our team

Byron P. Catéchis Director & Dean

Byron teaches in: French, German, English and Italian languages

Professional Organisations:

Member of the FSEA – Swiss Federation for Adult Learning

WSET® Educator for the following Wine and Spirit Education Trust qualifications:

  • Level 1 Award in Wine
  • Level 2 Award in Wines and Spirits
  • Level 3 Award in Wines
  • Level 1 Award in Spirits
  • Level 2 Award in Spirits
  • Level 1 Award in Wine Service

Member of the ASSP – Association Suisse des Sommeliers Professionnels

Internal Assessor for the following Wine and Spirit Education Trust levels:

  • Level 1 Award in Wine
  • Level 1 Award in Spirits
  • Level 3 Award in Wines

Member of the following judging panels:

  • Concours suisse des produits du terroir
  • Forum Romand des eaux-de-vie, Switzerland (spirits)
  • International Wine and Spirit Competition, UK (wine & spirits)
  • Sélection des vins de Neuchâtel, (wine)
  • Schweizer Schnapsforum, Switzerland (spirits)
  • Distisuisse 2017, Switzerland
  • International Wine Challenge 2016

Other activities:

  • Under contract to offer courses for Gastrosuisse in Valais, Berne, Fribourg, Zürich and Neuchâtel.
  • World of Coffee 2006 Trade, coffee & spirits workshops.
  • Gastronomia 2006 a series of wine and spirits workshops
  • 2006 – second in the Swiss National final for the “Ambassadeur de Champagne”
  • CIVC – Hotel School Competition – organising committee
  • German Wine – Hotel School Workshops & Competition – organising commitee
  • Sake workshops as of January 2014
  • Burgundy Masterclasses in partnership with the Interprofession des vins de Bourgogne
  • Conegliano Valdobbiadene Prosecco Superiore DOCG workshops for professionals restaurant & bartenders from October 2015 till March 2016

Professional Experience:

Over 20 years of experience in the 4 to 5 Star Deluxe hotel and Michelin Star segment. To date involved in 5 hotel and 1 restaurant openings which included the Dorchester in London, The Louis C. Jacob in Hamburg, a Hotel in East Africa (part of an international hotel chain) among others. 

Johanna Dayer

Johanna teaches in the French and English languages

Johanna has been interested in wine since passing her Swiss Matura diploma and continued in this path on her way to gaining her Bachelor degree with the Ecole Hôtelière de Lausanne. She has completed the various levels of the Wine and Spirit Education Trust qualifications, including the WSET® Level 4 Diploma.

Now as a student on the Masters of Wine programme, she is keeping herself busy by also studying for a Masters in Digital Marketing and Communication in Geneva. Johanna is currently also in charge of the public relations for Valais Mundi which is part of the Provins group and is also a consultant for wine producer in Provence, France.

Johanna teaches on the Certified Sommelier course in the English language, but also on our WSET® Level 3 Award in Wines for both the English and French language courses.

Our Sake experts:  


Natsuki Romano-Kikuya

Natsuki teaches in the English and Japanese language

Born into a family that has been running a Sake brewery in Akita, and a Buddhist temple in Toyama prefecture, both on north-west side of Japan where is nourished with the best ingredients from the mountain and the ocean, and where winter can be severely cold. During her school years in the United States, Natsuki spent most of her time dealing with international volunteering works and documentary film making featuring the boarder issues between the US and Latin American countries. Natsuki went back to Japan and worked 2 and half years at the business and HR consulting firm called Motivation Inc. in Ginza Tokyo.

Her Sake journey, to trace the path of her family roots, had started in 2009.
Natsuki had worked as a “Sake sommelier” at Zuma & Roka restaurant in London, UK, and in 2013. she had launched “Museum of Sake”, the Sake PR and Education agency to introduce and promote Sake to European markets.
Natsuki is helping to set up and will teach at WSET Level 1 & Level 3 Award in Sake launching in August 2014.

• Sake sommelier certified at Sake Service Institute (SSI)
• WSET Level 3 Award in Wine (2013)
• Sake Communicator Award 2011 winner by Sake Samurai and International Wine Challenge (IWC)
• Sake judge at IWC Sake Category since 2011
• Executive Sake sommelier at Sake Experience and Sake Award hosted by Hyper Japan since 2012
• WSET (Wine and Spirit Education Trust) The Sake Qualification Development Manager
• Bibendum Wine Sake advisor


Honami Matsumoto

Honami teaches in the English and Japanese language

Honami has been working with sake for nearly 15 years and is a Kikisakeshi-qualified sake sommelier, WSET-certified educator for Sake Level 3, Wine Level 1, Level 2 and an International Wine Challenge(IWC) Panel Judge in the sake category.

Having trained at Leith’s School of Food & Wine and Le Cordon Bleu, Honami is a qualified sommelier and has worked at some of London’s renowned places including luxury wine and spirits merchant Hedonism Wines.

Honami has planned and hosted numerous number of exciting sake events at Hedonism Wines and beyond, many of which had sake and food matching with various renowned restaurants and chefs in London.

Honami created House of Sake to provide carefully selected accessories, events, promotion and sake education to the UK and beyond.

Our team of Sommeliers:


Vincenzo Aiosi

Vincenzo teaches in the English, French and Italian language

Member of the ASSP – Association Suisse des Sommeliers Professionnels

A hospitality professional with over 20 years of experience in the hotel and restaurant business. Vincenzo’s travels took him around Europe to include Germany, England, Latvia as well as several Swiss Cantons.

Experience mainly in the Luxury segment including Relais & Château, Kempinski and Michel Roux’s The Waterside Inn (3 Michelin Stars). Currently employed by the Les Roches International School of Hotel Management as a lecturer specialising in the oenology subject area as well as Service Skills in general.

Having graduated from a hospitality school in Italy, Vincenzo has just completed and passed his Brevet Federal Qualification as a Sommelier with Changins.

Vincenzo is passionate about oenology and wines in general and gladly shares his passion for wine with all who attend his courses.

Vincenzo is the Swiss Sommelier Association’s representative for the ASSP – Certified Sommelier course organised on the Les Roches Campus in partnership with l’école du vin Sàrl and the Italian chamber of commerce.


Giovanni Ferraris

Giovanni teaches in the English, Italian and German language

Member of the ASSP – Association Suisse des Sommeliers Professionnels

Giovanni has worked his way up the career ladder following the traditional system from the bottom up, perfecting his skills on the way. He is currently Restaurant Manager and Sommelier for the “Kursaal – Restaurant Meridiano” in Bern.

Giovanni invests a lot of time and effort giving back to the profession and is currently the “Direttore del corso” for the ASSP – Sommelier courses in Bern as well as one of our external examiners for our ASSP – Sommelier course. Giovanni will also be teaching on some of the sessions such as the third module – Food and Wine matching among others.

Our team for brewing and distillation: will be finalised and announced in the coming months