Top 6 B2B SaaS Identity Platforms

Selling a SaaS product to enterprises runs into the same wall every time: the security questionnaire. Larger customers require single sign-on with their own identity provider, automated user provisioning through their directory, per-tenant administration, and audit logs, and without them, deals stall in procurement. B2B SaaS identity platforms exist to clear that wall, adding the enterprise-readiness features that let a product move upmarket without building SAML, SCIM, and multi-tenancy from scratch.

This is a different problem from consumer CIAM. B2B identity is organized around the tenant: each customer is an organization with its own SSO connection, directory sync, roles, and settings. This guide evaluates the six identity platforms built for that model in 2026. For the broader customer-identity field, see our top CIAM platforms for B2B SaaS and the best identity tools for B2B SaaS ranking.

Evaluation Criteria

We assessed each platform against the requirements that matter for B2B SaaS:

• Enterprise SSO, SAML 2.0 and OIDC connections to customer identity providers
• SCIM provisioning, automated directory sync for user and group lifecycle
• Multi-tenancy, organizations with per-tenant configuration and isolation
• Self-service admin, a portal so customer IT can configure SSO without your support
• Authorization, roles, permissions, and per-organization RBAC
• Developer experience, SDKs, APIs, and time to integrate
• Pricing model, per-connection versus per-MAU and how it scales with your customer mix

The Top 6 B2B SaaS Identity Platforms

1. WorkOS

Best For: Teams that want to add enterprise SSO, SCIM, and directory sync as a clean layer over existing auth.

Overview

WorkOS is purpose-built for the enterprise features that close B2B deals: SSO, Directory Sync, and audit logs, exposed through a developer-friendly API and a self-service Admin Portal for customer IT. Its SSO module handles SAML metadata exchange, certificate management, and attribute mapping, and Directory Sync integrates with Okta, Microsoft Entra, OneLogin, Google Workspace, and generic SCIM providers to provision and deprovision users in real time. WorkOS AuthKit adds a hosted authentication experience, and its Fine-Grained Authorization implements a Google Zanzibar-style permission model.

Key Features

• SAML and OIDC enterprise SSO with a guided customer setup wizard
• Directory Sync (SCIM) with real-time provisioning webhooks
• Admin Portal for customer self-service configuration
• AuthKit hosted auth and Fine-Grained Authorization
• SDKs across major languages and frameworks

Pricing A generous free tier for AuthKit, with enterprise SSO and Directory Sync priced per connection (commonly around $125/month per connection). Costs scale with the number of enterprise customers rather than total users.

Pros

• The most streamlined way to add enterprise SSO and SCIM
• Per-connection pricing is predictable for B2B
• Strong developer experience and admin self-service

Cons

• Per-connection pricing adds up with many small enterprise tenants
• Less of a full consumer CIAM than a B2B enterprise-readiness layer
• Fine-grained authorization is newer than dedicated authorization tools

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2. SSOJet

Best For: SaaS teams that need enterprise SSO and SCIM live quickly, with transparent B2B pricing.

Overview

SSOJet focuses on the B2B enterprise-readiness layer: SAML and OIDC single sign-on and SCIM directory provisioning that a SaaS product can add without building the protocol handling itself. It targets fast integration and a self-service experience for customer administrators, and it is positioned as a cost-conscious alternative for teams whose main need is to check the enterprise SSO and provisioning boxes on a security review. As a newer vendor, its ecosystem is smaller than the incumbents, so validate the specific connectors and edge cases you need.

Key Features

• SAML and OIDC enterprise SSO connections
• SCIM provisioning for user and group lifecycle
• Self-service setup for customer IT administrators
• Developer-focused APIs and SDKs
• Multi-tenant organization model

Pricing Transparent B2B pricing oriented to per-connection or tiered plans, positioned as cost-conscious for teams adding enterprise SSO. Confirm current pricing and limits directly.

Pros

• Fast path to enterprise SSO and SCIM
• Transparent, B2B-oriented pricing
• Focused scope keeps integration simple

Cons

• Younger vendor with a smaller ecosystem and reference base
• Narrower than a full identity platform
• Validate connector coverage for your target directories

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3. Auth0 (by Okta)

Best For: Teams wanting a mature, full identity platform with a first-class B2B organizations model.

Overview

Auth0, now part of Okta, provides a broad developer identity platform, and its Organizations feature makes it a strong B2B option: each customer is an organization with its own connections, membership, roles, and branding. Auth0 supports enterprise SSO (SAML, OIDC, and specific IdP connectors), and its Actions extensibility lets teams customize the authentication pipeline in depth. It is the most feature-complete option here, with the trade-off that per-MAU pricing can climb as a B2B user base grows.

Key Features

• Organizations for B2B multi-tenancy with per-org connections and roles
• Enterprise SSO via SAML, OIDC, and named IdP connectors
• Actions for deep, code-level customization of auth flows
• Broad SDK coverage and a large integration ecosystem
• Universal Login and extensive authentication methods

Pricing Tiered plans with a B2B (Enterprise) offering; pricing is per monthly active user and rises with volume and enterprise features. Model expected MAUs before committing.

Pros

• Most complete and battle-tested platform here
• Strong B2B organizations model and extensibility
• Large ecosystem and documentation

Cons

• Per-MAU pricing can escalate as you scale
• More platform to learn and operate than a focused SSO layer
• Some enterprise capabilities require higher tiers

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4. Frontegg

Best For: SaaS teams wanting a fuller multi-tenant user-management platform with self-service admin built in.

