TeamViewer - TeamViewer lets you establish a connection to any PC or server within just a few seconds.
Dameware Remote Everywhere - SolarWinds Dameware Remote Everywhere (DRE) is designed as an affordable and powerful cloud-based remote support tool. It doesn't just connect you to machines, it helps you solve your end users problems fast.
mRemoteNG - mRemoteNG is a fork of mRemote, an open source, tabbed, multi-protocol, remote connections manager.
TSplus Remote Desktop Software - TSplus provides fast and feature-rich Remote Desktop Software for Linux, Windows, and Mac.
join.me - Instant screen sharing. Instant Aha!
NetSupport Manager - NetSupport Manager Remote Control and Remote Access software - Remotely Support any PC, Mac, ChromeOS or Linux system across LAN, WAN or internet from your Windows PC, Apple Mac, iOS or Android device