VLSI Softwares
Cadence, Synopsys, Mentor Graphics are the major EDA software tool vendors. Xilinx, Altera, Actel holds the major market share in FPGA/CPLD. Most of the FPGA Vendors have their own EDA Tool to program their FPGA/CPLD or products.
Simulators(Verilog and VHDL)
HDL Designer
Cadence NC
Iverilog
Synthesis tools
Leonardo Spectrum
FPGA Advantage
Physical Design tools
Tanner
MAGIC Layout Editor
Alliance CAD Tools
OCEAN
& nbsp; Irsim
Gtkwave
PSPICE / Hspice
Free VLSI Tools
MAGIC Layout Editor
Alliance CAD Tools
OCEAN
Iverilog
Irsim
Gtkwave
ISE Webpack
FPGA Development
Physical Design tools list are yet to be added
The List does not stop here. Many new companies are emerging and hence there is a very stiff competition in the number of EDA company's products.