Know-how beyond borders

LeitnerLeitner maintains close personal contacts with many renowned consulting firms around the world. These contacts, which have been tried and tested in many joint projects, allow us to work out the best possible solution for your cross-border issues. We attach particular importance to ensuring that these solutions are sustainable and reliable and take into account all tax and legal aspects of the various national legal frameworks.

In addition to these international contacts, LeitnerLeitner is also a member of the following prominent alliances:


OFFICES, Cooperations & Memberships

Cooperations & Memberships


ADP, the ADP logo and "ADP A more human rexource" are registered trademarks of ADP, LLC.

AHK Slowakei

Asociácia leasingových spoločností SR

Handelskammer Schweiz Slowakische Repbulik

Slovensko – rakúska obchodná komora


LeitnerLeitner is a member of Taxand, the world’s largest alliance of independent tax advisory firms. Taxand is represented in each country by only one leading tax advisory firm. Together, its members offer premium advice on international tax law issues. The 400 partners with more than 2,000 tax advisors in 50 countries stand for highly regarded, proven advice.

Taxand focuses exclusively on taxes. The members’ competencies are bundled in the following service lines: Compensation Tax, Financial Services, Indirect Tax, M&A Tax, Private Clients Services, Real Estate Tax, Tax Disputes, and TP & Business Restructuring.

Taxand has again been ranked Tier 1 Global Tax network in “Chambers & Partners” 2019.

For more information on our work with Taxand, please contact Gerald Gahleitner or Norbert Schrottmeyer.


LeitnerLeitner is a member of Praxity, a worldwide alliance of independent firms that provide professional auditing and consulting services – wherever you do business. If you would like to learn more about our alliance with Praxity, please contact Florian Huber.


LeitnerLaw Rechtsanwälte

LeitnerLeitner collaborates with leading law firms on legal questions in order to provide you with advice that has been cleared between accountants and lawyers. In Austria we co-operate with LeitnerLaw Rechtsanwälte. For further information on our collaboration, please contact Maria Schlagnitweit.

Tascheva & Partner

Our partner firm in Bulgaria is one of the most important law and tax advisory firms in Bulgaria today. For more information on this cooperation, please contact Clemens Nowotny.