Ioanna Dretta – Biography
Last update: April 13, 2026Executive profile
Ioanna Dretta joined Quest Holdings in 2023.
Ioanna Dretta is currentlyChief Executive Officer and Director at REDS Real Estate Development & Services - View - REDS Real Estate Development & Services org chart
Director at Ellaktor - View - Ellaktor org chart
Non-Executive Director at Quest Holdings - View - Quest Holdings org chart
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Education
Ioanna Dretta has a Master of Science in Soil Mechanics and Engineering Seismology from Imperial College London in 2003 and a Master in Public Administration from Harvard University - Kennedy School of Government in 2011.
They have also studied at Imperial College London :
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They have also studied at Harvard University - Kennedy School of Government :
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The colleagues of Ioanna Dretta
Company Colleagues
- At REDS Real Estate Development & Services, Ioanna Dretta has 11 colleagues including Konstantinos Mpoulmetis (Director), Asimina Tsouplaki (Director)…
- At Ellaktor, Ioanna Dretta has 30 colleagues including Efthymios Bouloutas (CEO), Konstantinos Toumpouros (Director)…
- At Quest Holdings, Ioanna Dretta has 50 colleagues including Apostolos Georgantzis (CEO & Director), Ioannis Paniaras (Director)…
Industry Colleagues
- In the Information Technology & Services industry, Ioanna Dretta has 28,676 colleagues in 1,478 companies located in 69 countries. 12,690 executive movements have been recorded in the last 12 months. Learn more about Information Technology & Services.
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