About us

KOISHI – restaurant focused on fish and sushi. The menu is composed of original and contemporary European cuisine closely linked to Asian elements.
The highest quality in seafood, saltwater fish and freshwater fish is essential to our chef’s preparation.

The accent of fresh ingredients forms the ideal conditions for sushi prepared by our Sushi Master – Noritada Saito.

This is not only the cornerstone of the philosophy by which we run our restaurant but it is the whole mosaic that adds to the further quality without which one could not fully grasp unless they visit us.

Meet the Owner
Simona Elsnerová

…prefers swirling paths to the busy highways; treats a challenge as the most welcomed gift; perceives failure as experience that can be benefitted from; she sees the depths as a balancing factor to the heights and the other way around; she believes that via food a man may understand themselves and thus does not in this respect –  hesitate to push the limits of what is deemed possible.

She is a born organiser and a marketing manager with experience and expertise in multinational and private companies focusing on gastronomy. Having experienced running her own company she joined Janek Martinkovič in 2008 and together they founded the KOISHI restaurant on Údolní street in Brno which can annually be found in TOP10 best Czech restaurants

Ever since it’s establishment the restaurant has been ranking at the top places in the Maurer’s Grand Restaurant  Selection.

1st place awarded in 2013in this independent selection of the best restaurants in Czechia – GRAND RESTAURANT 2013.

2016 and 2017: KOISHI restaurant was awarded the 1st place in the selection of the best restaurants GOURMET BRNO.

2010 -KOISHI restaurant as awarded the Certificate  of the Tokyo  Association  of Sushi-masters as an enterprise with high standards of quality of the ingredients, the meals and the services.

People in Koishi

The concept and the physical appearance of KOISHI originated almost two years. But Janko Martinkovič began playing with an idea to open his own business decades ago. His dream got clearer outlines in 2006 when he found an ideal place for his plan in emerging gourmet district on Údolní Street.

Noritada Saito


Janko Martinkovič

owner, sommelier

With all due respect to the local sushi, I recommend everyone to try the second dimension of the menu. Unreal! Excellent harmony of pure tastes, Kambala with beef cheek, Zander with blood sausage, Jerusalem artichoke soup, coconut curry soup, unbelievable desserts – gastronomic top.
Rostislav Křivánek - Facebook post