Astrasana is an internationally active Swiss cannabis company with three other companies in the Czech Republic, Germany and Japan.


Astrasana Japan Co. Ltd. is the Japanese subsidiary of Astrasana Holding AG, based in Switzerland. The Astrassana Group is active in Switzerland, the Czech Republic, Germany, the UK and Japan.

Chikako Yoshida

Managing Director Japan

Ms Yoshida managed the Japanese market for an international cannabis company based in the UK for 4 years.

Previously, she worked for 15 years for international government institutions such as the United Nations, the Drug Enforcement Agency and the Japanese Ministry of Foreign Affairs. At Astrasana Group, she leads the expansion of the distribution network as Managing Director and Board Member of the Japanese subsidiary.

Mr. Antoniazzi has been working for well-known cannabis companies in Europe since 2017, where he managed supplier relations, logistics and expansion. 

Together with his business partners he founded Astrasana Holding AG and is now mainly focused on the expansion of the company network as well as the development of new strategic alliances and international projects within the Astrasana Group.

Yves Antoniazzi

Managing Director

Dr. Bernhard Sorg is a renowned Zurich sports and club physician with over 40 years of practical experience. Even before the new change in the law in favor of medical cannabis, he treated a large number of patients with cannabis-based medicines. 

Dr. Sorg supports Astrasana in all specialist matters and complements the team with his distinctive network in the Swiss healthcare industry.

Dr. Bernhard Sorg

Board of Directors/Physician

Mr. Mihajlovic has been the dedicated managing director of Rosengarten Apotheke AG since 2011. Passionate about cannabis and pharmaceuticals, he is equally dedicated to the research and development of novel products. 

As project manager of the distribution of medicinal cannabis through his pharmacist network, he maintains constant contact with the authorities and supports Astrasana in specialist and technical matters.

Dr. Ivan Mihajlovic

Board of Directors/Pharmacists

Mr. Bliggenstorfer is a qualified pharmaceutical sales representative and was responsible for the sales of medicinal products in the sales force of Drossapharm for 20 years. 

He has an extensive network of physicians and pharmacies and supports Astrasana Pharma as a Pharmaceutical Advisory Board Member in the sale of its medical products.

Ueli Bliggenstorfer

Pharmaceutical Advisory Board

Mr. Beck, a graduate engineer, supports various well-known pharmaceutical and medtech companies in optimizing processes and business models. 

He supports the Astrasana Group in all technical and professional matters and complements our company with his pharmaceutical network to foster exchange and collaboration with relevant partners.

Horst Beck

Technical Advisory Board

Dr. Ryska is a Fulbright Alumni and professor at the University of Economics in Prague/CEMS. He has been involved in cannabis research for 20 years, focusing primarily on patient therapy. 

As the managing director of Astrasana Czech s.r.o., he leads, among other things, the research project in favor of medical cannabis in cooperation with the University CEMS in Prague.

Dr. Tomas Ryska

Managing Director Czech

Mr. Mallach has worked in the cannabis industry for five years, driving the growth of a UK cannabis company from 5 to 60 employees. His focus has been on acquiring key accounts in the UK and Europe.

As Sales Manager of Astrasana Group, he leads a 4-person sales team and is responsible for customer expansion in Europe.

Sam Mallach

Manager Business Development Europe & UK

Mr. Perneel, a former marketing and brand manager for international retail groups, is known for his network of relationships and entrepreneurship in the Benelux. As CEO of Nexgen/DLH, the leading CBD and tobacco company in Belgium, he controls 70% of the domestic market.

Thanks to a minority shareholding of Astrasana Holding AG in his company, an offtake channel for almost 50% of the production capacity of CBD extracts and flowers opened up.

Joeri Perneel

Director & Brandmanager DLH/Nexgen

Mr. Smida, co-founder of the Pilulka pharmacy chain, is primarily responsible for pharmaceutical sales in the Czech Republic. As a sales manager at various pharmaceutical and industrial companies, he was responsible for exponential sales increases and new market openings. 

In the joint venture with Astrasana Pharma s.r.o., he is leading the sales of cannabis-based medicines in Czech pharmacies and clinics.

Miroslav Smida

Sales Manager

Lindauerstrasse 21
8317 Tagelswangen

+41 44 545 28 50