Management Team


Peter Oncken

Managing Partner/ Strategy, Interim Management

Peter leads all airline investment and acquisition projects and manages the airline investments personally along with his highly skilled team. He has profound expertise in the aviation industry with a focus on airline restructuring and turn-around processes.

George Lioumbis

SVP Finance

George has held senior management positions within finance departments in different airline and tourist organizations, yet his main strength is the profound knowledge of the aviation industry economics.

Claus Fischer

SVP Airline Strategies

Claus Fischer has been in the airline industry since 1990 covering the commercial field of network planning, yield management, distribution, revenue accounting, sales and marketing. 

Pauline Hoogervorst

SVP Airline Innovation & Customer Experience

Pauline Hoogervorst has been working in the airline industry for more than 25 years in passenger-focused roles for various airlines.

As airline management professional and a consultant to the wider industry, she has been at the forefront of designing and delivering business change and transformation initiatives focused on customer service experiences. She achieved outstanding customer experience and loyalty programs, including project management of state-of-the art digital solutions for major European airlines and their service & solution providers.

Helmut Weixler

SVP Airline Operations

Being in the airline industry for since the early 1980's Helmut has acquired an extensive and invaluable experience across all areas of an airline, most notably as a pilot, instructor, examiner and senior airline manager.

Marcus Kresin

SVP Business Intelligence & IT Systems

Marcus Kresin has over 15 years of Airline and Travel, Transportation and Logistics related experience. At INTRO Aviation, he has advised numerous airline clients on a variety of projects including corporate strategy, due diligence reviews, business plan development, airline restructuring and business / IT process optimization.


Alexander Mair

SVP Maintenance, Repair and Overhaul

With over 20 years of experience in different roles within the global MRO industry having worked with companies like Air Berlin Technik, DHL and RUAG Aerospace, Alexander has gained extensive expertise enabling him to achieve outstanding results on critical maintenance projects. He was engaged in various cost reduction programs, lean management processes, in- and outsourcing projects, airline start up, turnaround and contract negotiation projects.

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Reto Manitz

SVP Airport Strategies

Reto Manitz studied at the Technical University of Berlin, Institute of Aeronautics and Astronautics. He obtained his master degree in 1994.

Reto worked for different companies including Pan American Airlines, Air France and Berliner Airport GmbH...

Norbert Steiger

Partner / Airport Strategies and Management

Norbert Steiger has over 25 years of experience in M&A and IT Outsourcing, commercial transformation, technology business strategy, and Joint Ventures. During his 8-year tenure at SITA as SVP New Ventures & Large Deals he developed a very successful business model of Airport IT commercialization and signed significant Airport Master System Integration (MSI) contracts as well as successful technology & commercialization consulting engagements with Airports around the world


In Memoriam

Cpt. Werner Borchert

SVP Airline Operations 

Capt. Werner Borchert was a seasoned senior executive, Captain, Instructor and Examiner on Airbus A330, 340 and 350 and a dear friend who unexpectably passed away in early 2017. He will be deeply missed.