The internet is the Wild West of our age. The Seattle companies featured here are today’s equivalent of the crews deputized to protect honest businesses trying to survive life on the frontier.

It’s been a big year in Seattle tech so far, with a fresh crop of startups leveraging artificial intelligence, big data, breakthrough security strategies and more to transform industries of all stripes. This is our list of 50 startups who show enough promise — through transformative technology, brilliant ideas or seasoned founders — to warrant keeping an eye on into 2019.

Polyverse, a cybersecurity startup that was named one of the world’s top 100 startups by CNBC last year, announced Thursday it raised $8 million.