Red Hat, Inc. is a top open source solution provider, who provides their solution to multiple Fortune 500 companies.
The Red Hat company is well known for Red Hat Enterprise Linux (RHEL) distribution.
Red Hat also provides JBoss middleware server, Virtualization for cross-platform, cloud computing technologies like Open Stack and CloudForms and much more.
It offers multiple professional Red Hat certifications for various technologies including Operating System, Storage, Virtualization, Cloud computing etc.