- A+ Certification: Comp TIA sponsors A+. This certification proves that the person has the skills and the training to detect computer problems and repair them. This is a simple certification program for new hardware technicians. A+ certification is not based on vendor specifications, though the core necessity of this certificate is Microsoft knowledge of the Windows operating system.

- Accelerated SAP: This certification is supported by SAP AG. This notes that the person is trained to use this skill in more than one category: Accelerated SAP Implementation, Customer Solution Strategy and Continuous Business Improvement.

- ACDT or Apple Certified Desktop Technician: The holder of this certification has the competence to repair and troubleshoot Macintosh desktop systems, such as Power Mac G5 and iMac. They can resolve and identify the common OSX problems and use Apple Service and Support practices and products to repair Apple hardware.

- ACHDS or Apple Certified Help Desk Specialist: This certification indicates that the holder has the OSX core practicality and also has the capability to configure key services, assist end users with essential Mac OSX material and perform basic troubleshooting. This certification provides the technical skills needed by a Mac OSX specialist, who operates a desktop to help or assist Mac OSX users with technical issues.

- ACPT or Apple Certified Portable Technician: This certification holder has the capacity to detect problems and also repair Macintosh portable systems such as PowerBook G4 and iBook. They emphasize identifying and resolving common OSX problems.

- AIS or Advanced Information Security: This certification is used by IT networking and security professionals, who focus on assessing security risk to prevent security breaches. Security University offers this certification and it is a highly developed course that requires expert knowledge of security technologies. This certification is further broken down into two major areas: Anti Hacking Certification and Computer Security Fundamentals.

- CBNT or Certified Broadcast Network Technologist: This certification is designed for people who wish to use the basic networking hardware within broadcast facilities.

- CCDA or Cisco Certified Design Associate: This certification is supported by Cisco and authorizes the holder to demonstrate basic knowledge of network design within the Cisco Infrastructure. This certification also includes the designing routed and switched network involving WAN, LAN and also provides dial access service.

- CCE or Computer Certified Examiner: This credential is designed to authorize professionals in the field of computer forensics.

As the Internet world has grown in an amazing extent during the past two decades, the need for skilled professionals has also increased. IT professionals who attain the above certifications will almost always be gainfully employed.