PlainID

PlainID is an enterprise authorization platform organised around policy based access control, structuring itself into three stages: discovering existing access control policies, managing and standardising authorization, and enforcing decisions across the enterprise. It targets identity security for organisations with a large estate of applications rather than individual development teams.

Starting with discovery is what distinguishes the enterprise approach from the developer tooling in this category. A large organisation does not begin from nothing, it begins with access rules already scattered across dozens of applications, each implemented differently by whoever built it. Knowing what those rules currently are is a prerequisite to standardising them, and it is the step most authorization projects skip before discovering they cannot proceed without it.

Policy based access control is the model, expressing rules as policies evaluated against identity and context rather than as static role assignments. That handles the reality that entitlement often depends on circumstances, such as data classification or where a request originates, rather than on job title alone.

Positioning authorization as part of identity security reflects how enterprises buy. Authentication is largely solved in most organisations while authorization remains fragmented, so extending an existing identity programme into authorization is the natural path.