ProtonMail - Secure email with absolutely no compromises. Get your free encrypted email account today.
Octopush - Octopush is a company providing technology-based communication solutions, including SMS, Web solutions, and Email APIs.
Mailvelope - Mailvelope open source project. OpenPGP in your browser.
Clearstream - Clearstream is a SMS marketing and online texting software.
Tutanota - Get your encrypted mailbox for free.
Swift SMS Gateway - SMS Gateway is your bridge between the Internet and the world of cell phone SMS text messaging.