Stormpath!

Passport is a complete identity API that adds authentication, authorization, single sign-on, security and user management to applications.

LoginRadius’ Customer Identity and Access Management (cIAM) platform helps companies deliver a connected customer experience by streamlining the registration and login processes for their web,mobile, and other digital properties. Organizations can increase registrations, improve customer experience, consolidate customer data, and leverage customer profiles to increase revenue through targeted and personalized marketing campaigns.

You can connect any application (written in any language or on any stack) to Auth0 and define its Connection, the method used to authenticate the users of that application:

Provide secure identity management and single sign-on to any application, whether in the cloud, on-premises or on a mobile device for your employees, partners and customers with Okta.

Simple and efficient cloud-based Single Sign-On (SSO) for employees by ‘bridging’ between the Identity Provider used by your company (for example, Active Directory) and the various 3rd party SaaS providers like Salesforce, Office 365 or Zendesk that your employees are using.

Janrain provides hosted user management solutions for social login and sharing, single sign-on and social profile storage.

Gigya is one of the leading social choice for websites, integrating online businesses with the top social networks such as Facebook, Twitter and LinkedIn and consolidating the most powerful social features in a single solution.

OmniAuth is a flexible authentication system utilizing Rack middleware.

HybridAuth A PHP Library for authentication through Facebook, Twitter, Google, Yahoo, MySpace, LinkedIn, AOL, Vimeo, FourSquare, OpenID and other Identity providers

Bitium is a provider of cloud-based identity and access management solutions, including single sign-on, password management, and analytics for small, medium and enterprise businesses. Founded in 2012, the company aims to give growing companies the ability to manage access to all of their web-based applications -- including Google Apps and Office 365, as well as social networks and CRM, collaboration and marketing tools -- in one place without hindering employee adoption of these applications. Organizations such as GroupM, Fullscreen, Movember and Demand Media use Bitium for an easy-to-use solution that delivers increased flexibility and security. To learn more about Bitium, please visit www.bitium.com . »

Imprivata (NYSE:IMPR) is a leading provider of authentication and access management solutions for the healthcare industry. Imprivata’s single sign-on, authentication management and secure communications solutions enable fast, secure and more efficient access to healthcare information technology systems to address multiple security challenges and improve provider productivity for better focus on patient care.

OneAll is a technology company offering a set of web-delivered tools and a Unified Social Network API to simplify the integration of 20+ social networks such as Facebook, Twitter, Google, Yahoo! and LinkedIn into business and personal websites.