PSIM
LTspice
Circuit Tree
Circuit Simulator
CircuitLab
Pspice
Proteus PCB design
Logisim
ModelSim
Synopsys VCS
Cadence Incisive
Riviera-PRO
gEDA Project
VCS
Proteus PCB design
Logisim
PSIM ModelSimLTspice - LTspice® is a high performance SPICE simulation software, schematic capture and waveform viewer with enhancements and models for easing the simulation of analog circuits.
Synopsys VCS - HDL Simulator of System Verilog, Verilog, and VHDL for ASIC design and verification.
Circuit Tree - Design and order Boards in Minutes
Cadence Incisive - System Verilog, Verilog, VHDL, SystemC HDL Simulator for ASIC Design and Verification
Circuit Simulator - Animated electronic circuit simulator using ideal components to visualize voltage and current.
Riviera-PRO - System Verilog, Verilog. VHDL, SystemC, HDL simulator targeting ASIC and large FPGA designs.
