AdaCore is a leading software company founded in 1994, specializing in development tools for Ada, SPARK, C, C++, and Rust, focusing on high-integrity, safety, and security-critical systems in industries like aerospace, defense, and rail. They maintain open-source Ada compiler frontends (GNAT) and offer commercial products like GNAT Pro, providing compilers, static analysis, and testing tools for mission-critical applications needing extreme reliability and certification. AdaCore supports modernizing the Ada language, expanding into Rust, and offering cloud-based development platforms for building trustworthy software.