Absence - Employee vacation tracking system

Synopsys VCS - HDL Simulator of System Verilog, Verilog, and VHDL for ASIC design and verification.

CWS TimeOut - CWS TimeOut is an online leave tracking software or absence management solution that can also be installed on the server.

Riviera-PRO - System Verilog, Verilog. VHDL, SystemC, HDL simulator targeting ASIC and large FPGA designs.

PTO Ninja - Slack app helping teams better manage time off

Cadence Incisive - System Verilog, Verilog, VHDL, SystemC HDL Simulator for ASIC Design and Verification