parallax background

Meet our


Our team

We value quality and professionalism, so each of our clients is handled by an assigned advisor who has expert knowledge of a company’s individual needs.

Our team is comprised of over 130 specialists who apply their knowledge and experience with dedication and passion.

Duni EFF

in numbers:


VAT registration in EU member states or countries outside of EU?
Trying to navigate the legal maze of local regulations?
Need an experienced accountant with a partnership approach?

Get to know our team better!

Krister Gullström

General Manager

+48 61 6560711

Ewa Polakowska

Sustainability Accounting Manager

+48 61 6560722

Anna Zadorożna

Marketing & Office Manager

+48 61 6560714

Kamil Rzezak

Tax Manager

+48 61 6560743

Aleksandra Ogińska-Nowak

Sales & Business Development Department Manager

+48 61 6560731

Łukasz Gauza

Team Leader, Accounting

+48 61 6560774

Natalia Lewandowska

Area Chief Accountant

+48 61 6560775

Bartłomiej Sosnowski

Business Development Manager

61 6560768

Trusted by:

Clients about EFF

  • We are happy to recommend EFF company thanks to our successful cooperation so far. High quality of performed services, high availability and a wide scope of their offer are of a great value. Their trustworthiness is based on professional business service and efficient communication with a client.
    Agnieszka Strycharz
    Chief Accountant, Monolith Group
  • We have the pleasure to work with Duni EFF within VAT Compliance services, which we can honestly recommend for any company seeking a professional support in tax related problems or similar. We can always count on their reliable advice and prompt answers to all of our questions. Duni EFF experts’ big commitment and individual approach to a client cannot go unnoticed. Their high competence and vast professional knowledge ensure all our needs are met and it facilitates efficient cooperation.
    Małgorzata Łysio
    Administration Specialist,
  • Across the years of working with Duni EFF, we developed a fantastic professional relationship. Their services to us included AR and AP and I have to say, nothing was ever too much or too little for them to help us with. They were very efficient and knowledgeable, you could say I learned a thing or two from them! It was a pleasure to work with them.
    Sophie Thompson
    Payroll Specialist, Cloetta UK
  • Duni EFF are tax professionals in the European Union. In cooperation with them, I especially appreciate the individual approach to each case. In international sales, there are often non-standard situations, from which they always find a way out. Their experts have extensive knowledge and provide it in a very accessible way. Duni EFF is a proven, reliable partner in business.
    Miłosz Wójcik
    Chief Product Officer Nethansa
  • We at Euroflorist are very pleased with EFF's high competence and ability to adapt to our changing needs.
    Per Gränse
    CEO, Euroflorist
  • During our 5-years of cooperation with EFF we have significantly reduced operating costs and improved quality and transparency of our processes. Very positive and somewhat unexpected for us is how fast and smooth implementations have been.
    Hans Petterson
    Finance Director
  • I would strongly recommend the services of EFF. We have transferred a large part of our AP processes to EFF. The transfer was very efficient and unbureaucratic. The employees of EFF are very ambitious, focused and it is a pleasure to work with them. Thus we were able to increase the reliability and quality of our AP with the same number of employees. Through the competence and experience of EFF, at a good value for money, we can concentrate better on our main business.
    Jorg Schulz
    Sales Director
Contact us