


Employees at 8x8 rank David Sipes in the Top 5% of CEOs in San Francisco. Similarly, employees at OpenPhone rank Mahyar Raissi in the Top 5% of CEOs in San Francisco. Employees rate their CEO differently based on the frequency of interaction, ability to affect company culture, and drive measurable results.

Women at 8x8 rated their CEO an A+

Women at OpenPhone rated their CEO an A+

Diverse Employees at 8x8 rated their CEO an A+

Diverse Employees at OpenPhone rated their CEO an A+


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At 8x8, employees in the HR department rate David Sipes the highest. According to employees, David Sipes' ability to drive business results is Excellent. At OpenPhone, the Sales department's employees rate their CEO highest.