From Dropbox’s $9 billion valuation at its IPO to Salesforce’s $6.8 billion acquisition of MuleSoft, 2018 has been a lucrative year for the movers and shakers in the enterprise tech business.

Once considered a less glamorous sideshow to flashy consumer internet companies, enterprise tech startups are enjoying a renewed surge in interest thanks to innovative new services powered by AI and cloud computing, and an expanding opportunity to tap into vast new markets.

Business Insider scouted the field of VCs to round up the names most respected and sought after in the specialized world of enterprise technology. Here’s the list.