Introduction In today’s digitally connected world, businesses are no longer confined to their own silos, and cross-collaboration with other organizations is increasingly commonplace. As a result, the need for seamless and secure authentication across different platforms, applications, and organizations has become paramount. Enter B2B Single Sign-On (SSO) and the critical role of identity brokerage in ensuring robust, scalable, and streamlined access management. This article aims to shed light on the significance of identity brokerage in the realm of B2B SSO and why businesses must consider implementing this technology to enhance their security posture and improve user experiences.