Gunnar Siebert – Biography
Last update: January 8, 2026Executive profile
Gunnar was Chief Executive Officer at German Cyber Security Organization, and Chief Marketing Officer at Secude International. Gunnar Siebert joined Aon in 2021.
Gunnar Siebert is currentlyHead of Mergers and Acquisitions Cyber, Germany, Austria and Switzerland at Aon M&A & Transaction Solutions - View - Aon M&A & Transaction Solutions org chart
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Education
In 1997, Gunnar Siebert completed a Master of Science at Technische Universität Berlin.
They have also studied at Technische Universität Berlin :
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- At Aon M&A & Transaction Solutions, Gunnar Siebert has 30 colleagues including Gary Blitz (CEO), Brian Cochrane (Chairman)…
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- In the Insurance industry, Gunnar Siebert has 69,216 colleagues in 3,978 companies located in 106 countries. 20,910 executive movements have been recorded in the last 12 months. Learn more about Insurance.
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