One Identity

Leading enterprise IAM vendor with growing relevance in identity-based AdTech infrastructure and data governance

One Identity is a cybersecurity and identity governance company that provides a comprehensive suite of identity and access management (IAM) solutions, including privileged access management (PAM), identity governance and administration (IGA), and active roles directory management. Spun out from Dell Technologies in 2012 and later acquired by Quest Software's parent entity, One Identity operates as a standalone business under Francisco Partners' portfolio. The company serves thousands of organizations globally, helping them secure user identities, manage access rights, and meet compliance requirements. In the context of AdTech, One Identity's relevance stems from its acquisition of certain identity-related technology assets and companies that intersect with digital advertising infrastructure — particularly around identity resolution, data governance, and audience management. Its lineage in the ATDb reflects acquisitions of companies whose identity data capabilities have applications in the advertising technology ecosystem, including first-party data management and consent-based identity frameworks. One Identity holds a strong position in the enterprise IAM market, competing with vendors like SailPoint, CyberArk, and Okta. With a global customer base spanning financial services, healthcare, government, and retail, the company's core value lies in unifying identity security across complex hybrid IT environments. Its AdTech adjacency is secondary to its primary cybersecurity mission but increasingly relevant as identity becomes central to cookieless advertising strategies.