ABOUT US
OUR TEAM

Thomas de Ruiter
Managing Director / Owner
With over a decade of experience spanning the global aviation industry, Thomas brings a proven record of operational excellence, compliance leadership, and strategic vision to Swiss Sky Aviation.
As Managing Director, Thomas leads the company with a clear mission: to ensure every client achieves sustainable growth through robust compliance, safety, and performance standards. His expertise bridges the worlds of commercial and regulations in aviation — having worked with more than 25 Civil Aviation Authorities worldwide.
NP Positions:
Flight OPS (CMM & SM)
Part 145 (CMM & SM)
Part CAMO (CMM & SM)
ATO (CMM & SM)
Part 21 G (CMM & SM)
Part IS (CMM & SM)

Tassilo von Merveldt
COO
Behind every great vision stands the steady hand that turns ambition into reality.
At Swiss Sky Aviation, that hand belongs to Tassilo, our Chief Operating Officer — a calm, detail-oriented aviation professional whose structured approach ensures excellence in every operation.
NP Positions:
Flight Ops (SM)
CAMO (CMM & SM)

Philipp Portmann
CISO
Philipp leads the Information Security domain, ensuring that our clients meet the standards in data protection and cyber resilience. As Head of Information Security, he is responsible for ISO 27001 compliance and the implementation of EASA Part-IS requirements. With a pragmatic and structured approach, Philipp safeguards systems, supports secure operations, and strengthens trust across our aviation environment.
NP Positions:
Part IS (CISO)

Danielle Wittwer
Executive Assistant
Danielle is the driving force behind our daily organisation and coordination. She keeps schedules aligned, supports ongoing projects, and ensures smooth communication across management, clients, and partners. With her structured and proactive approach, Danielle helps the team stay efficient, and ready to deliver.
