Globally, the company currently employees about 25,000 people. Uber, as well as Lyft, does not consider drivers to be employees and they are not included in these numbers.
Uber became a publicly traded company in May, and in the run-up to its IPO, the company's business plans were scrutinized for their lack of a clear path to profitability. The stock lost 7.6% of its value on the first day of trade.
The following month, Khosrowshahi charged Jill Hazelbaker, previously senior vice president of policy and communications, with leading the marketing team. On Monday, he debuted a plan for a more consistent branding, the company said.
Meanwhile, Uber's rival Lyft saw a high-level departure as its chief operating officer Jon McNeill left the company, according to a notice filed with the Securities and Exchange Commission (SEC).
The news was first reported by Bloomberg. Lyft's co-founders will not replace him, Bloomberg said.
Lyft did not immediately respond to a request for comment on McNeill's departure.