Travis Kalanick, CEO of Uber Uber Uber just turned five, and it's grown from four employees to more than 3,000, said Ryan Graves, head of Uber's global operations.

The company trotted out some of its earliest employees for a scripted look back at its first five years as a company.

Before the event started, slides showed some of the companies milestones, including the first cease and desist letter Graves received in 2010, Uber delivering 400 piñatas in Mexico City, and the first baby born in an Uber.

"It’s been 5 years, and we went from four people around the desk to something that is around the world," CEO Travis Kalanick said during the company's celebration event at Uber's headquarters.

The crowd included Kalanick's mother, who was tearing up as he took the stage, and some of the companies earliest investors. San Francisco Supervisor Scott Weiner also earned a shoutout during the comments for attending the party.

Kalanick also acknowledged his somewhat controversial image as a CEO.

"I realize that I can come off as a somewhat fierce advocate for Uber," Kalanick said. "I also realize that some have used a different 'a' word to describe me."

Here's how it's grown: