There was a lot of moving and shaking in the cybersecurity unicorn world in 2019.

It was a year that saw two of the biggest exits in cybersecurity history: CrowdStrike went public valued at $3.35 billion and Cloudflare rocketed 20% in its first day on the stock market.

Clearly, the cybersecurity market is booming. Recent data suggests that cybersecurity investing could reach $250 billion by 2023, and spending rose in 2019 more than any other industry. If that pace keeps up, there’s little to suggest that the cybersecurity “bubble” will burst any time soon.

A number of cybersecurity companies are firmly in the club of private companies worth $1 billion or more. These unicorns represent some of the best talent, technologies and offerings in cybersecurity, but the club is getting crowded. Now that CrowdStrike and Cloudflare have graduated to the public market, there are a number of cybersecurity companies that could make the leap.

Tanium