SuperSend.io - Automate Cold Outreach Across Email, Linkedin and Twitter.
Notix.co - NOTIX is an audience re-engagement service based on web and in-app push notifications that work for both desktop and mobile devices.
nnn - Fast and resource-sensitive file manager for the terminal
Airship - Mobile marketing solutions across all major mobile platforms.
Ortto - Journeys made simple. Your customer data, messaging and analytics working together.
OneSignal - Customer engagement platform used by over 1 million developers and marketers; the fastest and most reliable way to send mobile and web push notifications, in-app messages, emails, and SMS.