Frank G. Heßler
Education
Johannes Gutenberg University Mainz
, 1996-01-01 - 1997-01-01
Crestcom Business Leadership Training
, 2014-01-01 - 2016-01-01
Motorflugschule Egelsbach
, Commercial Pilot License 2006-01-01 - 2007-01-01
Willigis-Gymnasium Mainz
High School, 1986-01-01 - 1995-01-01Work Experience
Transsonic Capital GmbH
Current
Transsonic Capital GmbH
WSHB GmbH
Current
WSHB GmbH
Transsonic Aircraft Charter GmbH
Current
Transsonic Aircraft Charter GmbH
Schlafender Hase, Inc.
2014-04-01 - 2025-06-01
Schlafender Hase, Inc.
Schlafender Hase
2001-05-01 - 2025-06-01
Schlafender Hase
HELI-FLIGHT JLR gGmbH
2017-10-01 - 2021-12-01
HELI-FLIGHT JLR gGmbH
Transsonic Music Publishing
2007-01-01 - 2010-01-01
Transsonic Music Publishing
Transsonic Records
2007-01-01 - 2010-01-01
Transsonic Records
fh digital service
1995-01-01 - 2001-01-01
fh digital service
Skills
Summary
Frank Hessler is the Founder of Schlafender Hase GmbH, a company he co-established in 2001 and led for over two decades. As CEO, he was instrumental in shaping the company’s flagship product, the Text Verification Tool (TVT), and in building a trusted brand, especially within the pharmaceutical industry. After handing over executive leadership in 2025, Frank has focused on managing and expanding his investment portfolio through Transsonic Capital GmbH, with a particular interest in innovative startups and long-term business partnerships. He remains actively involved as a shareholder and advisor in Schlafender Hase and other ventures. In addition to his business activities, Frank is passionate about aviation and music. He holds a commercial pilot license and is the founder of Transsonic Aircraft Charter GmbH, combining entrepreneurial spirit with his love for flying.
