Associate Directors


SIHC consists of a growing number of highly professional senior hotel, tourism or health care experts of international background. For each mandate, we provide you with the best-qualified consultants that suit the project brief in terms of expert knowledge as well as required local market know-how.

Michal Pitron - Associate Director Eastern Europe & Russia

Michal has over 20 years experience in hotel managenent, consultancy and training in Central and Eastern Europe. A graduate of the University of Hospitality Management in Prague, he worked across all levels of the hotel industry from front-line positions through to senior management.



Groups: IHG, Mövenpick Hotels & Resorts, Scandic

Type of Establishments: City Hotels, Boutique Hotels, Resorts, Leisure Hotels, Residences, Restaurant projects

Fields: General management, F&B, Pre & Post Openings, Re-branding, Development

Expertise: Hotel & gastro management, Asset Management, Innovation and Execution, Identification and Management of Acquisition & Development Processes, Market Entry Strategy, HR Management

Countries: Austria, Czechia, Poland, Slovakia, Russia

Credo: “You'll never change anything fighting the current reality. To change something, create a new model that surpasses the old one.”

Michal Pitron
Simon Wu - Associate Director South China


With over 25 years of industry experience in his native China Simon brings along a huge professional network across several of the world's most famous hotel chains, but also in membership club and marina management.



Groups: Shangri-La, IHG, Starwood, Vanke

Type of Establishments: Familiar with City hotels, Resort, International Conference Centers, high end Membership Club, Yachting & Marina Management

Fields: General Management, F&B Operations; F&B Marketing; Pre-opening; Membership Club Management

Expertise: Chinese Operation; Region/Culture Specialist within China; Promotions, Club Membership and Marina Management

Countries: PRC

Credo: “All cat love fish, but fear to wet their paws”

Ron Yariv - Associate Director Israel

Provides professional hotel management as well as consulting related to the hospitality industry and Co-Working. Ron has over 30 years experience in the hotel industry working for international hotel chains such as Hilton, Marriott, IHG as well as Regus (IWG). GM Cornell, FIU BS in Hotel Management and MBA from FIU. Protect and increase revenue as well as gaining market share is what drives him.


Groups: Marriott, Hilton, Africa Israel Hotels, Regus (IWG) Fattal

Type of Establishments: Resorts, Business hotels and CoWorking space

Fields: Hotels' GM, Managing Director International Sales, Country Manager

Expertise: Pre-/post- hotels and co-working operations. Hotel business plans & case study analysis. Hotel Sales & Marketing

Countries: Europe, Israel and USA

Credo: “Walk the talk”

Stefan Thumiger - Associate Director Middle East & Australia


30 years hotel management experience in Europe, Australia, Middle East and Asia, 19 years in senior roles. Adept in multi-cultural working environments, deep awareness of cultural diversity. Proficiency in complex operations, project planning and execution, sales & marketing and branding. Strong business acumen across all aspects of the tourism industry.



Groups: Sole Melia, Starwood, Hilton and Banyan Tree Hotels & Resorts

Type of Establishments: City and resort hotels, exclusive private social club, golf course, leisure activities with exposure to property and membership sales

Fields: General hotel management experience with a solid F&B background, pre-opening and project management, positioning and operating diverse businesses

Expertise: Rooms Division, Food and Beverage, Sales & Marketing, Project Management, Recreational Activities, Social Club and Golf Course

Countries: Switzerland, Australia, Vanuatu, Egypt, Turkey, UAE, Thailand, Korea, China, Indonesia, Singapore

Credo: “Everything is possible"

Portrait Picture Stephan Gnagi (close-up
Stephan Gnägi - Associate Director International


Stephan is a graduate of the acclaimed Ecole Hôtelière de Lausanne in Switzerland. His career in luxury hospitality spans over two decades, with extensive experiences in Asia and Europe where he held senior management positions



Groups: Raffles, Mandarin Oriental, One & Only, Hilton International, The Savoy London, Hotel Schweizerhof Bern

Type of Establishments: Business Hotels, Heritage Hotels, MICE Hotels, Resorts

Fields: Food & Beverage, Pre-opening, General Management, Cluster Management, Corporate Office

Expertise: Hotel and resorts operations, concept development, quality assurance programs, feasibility studies and performance improvement management

Countries: Switzerland, UK, Mauritius, Singapore, Hong Kong, Thailand, Malaysia, Cambodia, Indonesia

Credo: “The difference is in the details"



J.E. Williams

John E. Williams - Associate Director USA/Canada


With a wealth of experience in the USA, Canada and a couple of years in the Caribbean, John was an area Sales & Marketing specialist for both inbound and outbound of the American continent before joining SIHC.



Groups: Four Seasons, Marriott

Type of Establishments: City Hotels, Beach Resorts, Airport Hotel, Vacation Clubs

Fields: Sales & Marketing, General Management

Expertise: Hotel Development, Pre-opening, Re-Positioning, De-branding, Change Management, Quality Assurance, Profit Optimization, Guest & Team Member Satisfaction, Human Resources Management

Countries: USA, Canada, Puerto Rico

Credo: “Target beyond customer expectation”

Hiroshi Matsumoto - Associate Director Japan
Han Chang - Associate Director Taiwan
Sue Nguyen - Associate Director Vietnam
Moh. Ali Hassan Associate Director KSA/UAE
Ibrahim Moussa - Associate Director RSA/Westafrica