California following his military service, and his combined expertise in federal and state government IT provides valuable insights into public-sector contracting opportunities.

A U.S. Air Force veteran, Awanju “Wan” Tennyson serves as Senior Advisor for Logistics and Supply Chain Management. With over 30 years of leadership experience in commercial and retail logistics, he provides expert guidance on asset management, distribution, and procurement strategies for government supply contracts.

Serving as Senior Advisor for Public Sector Strategy & Engagement, Mabari Byrd brings extensive leadership experience from his work with the City of Philadelphia. He provides strategic guidance on navigating municipal procurement, fostering community engagement, and managing public-facing projects.

Darase Byrd is Subject Matter Expert for Facilities and Fleet Management. Holding multiple industry certifications, he specializes in developing maintenance schedules, managing contractor services, and optimizing operational readiness for vehicle fleets and physical infrastructure.






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