Tammie R. Shelton

Tammie R. Shelton serves as a Contract Specialist at the National Geospatial-Intelligence Agency (NGA), where she plays a pivotal role in executing complex acquisitions that support the agency’s mission to deliver authoritative geospatial intelligence for national security and defense operations. She manages the full lifecycle of contracts for advanced geospatial analytics, mapping systems, and digital terrain modeling technologies, ensuring compliance with federal acquisition regulations and alignment with NGA’s strategic priorities in automation and precision intelligence. Her portfolio primarily encompasses technical services and software solutions critical to imagery analysis and geospatial data dissemination. Shelton maintains consistent working relationships with leading providers in the geospatial and defense technology sectors, including ESRI, L3Harris Technologies, Garmin International, Voyager Search, and Dynamic Gravity Systems LLC. These partnerships reflect a preference for established industry leaders with proven capabilities in geospatial software development, satellite imagery processing, and terrain modeling systems. Her contracting approach emphasizes performance-based outcomes, technical rigor, and long-term vendor reliability to support mission-critical operations. Her procurement patterns show a strong emphasis on open competition, with 93.9% of awards issued without set-aside designation, indicating a focus on sourcing the most capable solutions regardless of business size. Small business participation is present but limited, with equal distribution between 8(a) competed and total small business set-asides at 3.0% each, suggesting targeted, rather than broad, socioeconomic contracting efforts. Shelton’s primary NAICS focus areas are 511210 (Software Publishers) and 541370 (Surveying and Mapping Services), reflecting her specialization in procuring geospatial software, automated mapping platforms, and geospatial data analytics services. She also regularly engages contractors in 541519 (Other Computer Related Services) to support integration, system development, and data processing infrastructure essential to NGA’s digital mission environment.