Dell Inc. is an American privately owned multinational computer technology company based in Round Rock, Texas, United States, that develops, sells, repairs, and supports computers and services.

Hewlett Packard Enterprise (HPE) is an American multinational information technology enterprise company, founded 1 November 2015 as part of the now-split Hewlett-Packard company.

Sophos Group plc is a security software and hardware company. Sophos develops products for communication endpoint, encryption, network security, email security and mobile security as well as unified threat management. Sophos is focused on providing security software to the mid market and pragmatic enterprise from 100 to 5000 Seat organisations, however they still do protect home users. It is listed on the London Stock Exchange and is a constituent of the FTSE 250 Index. Source: https://en.wikipedia.org/wiki/Sophos