StackArmor is a cloud security solutions provider specializing in compliance and cybersecurity services for organizations using Amazon Web Services (AWS). They offer a range of services including FedRAMP, FISMA, and CMMC compliance readiness, speedier ATO (Authority to Operate) processes, and managed security services. StackArmor is known for its "ATO on AWS" accelerator, which helps clients achieve faster cloud security approval. The company aims to simplify complex security frameworks and ensure robust cloud protection for government agencies, enterprises, and regulated industries.