MailPace - A Transactional Email Provider from the creators of idbloc.co - for apps, websites and anything else
Swink - Short links with stats and automatically branded QR codes
Postmark - Postmark is the easiest and most reliable way to be sure your important transactional emails get to the inbox. Simply & reliably parse recieved email to JSON for your webapp.
Maizzle - Quickly build HTML emails with utility-first CSS.
Paddle - The Paddle Revenue Delivery Platform for B2B SaaS companies powers growth across acquisition, renewals and expansion.
Pry Financials - Finance for Founders