Ring4 - Manage business phone line as easily as you manage emails, in the cloud. Ring4 provide you with a business line and video conferencing solution.
Invoca - Call tracking & analytics software
SpotMenu - Spotify and iTunes in your macOS menu bar
CallTrackingMetrics - Know who is calling and how they found you. Maximize the return on your advertising.
OpenPhone - Simplest way to own a business phone number
Marchex - Marchex is a mobile advertising analytics company that connects online behavior to real-world, offline actions.