
Analyst Chat #303: B2B Identity & Access Management - A New Market Unpacked
Business relationships are complex and traditional IAM wasn't built for them. In this episode, Matthias Reinwarth sits down with Principal analyst John Tolbert, author of KuppingerCole Analysts' first-ever B2B IAM Leadership Compass, to explore why Business-to-Business Identity and Access Management is emerging as its own distinct market and what it takes to get it right. Key Topics:✅ Why B2B IAM sits between workforce IAM and CIAM — and why neither alone is sufficient✅ Delegated administration: handing identity governance to partner and supplier organizations✅ Federation, lifecycle management, and the risks of trusting external HR processes✅ "Know Your Business" — vetting organizations, sanctions screening, and org-level trust✅ Fine-grained authorization: why RBAC falls short and ABAC/RBAC are taking over✅ Agentic AI in B2B IAM: agents acting on behalf of external organizations Supply chains with thousands of partner organizations, freelancers with hour-long access windows, and AI agents acting on behalf of external companies B2B IAM has to handle all of it. KuppingerCole Analysts' first B2B IAM Leadership Compass is out now read it alongside this episode to get the full picture of an emerging market you can't afford to ignore.















