Your Team

The Partner

THE TRAVEL CONSULTING GROUP is managed by highly experienced partners who have all served as CEOs and Top Management Executives in some of the largest and most reputed corporations in the global travel and hospitality industry for many years.

Associate Partner

Associate Partner has long term management and consulting experience as well and in addition strengthens our team with specific professional expertise

The Partners

Prof. Dr.

Adrian Freiherr von Doernberg

Founder & Managing Director

adrian.v.doernberg (at)

  • Born 1952
  • Consultant since 1985 (McKinsey and independently)
  • Professorship since 2006,  2006-2017 Hochschule Worms – University of Applied Sciences, since 2017 Hochschule Heilbronn – University of Applied Sciences
  • University Marburg, Germany
  • Diplom-Volkswirt (comparable to MBA)
  • Dr. rer. pol. (Ph. D.)
  • Professorship at Hochschule Heilbronn – University of Applied Sciences, Faculty for International Business
  • 25+ years working experience in the travel industry
    Board Member Lufthansa, European Travel Insurance Group, CEO AIDA-Cruises
    Member of Supervisory Board DER, First-Reisebüro-Gruppe, Airport Moskau – JV Aeroflot/ Lufthansa, Amadeus
  • Independent management consultant / project manager for Austrian Airlines Group, Kuoni-BTI Europe, TUI, Groupe Air France, Eurowings, Kuehne & Nagel etc.
  • Publication of more than 40 articles on travel and tourism subjects
  • Experience in strategy development, corporate development, skill and competence building, sales & marketing and restructuring
  • Many years of leadership (CEO & CMO level)

Gunther Holzschuh

Founder & Managing Director

gunther.holzschuh (at)

  • Born 1953
  • Management Consultant since 2011
        • Academy of World Trade Diploma
      • Certified Coach, NLP Basic Course, managing people, people motivation, time management, sales training, project management, PR and media training, interview techniques, participation in open course Design Thinking
      • Former CEO, Managing Director and Executive Board Member in communications, TV, travel and freight industries with focus on international business development
  • Extensive experience in setup of efficient sales & customer service organisations, in precise positioning and focussing of companies, in commercial negotiations on national and international level, in marketing and P.R., telecommunication, financial planning and analysis, TV-production, teleshopping and e-commerce
  • Various consultancy and implementation projects for end-to-end processes in the area of Corporate Business Travel
  • Business and Corporate Development
  • Strategy development and implementation
  • Supervision of generation- and ownership transitions
  • Coaching- and sparring partnership for Executives
  • Moderation of Strategy Workshops

Juergen Buechy

Founder & Managing Director

juergen.buechy (at)

  • Born 1951
  • Management Consultant since 2011
  • Former President of German Travel Association – DRV (2010-2014)
  • Longtime Chairman of Supervisory Board of AMEROPA-Reisen GmbH (Tour Operator) (2001-2015)
  • Chairman of Advisory Board of “ERV – EuropaeischeReiseversicherung AG” (Travel Related Insurance) (since 2003)
  • Chairman of Advisory Board of ”Faculty of Tourism/Travel Management, Hochschule Worms, University of Applied Sciences” (since 2010)
  • Vice-Chairman of Board of Trustees of Willy-Scharnow-Stiftung
  • Responsible for international business, sales and marketing, IT and personnel
  • 40+ years of professional experience in the airline, travel and railway industry
  • 20+ years of experience in top management positions as CEO, Managing Director, Senior Vice President at Deutsche Lufthansa AG/Lufthansa German Airlines, Start Amadeus GmbH/Amadeus GDS, Deutsche Bahn AG/German Railways
  • Extensive experience in leading, repositioning and restructuring of large corporations
  • Special competence and experience in the areas of strategic development, sales and distribution, marketing, key account management, product management and pricing, specifically in complex distribution structures with multiple distribution channels for business and leisure customers as well as national and international markets
  • High competence in analysis of complex management problems and strategic challenges, development of solutions and implementationsupervision

Wolfgang John

Founder & Managing Director

wolfgang.john (at)

  • Born 1956
  • Management Consultant since 2006
  • University of Erlangen-Nuremberg
  • Diplom-Kaufmann (comparable to MBA)
  • Certificate in Security, Training and Fleet Management from various Institutions
  • Former CEO, Managing Director and Executive Board Member for international and leisure airlines
  • Head of HR at SunExpress Germany 2015-2017
  • More than 30 years of airline management experience
  • Former CEO, Managing Director, Head of HR or Executive Board Member with several companies such as Aero Lloyd Flugreisen, Hapag-Lloyd Flug, TUI Deutschland, Start, Amadeus Marketing Company
  • Development and design of sales and marketing systems, restructuring and setup of marketing and sales organisations for leisure airlines, management of flight and ground operations, responsibility for HR and close interaction with trade unions
  • High level management experience as CEO, Managing Director and Chief Executive Officer with an emphasis on marketing and distribution, as well as a strong operational record in restructuring flight operations and start-up of new airlines (international, leisure, low cost and cargo airlines).
  • Broad experience in strategy and concepts for airline companies for various markets and segments; managing and efficient restructuring of sales and marketing organization, customer service, IT project management, and financial planning and analysis
  • Frequent speeches and lectures at universities, trade associations and conferences

Thomas Drexler

Partner & Managing Director

Thomas.drexler (at)

  • Born 1966
  • Management Consultant since 1991
  • University of Vienna
  • Master of Science in Business Informatics
  • More than 20 years of relevant work experience in the mobility and tourism sector
  • Head of Corporate Development, Start Amadeus
  • Managing Director Online Sales, Lufthansa Passenger Airline
  • Vice President Sales, Deutsche Bahn AG
  • Global Head of Rail, Amadeus IT Group
  • Senior Vice President Carrier Business, Silver Rail Group (Expedia)
  • Digitalisation specialist with proven history of success orchestrating highly profitable digital product development and e-commerce initiatives that drive bottom-line growth
  • Demonstrated skill leading sales and business development in highly competitive markets, leveraging extensive C-level relationships to negotiate large-scale contract
  • Expert in global rail distribution and rail backend SaaS solutions and services
  • Expert in the field of airline global distribution systems (GDS) and Airline IT solutions
  • Talent for building, leading, managing, and mentoring elite, high-performance management-level teams

Associate Partner

Jens Vongehr

Associate Partner

jens.vongehr (at)

  • Born 1964
  • Management Consultant since 2007
  • Certified information scientist
  • several management functions at Travel Management Companies (TMCs)
  • Senior Consultant in the field of GDS, Mid + Back-Office
  • Member of Executive Managment at software distribution company
  • 20+ years Professional experience in the area of corporate travel, travel & expense technology and touristic e-commerce
  • 18+ years management experience in different roles at TMC, GDS and Deutsche Bahn/German Railways
  • Substantial experience in selection (technical and commercial). implementation and optimisation of technology in the business travel field as well as for e-commerce solutions in the tourism market
  • End2end specialist with extensive experience in the implementation of international or global projects, excellent overview of all technical solutions available in the global market, direct contacts to all technology providers
  • highly developed communication skills on all levels, operationally as well as on an executive level