Amazon Cognito

Alibaba Cloud's identity and access management service with users, groups, roles, fine-grained JSON policies, SAML 2.0 federation to enterprise IdPs, and Security Token Service for temporary credentials

Cloud identity and access management (formerly Azure AD) with SSO, MFA, conditional access, B2B and B2C guest accounts, and privileged identity management

Decentralised identity service that issues and verifies W3C-standard Verifiable Credentials anchored to the ION DID network, enabling passwordless onboarding, employee verification, and credential sharing between organisations without a central identity provider

Fine-grained identity and access management with predefined and custom roles, service accounts, workload identity federation, and audit logging

Centralised identity management for Huawei Cloud with users, user groups, role-based and fine-grained policies, federated identity via SAML/OIDC, MFA, and temporary credentials through Security Token Service

Identity, authentication, and service-catalogue service — issues tokens, manages users and projects, federates with external identity providers (LDAP, SAML, OIDC), and exposes the service catalogue every other OpenStack project consumes for endpoint discovery

Enterprise identity-as-a-service covering workforce and customer identity with federation (SAML, OIDC), social sign-in, MFA, risk-based adaptive authentication, and delegated administration — the rebranded OCI IAM Identity Cloud Service

Tencent Cloud's identity and access management service with sub-accounts, user groups, roles, fine-grained JSON policies, SAML and OIDC federation, MFA, temporary credentials via Security Token Service, and cross-account role assumption