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About 02

about us

Our Team

 A multicultural team of committed professionals:

At Ryan VAT Systems, we understand that the value we bring to our clients is the value of the professionals we employ. Our teams are comprised of a unique multicultural mixture of tax experts, lawyers, economists, accountants and business administration professionals, with extensive international experience. Over fifteen nationalities are represented within Ryan VAT Systems’ offices.


Our consultants count on their expertise, on their team management as well as the company’s network, to provide our clients with high quality global solutions for all their international taxation issues.


A management team at your disposal:

Our managers relentlessly promote excellence and keep their teams focused on practical guidance

and straight-to-the-point advice. Whenever necessary they provide clients with their direct support.


Andreas has over 20 years of international taxation experience, including 15 years as CEO of Ryan VAT Systems, which he founded in 2004. He has a postgraduate degree in Private International Law from the University of Paris II Panthéon – Sorbonne. Before founding VAT Systems he was General Counsel of a group of companies in the fashion industry and thereafter Director of Development and Sales Manager for consulting companies specialized in international VAT.

Languages: French, English, Greek, Italian

Executive Director – Compliance & Consulting

Mariana Principe is the Head of Compliance. She graduated in Economics and holds a Master degree in Management from Católica University of Porto. Mariana joined Ryan VAT Systems in 2013 and before she worked during 5 years at Deloitte in Porto in the Audit and in the Indirect Tax Department. 

Languages: Portuguese, English, Spanish

Justin H. MILLER
Director – Compliance & Consulting
Justin Miller is the Head of Consulting. He graduated in Law and he studied at the Inns’ of Court School of Law in London. He has 20 years of experience working in international indirect taxation. Justin joined Ryan VAT Systems in 2013 and before he has worked as a Barrister and as Avocat. He has worked for HMRC, and he was Director in the Indirect Taxes & Customs department at TAJ / Deloitte for 8 years and thereafter Director of the Indirect Taxes Department for the Financial Sector at Ernst & Young in Paris.

Languages: English, French

Verena HENON
Director – Client Services

Verena Henon is a Director within the Client Services department. Before joining Ryan VAT Systems in 2006, she held the position of Export Account Manager and Key Account Manager in sectors as the automotive, the digital imagery and the financial consulting. She holds a double Master degree in International Trade at the International Institute of Trade and Distribution in Paris and at the HES Rotterdam University, the Netherlands, with a specialization in International Trade Development.

Languages: French, German, English

Director – Client Services

Nuria Profitos leads the Client Services department. Nuria joined Ryan VAT Systems in 2007 as Account Manager and later has been in charge of transversal projects involving our group, as Corporate Projects Manager. Before Ryan VAT Systems, she worked as Purchase manager in Europe and as Investment manager to accompany foreign investments in France. She holds a Master II in International Trade at INALCO in Paris and a Bachelor degree in Political Sciences at the University of Paris I Panthéon – Sorbonne.

Languages: French, Spanish, English

Director – Tax Recovery

Julie Lesage joined Ryan VAT Systems as consultant in 2007. After holding several management positions within the two departments Compliance and Tax Recovery, today she leads the Tax Recovery Operations department. She is also responsible of the Quality Management System of the group. She graduated in Business Law and Taxation from the University of Lyon 3 and from the Queen’s University of Belfast, Northern Ireland.

Languages: French, English, Danish

Director - IT Solutions

Luis Domingues is the Director of IT Solutions. He graduated in IT Systems Management at the Atlantic University.
He has 25 years of experience in software development. Luis joined Ryan VAT Systems in 2019 and before he has worked at the Landbell Group for the past 10 years, responsible for the design and implementation of the IT solutions along the 16 European offices and later on to sell and implement the Group solutions to customers around the globe.

Languages: Portuguese, English, French, Spanish

Carsten MUNDT
Director – VAT Systems Hungary

Carsten Mundt joined VAT Systems in 2007 as co-founder of VAT Systems Hungary, of which he is General Manager. He is also the founder of an accounting firm in Budapest. He has a Masters in Economics from the University Corvinus of Budapest, Hungary.

Languages: German, Hungarian, English

Senior Manager – Compliance & Consulting

Aline Rodrigues graduated in Law and holds  a Master II in Fiscal Law from University Assas-Paris II and a Master II in Community Law of the University of Paris XI. She has 17 years of experience as a French lawyer specialized in international indirect taxation. Aline joined Ryan VAT Systems in 2015 and before she worked 7 years as Senior Manager in the department of Indirect Taxes & Customs at FIDAL (KPMG) and then 4 years in the Indirect Tax & Customs department of Ernst & Young, in Paris.

Languages: French, English

Senior Manager – Compliance & Consulting

Marie Milon graduated in Business Law and holds a Master II in European Law from the Law University of Paris XII. Marie joined Ryan VAT Systems in 2011 and before she worked 6 years as an advisor for companies in the field of European Law within a network developed by the European Commission.

Languages: French, English, Italian

Senior Manager – Compliance & Consulting

Marco da Veiga graduated in Accounting in Porto Accounting and Business School and holds a postgraduate degree in Management. He is a member of OCC - Portuguese Chartered Accountants Association.
Marco joined Ryan VAT Systems in 2010 and before he worked as a chartered accountant.

Languages: Portuguese, French, English

Cristela MOTA
Senior Manager – Compliance & Consulting

Cristela Mota graduated in Economics in Minho University of Braga. Cristela joined Ryan VAT Systems in 2013 and before she worked during 6 years at Deloitte in Porto in the Transfer Pricing Department.

Languages: Portuguese, English

Francisco FECHAS
Manager – Compliance & Consulting

Francisco Fechas graduated in Economics in Nova School of Business and Economics of Lisbon. Francisco joined Ryan VAT Systems in 2017 and before he worked during 7 years at KPMG in Porto in the Indirect Tax Department.

