7. Hewlett-Packard Enterprise
Although small, HPE's Q1 year-over-year sales increase was one of the bigger increases registered by operations and networking software vendors during the quarter, according to NPD's data. The Palo Alto, Calif., vendor sold $44.5 million in systems during the quarter compared to $34.2 million in the same period a year ago. HPE has a variety of operations and networking software, including products from its Aruba networking business, like AirWave, and its Intelligent Management System product.