GREYSTONES CONSULTING GROUP, LLC

Greystones Consulting Group, LLC specializes in engineering services and custom software development for complex defense and federal systems. Their core capabilities include systems engineering and technical assistance, enterprise platform sustainment, and mission-critical IT support across DoD environments. The firm delivers end-to-end solutions in software sustainment, programmatic financial analysis, and technology integration, with deep expertise in DoD acquisition frameworks and lifecycle management. They consistently support mission-critical initiatives involving cybersecurity posture assessments, STEM program infrastructure, and foreign military sales systems, demonstrating proficiency in agile development, technical documentation, and cross-functional coordination within highly regulated environments. The contractor maintains a strong, sustained relationship with the Department of Defense, delivering engineering and programming services across multiple commands and programs, including SEAPORT-NXG, CDAO enterprise platforms, and FMS Korea initiatives. Their work consistently supports defense modernization, systems assurance, and operational readiness through tailored technical assistance and sustainment efforts. While they have one contract with the General Services Administration under the Federal Supply Schedule, their primary focus remains embedded within DoD mission support ecosystems. Greystones’ industry focus centers on engineering services (NAICS 541330), with complementary expertise in custom computer programming (541511) and research and development (541715). They position themselves as a nimble, mission-aligned provider for defense technology modernization, specializing in legacy system integration, software sustainment, and technical advisory services that bridge operational needs with evolving IT architectures. As a Women-Owned Small Business and Woman-Owned Business certified firm headquartered in Washington, D.C., Greystones leverages its small business status to deliver responsive, high-touch technical services within federal procurement channels. Their D.C.-based presence enhances accessibility to defense and acquisition leadership, reinforcing their role as a trusted technical partner in the national security ecosystem.