4. Watchguard Technologies

WatchGuard Technologies also saw a drop in units sold year over year, down 12.6 percent to 7,387 in Q1 2017. It also saw a drop in market share percentage, from 9 percent to 7 percent. The Seattle-based company has continued to add to its portfolio in recent months, including the launch of a new Threat Detection and Response subscription solution in January and a new cloud-based secure Wi-Fi offering late last year.