To be successful as an  entrepreneur, you need employees who actually want to work for you. On Wednesday, LinkedIn released a new list of U.S. companies that have those workers.

The 2019 LinkedIn Top Companies list ranked the top 50 companies in America according to metrics like the amount of attention they attract from job seekers and their ability to retain employees. While Google parent company Alphabet is perhaps an unsurprising No. 1, the list includes businesses in a wide range of industries, from tech and financial services to marketing and sports.

Here are the nine privately-held companies that managed to crack the list:

  • Uber (No. 6 overall)
  • Airbnb (8)
  • The We Company (13)
  • Slack (23)
  • Pinterest (29)
  • Coinbase (35)
  • Major League Baseball (41)
  • Rubrik (42)
  • Snowflake Computing (49)

Notably, the five private companies that placed highest on the list are all reportedly on the brink of much-hyped IPOs. That's especially true for Uber, whose direct competitor Lyft had a rough entrance to the public market last week. (Lyft ranks No. 19 on LinkedIn's list.)

Perhaps the most unexpected business in the ranking is Major League Baseball, which is also a privately held company. According to the LinkedIn report, the league is hiring operations, media, communication, and engineering staff at a rapid rate. As LinkedIn editor-in-chief Dan Roth notes, MLB is also making headway in gender diversity efforts "by hiring more female umpires, scouts, and coaches."

To create the list, LinkedIn used its own data to analyze companies by four metrics: "interest in the company, engagement with the company's employees, job demand, and employee retention." The company excluded itself and its parent company, Microsoft, from consideration.