Frontegg review: Customer identity and access management for B2B SaaS, with SSO, SCIM and multi-tenancy

What Frontegg does

Frontegg is a customer identity and access management (CIAM) product aimed at B2B SaaS companies. Instead of building login and user management in-house, a team adds Frontegg's hosted login or embeddable login box and connects it to the application through SDKs, APIs and webhooks. The vendor lists social logins, passwordless magic links, SSO and multi-factor authentication, including an adaptive mode that asks for MFA only when a sign-in looks risky.

Beyond login, the platform covers multi-tenancy with layered tenant structures, SCIM, an admin portal where your customers manage their own users, roles and permissions, and Multi-Apps for handling several products from one hub. Authorization goes past plain roles, with access rules based on subscription, feature flags or object-level attributes.

The Enterprise plan has custom pricing through the sales team and adds multiple environments, advanced fraud protection, a 99.99% uptime SLA and premium support, with add-ons available.

• Login, SSO and SCIM for B2B SaaS
• Layered multi-tenancy per organization
• Adaptive MFA
• Passwordless magic links
• Social logins
• Embeddable login box
• Subscription and feature-flag based access control
• Customer-facing admin portal
• Multi-Apps hub
• Open-source SDKs and APIs

Our take

Frontegg looks like a fit for B2B SaaS teams that want enterprise login features, such as SSO, SCIM and per-customer tenant settings, without building them themselves. The free Pay as you go plan lets a team start without a purchase, which suits early products. The trade-offs are on the pricing side: costs past the free allowance are not published, Enterprise is quote-only, and features like multiple environments and the uptime SLA sit in the Enterprise tier. It is a developer-oriented product, so a team should expect to integrate SDKs or APIs rather than switch it on without code.