Where can I find your official authorization of the countries you are offering your services?

The list of the countries we're authorised in together with the links to where they have the confirmation of our authorisation you can find below:

Austria - Finanzmarktaufsichtsbehörde
Belgium - FSMA - Autoriteit voor Financiële Diensten en Markten/Autorité des services et marchés financiers 
Bulgaria - 
Croatia -  
Cypres - 
Czech Republic - Financial and Capital Market Commission
Denmark - Finanstilsynet
Estonia - Finantsinspektsioon
Finland - Finanssivalvonta / Finansinspektionen
France - Autorité des Marchés Financiers
Germany - Bundesanstalt für Finanzdienstleistungsaufsicht
Gibraltar  - 
Greece - 
Hungary - Magyar Nemzeti Bank - The Central Bank
Iceland - 
Ireland - Central Bank of Ireland
Italy - Commissione Nazionale per le Società e la Borsa
Latvia - Finanšu un Kapitäla Tirgus Komisija
Liechtenstein - 
Lithuania - https://www.lb.lt/lt/finansu-rinku-dalyviai/etfmatic-limited
Luxembourg -
Malta - 
The Netherlands - Autoriteit Financiële Markten

Norway - Finanstilsynet
Poland - Komisja Nadzoru Finansowego

Portugal - Comissião do Mercado de Valores Mobiliários 
Romania - 
Slovakia - CMVM - Comissao do mercado de valores mobiliário
Slovenia - 
Spain - Comision Nacional del Mercado de Valores
Sweden - Finansinspektionen

And obviously we're also authorised and regulated by the Financial Conduct Authority in the UK.