Overview

Frontegg provides an end-to-end B2B user-management platform built around multi-tenancy: organizations, self-service admin portals your customers use directly, enterprise SSO, SCIM, roles and permissions, and audit logs. Rather than only brokering SSO, it aims to own the surrounding account experience, sign-up, tenant management, and entitlements, so product teams ship less identity UI themselves. That breadth suits teams that want more than an SSO layer, at the cost of adopting a more opinionated platform.

Key Features

• Multi-tenant organizations with customer-facing admin portals
• Enterprise SSO (SAML, OIDC) and SCIM provisioning
• Built-in roles, permissions, and entitlements
• Self-service sign-up and tenant management UI
• Audit logs and security controls

Pricing Tiered plans that scale with tenants and monthly active users, with enterprise features on higher tiers. Confirm current pricing against your tenant and user counts.

Pros

• Broad, ready-made B2B account and admin experience
• Reduces the identity UI a product team must build
• Strong multi-tenant and entitlements model

Cons

• More opinionated than a lightweight SSO layer
• Pricing scales with tenants and users
• Adopting the full platform is a larger commitment

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5. Stytch

Best For: API-first teams that want B2B auth with SSO, SCIM, and strong session control.

Overview

Stytch offers an API-first identity platform whose B2B product provides multi-tenant authentication for SaaS: each organization gets isolated configuration, SAML SSO, SCIM directory sync, custom session policies, and RBAC. Stytch pairs this with passwordless methods and device-fingerprinting fraud prevention, which is a differentiator for teams that also care about bot and account-takeover defense. It suits engineering teams that prefer composing identity from clean APIs over adopting a hosted platform.

Key Features

• B2B product with per-organization isolation and settings
• SAML SSO and SCIM directory sync
• RBAC with customizable roles and permissions
• Passwordless methods and device-fingerprinting fraud prevention
• API-first design with broad SDK coverage

Pricing Free tier for early B2B usage, with growth and enterprise tiers priced on active organizations and users. Model your tenant mix against the tiers.

Pros

• Clean API-first architecture with strong session control
• Built-in fraud prevention is uncommon in this group
• Solid B2B multi-tenancy

Cons

• API-first means more assembly than a hosted platform
• Fraud and advanced features concentrate value in higher tiers
• Less turnkey admin UI than Frontegg

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6. Descope

Best For: Teams that want to build B2B auth and SSO with a visual, no-code flow builder.

Overview

Descope is a drag-and-drop authentication platform whose flow builder lets teams design sign-up, login, and SSO journeys without hand-coding each step. Its B2B support covers multi-tenant organizations, SAML and OIDC SSO, SCIM provisioning, and RBAC, and passwordless methods including passkeys are first-class. The visual approach is attractive for teams that want to iterate on auth flows quickly and offload maintenance of the flow logic, with the trade-off of learning the flow model.

Key Features

• Visual, no-code flow builder for auth and SSO journeys
• Multi-tenant organizations with SAML and OIDC SSO
• SCIM provisioning and RBAC
• Passwordless and passkey methods built in
• SDKs and embeddable components

Pricing Free tier with paid plans scaling on monthly active users and tenants; enterprise features on higher tiers. Confirm current limits.

Pros

• Visual flow builder speeds iteration on auth journeys
• Strong passwordless and passkey support
• Covers the core B2B SSO and provisioning needs

Cons

• The flow model has a learning curve
• Younger platform than Auth0
• Per-MAU pricing to watch as you grow

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Comparison Matrix

Platform	Enterprise SSO	SCIM Sync	Multi-Tenancy	Admin Portal	Pricing Model
WorkOS	Yes (SAML, OIDC)	Yes (core)	Organizations	Yes	Per connection
SSOJet	Yes (SAML, OIDC)	Yes	Organizations	Yes	Per connection / tiered
Auth0	Yes (SAML, OIDC)	Yes	Organizations	Partial	Per MAU
Frontegg	Yes (SAML, OIDC)	Yes	Organizations	Yes (self-service)	Tenants + MAU
Stytch	Yes (SAML)	Yes	B2B product	Partial	Orgs + MAU
Descope	Yes (SAML, OIDC)	Yes	Organizations	Partial	Per MAU

How to Choose

To add enterprise SSO and SCIM fast as a layer, WorkOS and SSOJet are the most direct: they broker SAML/OIDC and SCIM without asking you to adopt a whole platform, and their per-connection pricing is predictable for B2B.

For a fuller multi-tenant identity platform, Auth0 Organizations gives you the most mature and extensible option, and Frontegg gives you the most ready-made customer admin and account experience.

For API-first or flow-driven teams, Stytch offers clean APIs with fraud prevention, and Descope offers a visual flow builder, both covering the core B2B SSO and provisioning needs.

The deciding factors are usually pricing shape and how much you want to own: per-connection pricing (WorkOS, SSOJet) rewards fewer, larger enterprise tenants, while per-MAU pricing (Auth0, Descope) and tenant-based pricing (Frontegg) track different growth curves. Compare pairs in our comparisons, and for consumer-facing needs see the top CIAM platforms for B2B SaaS.

Conclusion

Enterprise readiness is now table stakes for B2B SaaS, and these six platforms each remove the need to build SSO, SCIM, and multi-tenancy from scratch. WorkOS and SSOJet are the fastest way to add the enterprise layer, Auth0 and Frontegg provide fuller platforms, and Stytch and Descope suit API-first and flow-driven teams. Start from your customer mix and pricing model, because migrating identity later is painful, and choose the platform whose tenant and pricing model matches how your business will grow.