Languages: Portuguese and English

Agnieszka MIEDZIK
Manager – Compliance & Consulting

Agnieszka Miedzik graduated in Finance and Banking and she holds a Master degree in Finance and Accounting from the Warsaw University of Life Sciences. Agnieszka joined Ryan VAT Systems in 2010 as a Consultant.

Languages: Polish, English, Portuguese

Junior Manager – Compliance & Consulting

Sara Gomes graduated in Accounting in Instituto Politécnico do Cávado e do Ave. Sara joined Ryan VAT Systems in 2013 as VAT Accountant in Compliance and Consulting department. After 6 years of experience working in the Company, she become a Junior Manager responsible for the supervision of the VAT Accounting team. 

Languages: Portuguese, English

Junior Manager – Compliance & Consulting

Marta Fertuzinhos is responsible for the VAT/GST Registrations & Takeovers. She graduated in Accounting in Lusíada University. Marta joined Ryan VAT Systems in 2009 as an Accountant and moved in 2013 to Spain to work as Finance Supervisor at Emirates Airlines. She returned to Ryan VAT Systems in 2017 to implement the Registrations Department.

Languages: Portuguese, English, Spanish

Junior Manager – Compliance & Consulting

João Veiga graduated in Economics in the Minho University of Braga. Before João joined Ryan Vat Systems he worked during 10 years at KPMG in Porto in the Indirect Tax  Department.

Languages: Portuguese, English

Junior Manager – Compliance & Consulting

Maria Maurício graduated in Law in Coimbra University and holds a Master in Public International Law from Oporto Catholic University and a Master in European and Transglobal Business Law from Minho University. Before Maria João joined Ryan VAT Systems she worked during 2 years in a Law firm and during 4 years at Deloitte Belgium Global Tax Center of Compliance.

Languages: Portuguese, English

Patricia GOMES
Junior Manager – Compliance & Consulting

Patricia Gomes graduated in Economic and Social Management in University d’Avignon et des Pays du Vaucluse. Patricia joined Ryan VAT Systems in 2013 as Tax Assistant in Compliance and Consulting department. After 6 years of experience working in the Company, she become a Junior Manager responsible for the supervision of the VAT Accounting team.

Languages: Portuguese, French, English

Junior Manager – Compliance & Consulting

Ana Pinto graduated in Law in Católica University of Porto. Ana joined Ryan VAT Systems in 2016 and before she worked during 2 years at Mars Portugal in the Sales Department.

Languages: Portuguese, English

Our Companies

VAT Systems is an international group of companies the purpose of which is to act as a one-stop-shop for all international taxation issues in over 50 countries.

Founded in 2004, our group is currently headquartered in France. We operate in Europe and around the world through  our own subsidiaries and our international network of tax specialists.

VAT Systems Group is composed of the following companies:

  • VAT Systems France
  • VAT Systems UK
  • VAT Systems Portugal
  • VAT Systems Spain
  • VAT Systems Hungary
  • VAT Systems Bulgaria
  • VAT Systems Italia
  • VAT Systems Romania


Our expertise covers tax regulations of more than 50 countries, in Europe and around the world.

Our operations are organised into two departments, Compliance and Consulting and Tax Recovery Operations. We provide a full range of services to Key Accounts and Mid-caps established in over 30 countries.

VAT Systems is a member of the International VAT Association (IVA) working at the forefront of shaping EU policy on VAT issues 

Our Network

Our Subsidiaries
Our partners

While we assist our clients focusing on a comprehensive view of all their operations in different countries, we need to rely on local know how in order to ensure that their operations are in compliance with the regulation of every country where they operate.

For this reason, through our many years of experience in indirect taxation, we have established a network of trustworthy partners in those countries where our clients operate. We work in close collaboration with local tax advisors, accountants and lawyers, including Big 4 firms and members of renowned professional alliances.


VAT Systems’ partners are selected based on their proven track record in their field of expertise, their internal resources and their in-depth knowledge of the national taxation system.

 While VAT systems will rely on its partners for local expertise, we will remain your unique point of contact for all taxation issues abroad, thus maintaining a global view on your operations.

Our values

At VAT Systems we believe that success is based on strong professional values. Strong values and satisfied clients have allowed VAT Systems to enjoy, year after year, double-digit growth, while maintaining margins, improving the quality and broadening our range of services.

We work closely with tax authorities and we rely on a network of local partners, being experts in their individual domains. We work with IT tools specifically designed to support us in our work, control quality, measure performance and generate reporting for our clients.


We approach complex situations in a pragmatic manner in order to meet our clients’ expectations:

We offer to our clients a value one-stop-shop solution for all their international operations, providing them with security or savings.


This efficiency translates into a continuous growth. We are constantly improving our processes and expanding our knowhow by recruiting new talents to strengthen our team. An ever increasing number of clients revert to us for support in their international operations.  


We keep our customers fully informed at all times on the services we carry out and on the related costs is at the heart of our business.

✓ Transparency of fees: Our fees are based on the time spent to provide our services. Nevertheless, for the sake of forecasting, we have established fixed fees for main Compliance tasks and we apply success fees on “no cure no pay” basis for Tax recovery operations.

✓ Transparency of operations: Our online reporting is a tool that provides the data that our clients’ accounting departments need for their operations.

Client Satisfaction

Working in close cooperation with our clients, our goal is to service them to the best of our ability.

Every year over 90% of our customers choose to continue working with us the following year. Key Performance Indicators help us track our results in order to continuously improve our procedures.

VAT Systems France and Portugal are certified ISO 9001: 2015 for all their operations and VAT Systems France is qualified OPQCM.