Google Authenticator - Google Authenticator is a multifactor app for mobile devices.
MikMak - Infomercials that aren't boring and are on your phone!
Authy - Best rated Two-Factor Authentication smartphone app for consumers, simplest 2fa Rest API for developers and a strong authentication platform for the enterprise.
Clerk - Clerk.io, the artificial intelligence for e-commerce that knows your customers interests.
UNLOQ - UNLOQ offers Multi-Factor Authentication, Transaction authorization, and Data Encryption solutions for Businesses and Organisations.
Netsuite SuiteCommerce - NetSuite SuiteCommerce enables B2C and B2B businesses to manage customer interactions through a cloud eCommerce platform.