Who are the most significant personalities in the ICT industry? In 2010, the COMPUTERWOCHE editorial team published its first Who's Who, ranking the top 50. Encouraged by the overwhelming feedback, they have now listed the 100 most important personalities. The editorial team considered the following criteria: What is the weight of the person's voice in the industry and beyond (society, politics, science)? Can they be described as an ICT visionary? How does the person present themselves publicly, as well as to customers, employees, and partners? What concrete achievements do they have to show? How is their economic success to be evaluated? What is the future role of this person in their environment?.