Red Hat Inc. provides open source software solutions to more than 90% of Fortune 500 companies, including Internet service providers, airlines, healthcare companies, and commercial banks. The company has been around for more than two decades and is well known for its Red Hat Enterprise Linux (RHEL) distribution. Red Hat provides a completely open technology stack, which you can modify to suit your needs; it is not tied to the view of the vendor of the software or the stack components. Red Hat's portfolio of products and services also includes JBoss middleware, cross-platform virtualization, cloud computing (CloudForms and OpenStack), and much more.

Red Hat offers numerous professional certifications based on its software products, including operating systems, virtualization, storage, and cloud-based solutions.
Red Hat certification Program Overview
The Red Hat certification program is intended for system administrators, engineers, architects, business developers, and application administrators, as well as virtualization and cloud administrators, who use RHEL in their IT infrastructures. The certification program aims to ensure that candidates master RHEL by requiring them to pass performance-based certification exams. While many certification exams pose multiple-choice or blank questions on specific technologies, Red Hat requires you to perform and complete real-world tasks using Red Hat technologies to pass your exams.
Traditionally, Red Hat offered certification exams only after completing a training course. You can now take a Red Hat exam on your own schedule, outside of training, if you wish. Each exam session is conducted on a secure system in a professionally supervised test center. These centers are located in select cities in the United States, Europe, and Asia.
Once you are certified by Red Hat, you will become a Red Hat Certified Professional. This gives you access to Red Hat Certification Central, which allows you to connect with potential employers, join the Red Hat community, create study groups, and collaborate on projects. Plus, you can explore Red Hat training options and easily schedule individual exam sessions. There are also discounts on recertification exams.