Appian Corporation, a public enterprise software company. Based on authoritative public sources: Appian Corporation is a McLean, Virginia–based enterprise software firm founded in 1999 that develops a cloud-based low-code automation platform for building and managing business applications, enabling organizations to orchestrate processes, unify data and deploy workflows with integrated AI and automation capabilities across industries including finance, government and insurance, and it is publicly traded on Nasdaq under the ticker APPN.