Short.io - Short.io makes short links (vanity urls) on your own domain. Free signup, analytics and API. Chrome, slack, zapier and segment integrations.
Rebrandly - Rebrandly is the easiest way to create, share and manage branded links.
Bitly - Get the most out of your social and online marketing efforts. Own, understand and activate your best audience through the power of the link with Bitly Enterprise.
TinyURL - Are you sick of posting URLs in emails only to have it break when sent causing the recipient to...
Shorten.REST - A URL shortener API you can depend on
Cutt.ly - Free custom URL Shortener and branded URLs with advanced links tracking and Link Management Platform & API.