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 Magma Design Automation - EDA Tools for layout, etc
Mentor Graphics - EDA Tools for digital, analog, pcb, etc.
Synopsys - EDA Tools for digital, analog, pcb, etc
Cadence - EDA Tools for digital, analog, pcb, etc.
Celoxica - EDA Tools for ESL development
Elgris - Electronic Tools for EDIF data format translation, etc
Xilinx - FPGA and Development Tools, sram based
Altera - FPGA and Development Tools, sram based
Actel - FPGA and Development Tools, flash based
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