Astadia
IT Services and IT ConsultingMissouri, United States51-200 Employees
Astadia is a mid-sized IT services and IT consulting firm that focuses on mainframe migrations and modernization, handling millions of lines of code each year for clients around the world. Based in the St. Louis area of Missouri, the company serves organizations seeking to modernize legacy mainframe environments and shift toward cloud-enabled solutions. Its service approach emphasizes automation and cloud migration expertise as core components of its offerings. Operating within the IT services and IT consulting industry, Astadia supports businesses that need to transform mainframe applications to more capable architectures. Its work targets a global client base, grounded in established delivery methodologies. In March 2025, the firm was recognized with the FinTech Breakthrough Award for Best Banking Infrastructure Platform, reflecting its role in modernizing banking infrastructure.