Hewlett-Packard Company aka HP is an American multinational information technology corporation manufactures server, storage solutions.
Hewlett Packard Enterprise offers a number of cloud ready server solutions including ProLiant servers that improve the efficiency of your data center.

Dell Inc. is an American privately owned multinational computer technology company, that develops, sells, 
repairs and supports computers and related products and services.
Dell Power Edge Servers Built For Most Demanding Workloads. Ultra-fast And Easy To Manage. Flexible Internal Storage. Integrated Security and large Internal Capacities.

The International Business Machines Corporation is an American multinational technology and consulting 
corporation, manufacturing servers, UPS and computers.
IBM offers a full range of servers deliver superb performance and high availability, can be deployed in private or hybrid cloud environments, and are designed with a focus on security.

​Lenovo Group Ltd. or Lenovo PC International, is a multinational technology company with headquarters in China and United States. 
From growing small businesses to enterprise workloads, Lenovo servers offer unmatched value and meet mission-critical demands with legendary quality and reliability.

Synology Inc. is a Taiwanese corporation that specializes in Network-attached storage appliances (NAS). Synology’s line of NAS is known as the DiskStation for desktop models, FlashStation for all-flash models, and RackStation for rack-mount models. Known for its durability, high quality and efficient products.