LeeveBot - Manage team leave with Slack.
CakeHR - CakeHR by Sage is a one-stop-shop for your HR management needs. Your HR - simplified!
Calamari - Calamari helps organizations, companies, and enterprises to manage their human resources in an easy and compliant way by delivering modern and easy-to-use time tracking and attendance management tools.
Absence - Employee vacation tracking system
PlanMyLeave - PlanMyLeave is a cloud based HR and leave management software.
TimeOffManager - TimeOffManager.com provides a fully automated online system for tracking and managing employee absence, leave, paid time-off and attendance.