1,170 employees have rated Synopsys Chief Executive Officer Dr. Aart J. de Geus and Dr. Chi-Foon Chan on Glassdoor.com. Dr. Aart J. de Geus and Dr. Chi-Foon Chan has an approval rating of 95% among the company's employees. This puts Dr. Aart J. de Geus and Dr. Chi-Foon Chan in the top 30% of approval ratings compared to other CEOs of publicly-traded companies.