# WorkOS vs SSOJet vs Auth0: Which Fits Your B2B SaaS in 2026 Source: https://startwithidentity.com/articles/workos-vs-ssojet-vs-auth0-b2b-saas/ Last updated: 2026-08-06 License: content by Start with Identity. Cite the source URL. --- WorkOS, SSOJet, and Auth0 are the three names that come up together when a B2B SaaS team starts evaluating enterprise SSO, and for good reason: they cover the same buying decision from three different architectural angles. Two of the three pairwise comparisons already exist in depth, [WorkOS vs SSOJet](https://startwithidentity.com/compare/workos-vs-ssojet/) and [Auth0 vs SSOJet](https://startwithidentity.com/compare/auth0-vs-ssojet/) and [Auth0 vs WorkOS](https://startwithidentity.com/compare/auth0-vs-workos/), so this piece focuses on what those don't: the three-way trade-off and which one fits which company. ## The architectural split [WorkOS](https://startwithidentity.com/vendors/ciam/workos/) and [SSOJet](https://startwithidentity.com/vendors/ciam/ssojet/) are both overlays. Neither replaces your product's login, both add [SAML and OIDC](https://startwithidentity.com/standards/saml-2-0/) single sign-on plus [SCIM](https://startwithidentity.com/standards/scim-2-0/) provisioning as a layer your existing users never see, and both bill per enterprise SSO connection rather than per end user. [Auth0](https://startwithidentity.com/vendors/ciam/auth0/) is a full platform: it provides authentication itself, with per-monthly-active-user pricing, and enterprise SSO connections are an add-on within that structure rather than the whole product. That split determines almost everything else. If your product already authenticates users and the only gap is what enterprise procurement demands, an overlay is a smaller, faster, cheaper change. If you're building or replacing authentication anyway, evaluating a full platform that also happens to cover enterprise SSO is worth doing before you adopt two vendors instead of one. ## Where each one wins **WorkOS wins** on maturity: it has been shipping this since 2019, has the largest reference base of the three for the overlay use case, and its Admin Portal, where your customers self-configure their own SSO, is the most proven version of that specific piece. If you want the lowest-risk vendor and can absorb per-connection pricing from your first connection, WorkOS is the default choice. **SSOJet wins** on speed and price. Its per-connection rate is lower than WorkOS's starting tier, and it ships the same SAML, OIDC, and SCIM coverage without the reference base WorkOS has built up since 2019, a real trade for a 2024 entrant. For a team with one enterprise deal blocked on SSO and a tight runway, that trade is usually worth making. **Auth0 wins** when the real question isn't "which SSO overlay" but "which authentication platform," because it's the only one of the three that answers both. Teams that need B2C and B2B authentication in one vendor, or that are re-platforming core auth regardless of the SSO question, should put Auth0 on the shortlist first and only look at overlays if Auth0's per-MAU model doesn't fit. ## Pricing at scale WorkOS charges per SSO connection on a published, tiered ladder from $125 down to $50 as volume grows, plus separate AuthKit pricing for core auth if you use it. SSOJet publishes a flatter per-connection rate with custom Enterprise pricing above 200 connections. Auth0 bundles a handful of connections into its Essentials and Professional plans, then charges per additional connection up to a cap, after which it moves to custom Enterprise pricing. Because all three bill on different units and structures, model your own connection count and MAU volume in the [TCO calculator](https://startwithidentity.com/tools/tco-calculator/) rather than comparing list prices directly; see [Enterprise Authentication Pricing in 2026](https://startwithidentity.com/articles/enterprise-authentication-pricing-2026/) for the full breakdown across a wider vendor set. ## How to choose by stage - **Pre-seed or seed, first enterprise deal blocked on SSO:** SSOJet. Speed and cost matter more than reference base at this stage, and the connection count is low enough that the pricing gap is small in absolute dollars. - **Series A to growth, signing enterprise logos steadily:** WorkOS. The per-connection cost is worth paying for the larger connector library and reference base as you scale past a handful of enterprise customers. - **Re-platforming core authentication, or need B2C and B2B together:** Auth0. Evaluate it for the whole authentication problem, not just the SSO piece, since that's where it actually competes. ## Bottom line WorkOS and SSOJet are close substitutes solving the same narrow problem at different points on the maturity-versus-cost curve; Auth0 is a different category of purchase that happens to solve the same problem as a side effect. Decide which question you're actually answering, "how do we add SSO to what we have" or "what should our authentication platform be", before comparing feature lists, since that decision determines which two of the three you're really choosing between.