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08/06/2026 4:29 pm
TL;DR: SaaS teams choosing an SSO provider must balance integration speed, IdP coverage, pricing model, scalability, and adjacent controls like SCIM and audit logs, according to WorkOS’s 2025 guide. The real decision is not whether to add SSO, but whether your identity programme can absorb enterprise customer requirements without creating maintenance debt or hidden governance gaps.
NHIMG editorial — based on content published by WorkOS: The best 5 SSO providers to power your SaaS app in 2025
By the numbers:
- 25x to 50x., to one in two identities in modern enterprises are non-human, outnumbering human identities by 25x to 50x.
- Only 5.7% of organisations have full visibility into their service accounts.
- 96% of organisations store secrets outside of secrets managers in vulnerable locations including code, config files, and CI/CD tools.
Questions worth separating out
Q: How should SaaS teams choose an SSO provider for enterprise customers?
A: They should choose based on the full identity workflow, not just login support.
Q: Why do SSO integrations become harder as a SaaS business scales?
A: Because each enterprise customer can bring a different IdP, different configuration expectations, and different governance requirements.
Q: What do SaaS teams get wrong about building SSO in-house?
A: They often underestimate the maintenance burden.
Practitioner guidance
- Separate authentication from lifecycle governance Treat SSO, SCIM, audit logging, and MFA as distinct control requirements during selection.
- Model pricing against enterprise growth patterns Test monthly active user and connected-organisation pricing against realistic onboarding scenarios, including large customer rollouts and seasonal usage spikes.
- Standardise IdP onboarding patterns early Document a repeatable federation runbook for common customer IdPs such as Okta, Microsoft Entra ID, Ping, and Google Workspace so each new enterprise account does not create a fresh integration path.
What's in the full article
WorkOS's full guide covers the operational detail this post intentionally leaves for the source:
- Provider-by-provider feature tables that compare SAML, OIDC, SCIM, and extra login methods.
- Pricing notes and positioning details for teams benchmarking enterprise SSO options.
- Integration considerations for specific IdPs and customer onboarding scenarios.
- Pros and cons at the implementation level for each listed provider.
👉 Read WorkOS's guide to the best SSO providers for SaaS apps in 2025 →
SSO for SaaS apps in 2025: what should IAM teams evaluate first?
Explore further
08/06/2026 6:09 pm
SSO provider selection is now an identity governance decision, not a feature checklist. The article’s real message is that SaaS authentication has moved into the enterprise control plane, where SSO, SCIM, audit logs, and MFA are expected to work together. That is a lifecycle and governance problem as much as a login problem. Teams that treat SSO as a narrow integration risk shipping a fragmented access model that enterprise customers will eventually force them to revisit.
A few things that frame the scale:
- Only 5.7% of organisations have full visibility into their service accounts, according to the Ultimate Guide to NHIs.
- 96% of organisations store secrets outside of secrets managers in vulnerable locations including code, config files, and CI/CD tools, according to the Ultimate Guide to NHIs.
A question worth separating out:
Q: How do security teams know whether SSO is actually governable?
A: They look for adjacent controls such as SCIM, audit logs, role-based access, and support for customer IdPs that match their target market. If those controls are missing, SSO may be functional but still hard to govern, review, or audit at enterprise scale.
👉 Read our full editorial: SSO providers for SaaS apps expose the IAM trade-offs teams face
