Our attitude is your security, and the basis of our partnership.

This is what HSP.law stands for.

To our clients, we are a legal counsel and partner.

Our experience of 25 years is expertly applied to any legal issue. At the same time, we are curious and open to new approaches. As advisers, solving tasks and problems is not only our mission but also our passion.

We loyally represent the interests of our clients, and maintain an overview even in complex situations.
As your first point of contact in difficult situations, we are always available and ready to take on responsibility. Our goal is the success and satisfaction of our clients.

Key Figures

Practice Areas

Years of experience




As your partners, we stand by you.

What drives us every day is our curiosity about complex issues, and the pleasure we take in communicating with our clients and our team.

Our history


Michael Hasberger and Helmut Seitz establish the law firm Hasberger Seitz & Partner Rechtsanwälte GmbH in Vienna’s first district. From the very beginning, the firm has focused on commercial law and civil court proceedings.


As pioneers in this field, our firm establishes an Eastern European desk. We focus on supporting Eastern European clients who make investments in Austria. Immigration and taking residency have always been a focal point.

Cooperation with PwC

HSP enters into close cooperation with PwC, and integrates PwC’s legal department into the firm. HSP moves to a new location in Vienna’s third district together with PwC.

New location

After terminating our cooperation with PwC because of the effects of certain American legislation (Sarbanes-Oxley Act), our firm moves to a new location in the first district in the heart of Vienna.

Public law

HSP grows and establishes a new department for public law, specialising in advising local authorities and real estate investors on questions of zoning and building law.

Financial crisis as an opportunity

Starting in the US, 2008 sees major turbulence on the financial and real estate markets. HSP uses the crisis as an opportunity, and focuses on providing advice on complex real estate transactions.

GGI network

In an increasingly globalised economy, it is essential to have a well-established international network. HSP joins the Geneva Group International, the largest world-wide network of independent consultants, as an active member.


Sustained success and steady growth mean that space is becoming too tight. HSP creates more room for new ideas, and expands the firm at its existing location. At the same time, the Due Diligence Team handling complex M&A and real estate transactions expands.

Banking & Finance Team

The ECB is responsible for uniform banking supervision in the Euro area. HSP expands the internal Banking & Finance Team, and advises credit and financial institutions in the areas of banking, capital markets and insurance law.

Compliance & AML

With the 4th Money Laundering Directive entering into force, the compliance requirements for banks have become considerably more stringent. HSP reacts and sets up a consultancy team for compliance and money laundering issues.

Data protection

Based on decisions by the highest courts, the European basic data protection regulation is a central challenge for all companies in Europe. HSP has been one of the leading experts in this field from the very beginning.

Legal-tech competence

Digitalisation and artificial intelligence influence all areas of economic life. HSP cooperates with Xpert Business Solutions GmbH and IURIO – Legal Tech Services GmbH to create customised solutions for our clients.


The law firm changes its brand to HSP.law. The founding partners Dr. Michael Hasberger and Helmut Seitz, who have been with the firm since 1997, will focus on their own projects from now on.