Full AI Response
The most widely adopted single sign‑on (SSO) platforms in 2026 are **Okta**, **Microsoft Entra ID (formerly Azure AD)**, **Auth0 (by Okta)**, **Ping Identity**, **OneLogin**, **JumpCloud**, and a few fast‑growing developer‑focused or niche players such as **WorkOS**, **Frontegg**, **miniOrange**, and **AuthX**.[1][2][3][4][6][7][8]
Below is a concise view of the major players and how they’re typically positioned in 2026.
### Core “big 4–5” SSO platforms
These names appear consistently across multiple 2026 rankings and industry guides.[1][2][3][4][6][7][8]
- **Okta**
- Focus: Workforce SSO and Customer Identity (CIAM) for cloud‑first organizations.[1][3][4][6][7][8]
- Why popular: Large integration catalog, mature SAML/OIDC support, strong enterprise presence and ecosystem.[1][3][4][6]
- **Microsoft Entra ID (Azure AD)**
- Focus: Organizations using Microsoft 365 / Azure; workforce SSO to Microsoft and thousands of SaaS apps.[1][2][3][6][7][8]
- Why popular: Bundled into Microsoft ecosystems, often the default SSO choice for enterprises already on Microsoft.[1][3][6][7]
- **Auth0 (by Okta)**
- Focus: Highly customizable developer‑centric CIAM and enterprise SSO.[1][2][3][4][5][8]
- Why popular: Deep feature set, strong SDKs, social logins, and extensibility; widely used by B2C/B2B apps.[1][3][4][8]
- **Ping Identity (including ForgeRock)**
- Focus: Large and regulated enterprises needing flexible, hybrid or on‑prem deployments.[2][4][6][7][8]
- Why popular: Strong federation, adaptive auth, and orchestration for banks, healthcare, and government.[4][6]
- **OneLogin**
- Focus: Cloud SSO and access management, often for mid‑market and enterprises.[1][2][4][7]
- Why popular: Straightforward UI, policy‑driven security, good app catalog.[1][4][7]
### Other widely used / frequently listed platforms
- **JumpCloud**
- Focus: Cloud directory + SSO + device management for SMEs.[1][6][7]
- Why popular: All‑in‑one IT platform aimed at small and mid‑sized businesses.[1][6][7]
- **miniOrange**
- Focus: SSO and IAM with many plugins/connectors (e.g., for CMSs and SaaS apps).[7]
- Why popular: Broad protocol and app support; often used where quick connectors are needed.[7]
- **WorkOS**
- Focus: Enterprise SSO integrations (SAML, SCIM) for B2B SaaS products.[3]
- Why popular: Designed to help SaaS vendors close enterprise deals quickly with pre‑built SSO/SCIM integrations.[3]
- **Frontegg**
- Focus: Customer‑facing SSO and user management for B2B SaaS.[4]
- Why popular: Drop‑in “customer portal” approach with built‑in SSO flows for SaaS products.[4]
- **AuthX**
- Focus: Enterprise SSO and IAM.[2]
- Why popular: Featured as a leading SSO solution for secure, scalable access in 2025–2026 lists.[2]
- **Keycloak** (open source)
- Focus: Self‑hosted, open‑source IAM and SSO.[3][4][5]
- Why popular: No license cost, flexible, widely used when organizations want full control in their own infrastructure.[3][4][5]
- **Amazon Cognito**
- Focus: SSO and user management for apps built on AWS.[1]
- Why popular: Natural choice for teams heavily invested in AWS, supports OIDC and social logins.[1]
- **IBM Security Verify, Oracle Identity Cloud Service, CyberArk, Delinea, One Identity, Saviynt**
- Focus: Broader identity security/IGA platforms that include SSO as part of a larger suite, especially in large enterprises and regulated sectors.[1][6]
### How to interpret “most popular”
Because there is no single public market‑share ranking just for SSO, 2026 “most popular” is usually inferred from:
- Recurrence across independent 2026 provider lists and guides (Authgear, AuthX, miniOrange, Infisign, etc.).[1][2][7][8]
- Inclusion in enterprise‑focused identity security rankings (Delinea, others).[6]
- Focused SSO comparisons for B2B SaaS and startups (WorkOS, Frontegg, SSOJet, etc.).[3][4][5]
Across these, **Okta**, **Microsoft Entra ID**, **Auth0**, **Ping Identity**, **OneLogin**, and **JumpCloud** consistently appear, with **WorkOS**, **Frontegg**, **miniOrange**, **AuthX**, **Keycloak**, and **Cognito** prominent in specific segments or ecosystems.[1][2][3][4][5][6][7][8]
Brands mentioned in this response
Sign.net

Okta
Mentioned 5×

Microsoft Entra ID
Mentioned 3×

Azure AD
Mentioned 2×
Auth0
Mentioned 3×

Ping Identity
Mentioned 3×

OneLogin
Mentioned 3×

JumpCloud
Mentioned 3×
Fast.io
WorkOS(this page)
Mentioned 4×
Frontegg
Mentioned 4×

AuthX
Mentioned 4×
Focus
Mentioned 13×
Workforce
Mentioned 2×
Customer.io
Mentioned 3×
Presence
Presence
Microsoft 365

Ecosystems
Mentioned 2×
Adaptive
Platform.io
Close
User.com
Mentioned 2×
Portal

Keycloak
Mentioned 2×
Amazon Cognito

Cognito
Mentioned 2×

One Identity

Authgear

Infisign