This year, cloud technologies and security made up the top six certs by salary, up from the top four in the previous year. This comes as no surprise, considering their high demand among employers. Still, project management remains another high-paying option, which is important to note since it's been a top contender for more than a decade. IT professionals with these skills are in high demand and tend to command the largest paychecks overall. The data is based both on what Global Knowledge's customers study and the jobs they find after they graduate. Below, we've listed the pack leaders along with a description of the specialization and a corresponding average salary.