Meetingbird for Gmail - View your calendar and schedule meetings right from Gmail
Clara - Clara is a virtual employee that schedules your meetings, getting you to the work that matters, faster.
Mixmax Calendar - The fastest way to schedule meetings with anyone, anywhere
Mia - Virtual assistant for meetings
Zynq - Schedule meetings from an email with 1 click!
x.ai - x.ai is a tool to schedule meetings for you and your team.