Jank Weiler Operenyi attorneys at law provide high-end legal service to national and international corporations, institutions and private individuals. As business lawyers we think like entrepreneurs and customize solutions to fit our clients‘ specific demand. 


We advise corporations in all areas of the corporate and business law matters. Our team has long-term experience and broad expertise in advising both national and cross-border M&A-, private equity-, venture capital and joint venture transactions within different industrial sectors. We cover the structuring of transaction processes, the preparation and execution of due-diligence exercises as well as the drafting and negotiation of the respective transaction documentation.

Contact Corporate: Maximilian Weiler
Contact M&A: Alexander Operenyi

We advise financial institutions and insurers both within the applicable regulatory framework as well as in connection with general banking and insurance contract law matters. One of our core competences is the provision of legal as well as strategical advice with respect to national and cross-border (project) financing and financial restructuring.

Contact: Andreas Jank
Contact Banking Regulatory: Maurizia Anderle-Hauke

We assist our national and international clients in all areas of real estate law on an ongoing basis, especially regarding the sale and acquisition, financing (including loans and leasing), restructuring, and project development of real estate and complex national and international real estate projects. We further have extensive experience in the field of public real estate law, especially construction law, operating facility law, and labour protection law.

A further core area of our representation is lease law and condominium ownership law, especially relating to shopping centres, office buildings, construction development projects, and social housing projects.

Contact: Gabriele Etzl

We advise national and international enterprises in all fields of individual and collective employment law as well as represent our clients towards public authorities and in courts of law. We assist our clients in all legal matters concerning individual employment law, from the establishment to the termination of employment relationships. Our emphasis in this field lies on the preparation of complex employment and management contracts as well as on the legal consultation relating to restructuring measures. In the field of collective employment law, we support our clients particularly by drafting works council agreements and collective bargaining agreements.

We work closely together with Deloitte tax advisors and auditors in the areas of social security and income tax law. In addition, for international matters we can liaise with local attorneys of Deloitte Legal in more than 75 countries worldwide, to provide our clients with optimized solutions, both globally and regionally.

Contact: Stefan Zischka

We advise on all fields of intellectual and industrial property rights, information technologies, unfair competition law and data protection law. Developing and optimizing adequate IP strategies, filing, managing and licensing of intellectual property rights, executing IP related due-diligence exercises as well as preparation and examination of IT-policies, end user agreements and IT-contracts and support for implementation of hard- and software solutions belong to our core competences.

We have long-term experience and broad expertise in advising on the compliance of marketing campaigns and sales activities with unfair competition provisions. Our main areas of expertise also include the development and examination of data protection strategies, data protection policies and processor agreements as well as supporting the implementation of data related processes, data transmissions, data protection audits and data breaches.

Contact: Sascha Jung

We advise national and international enterprises in all fields of Austrian and European antitrust law. Our legal services range from conducting national, multinational and European merger control proceedings to representation in antitrust proceedings and advice on distribution antitrust law and joint venture projects. With our multi-disciplinary approach, we also cover – together with the experts from Deloitte – economic and forensic aspects of complex antitrust matters.

For international matters we can liaise with local attorneys of Deloitte Legal in more than 75 countries worldwide. A special focus of our legal practice is the development, implementation and review of compliance structures. The counseling scope ranges from the preparation of manuals and guidelines and staff trainings to the implementation of a comprehensive and effective Compliance Management System (CMS) as well as antitrust compliance systems.

Contact: Bernhard Köck, Sascha Jung

We advise and support national and international family offices, foundations and high net worth individuals in all areas of wealth and private asset management, in particular with respect to the structuring and execution of strategic investments.

Our flexible and personal approach and the close cooperation with the experts of Deloitte and the Deloitte Legal Network provides our clients the benefit of a one-stop-shop.

Contact: Maximilian Weiler

Representation of companies in national and international disputes (civil litigation, arbitration proceedings). The proceedings we handle relate to a wide range of areas of commercial law (e.g. banking contract law, tort and warranty law, corporate law).

Contact: Bernhard Köck

We advise on all fields of criminal law relating to economic and fiscal offences as well as on corruption and represent in criminal proceedings before authorities and courts. Our advice includes the prevention and risk analysis (compliance) as well as reparation of potential offences. We defend individuals and companies in white collar crime cases and criminal fiscal offences as well as we represent them before the Supreme Courts.

In addition, we support companies in relation to internal investigations as well as investigations by law enforcement authorities and we also represent companies that have been damaged by white-collar crime. Criminal law is closely connected with tax, company, accounting, and administrative law. Our services include the best possible legal and tax-related solutions customized for your needs – coordinated between our experienced attorneys and the tax advisors and financial auditors of Deloitte.

We represent creditors in enforcing their claims in insolvency proceedings. As representatives of the debtor, we develop and assist in the implementation of strategies for corporate restructuring.

Contact: Bernhard Köck, Andreas Jank

Miriam Nehajova heads the new JWO (Deloitte Legal) office in Graz. Team Graz advises Austrian and international companies in all areas of corporate and commercial law. The team also has many years of experience in advising on national and cross-border M&A, private equity and venture capital transactions in various business and industry sectors. The team in Graz additionally advises clients in all areas of real estate law, in particular on acquisitions and sales, financing (loans and leasing), restructuring as well as project development of real estate and complex national and international real estate projects. Miriam Nehajova is fluent in German, English, Slovak and Czech.

Contact Corporate, M&A, Real Estate: Miriam Nehajova

Your matters are our business
Jank Weiler Operenyi attorneys at law are a team of young professionals with long advising and transaction experience within Austrian and international first-tier law firms.

Developing together
The essence of our services is the flexible and personal commitment of our team and the will to develop and economically optimize solutions together with our clients.

Creating solutions, not problems
In addition to advancing our clients‘ interests in court and before public authorities, our domestic and cross-border services include strategic legal planning, minute advice, contract design and the execution of corporate projects and transactions, as well as wealth succession and asset management. Due to our close cooperation with the experts of Deloitte and the Deloitte Legal Network we offer our clients the benefit of a one-stop-shop advice.


Office Management and Legal Support

News & Rankings

Eröffnung Büroräumlichkeiten (Die Presse, 01/2023)
Immobilien Magazin – Die besten Anwälte der Branche 2022 (Immobilien Magazin, 04/2022)
Yvonne Gutsohn verstärkt als Rechtsanwältin das Corporate/M&A Team (TREND 1/22)
Frauenförderung bei JWO (Jänner 2022)
Yvonne Gutsohn verstärkt das Corporate/M&A Team bei JWO (Rechtspanorama 12/21)
JWO wächst kontinuierlich – Miriam Nehajova (Rechtspanorama 10/21)
Branchen-News / Deal der Woche (Rechtspanorama 9/21)
Deloitte Legal berät bei Austrian Airlines AG bei neuem Gutscheinmodell (Wirtschaftsanwälte 9/21)
Branchennews: Gerald Hendler verstärkt uns nun als Rechtsanwalt (Die Presse 5/21)
Immobilien Magazin – Die besten Anwälte der Branche (Immobilien Magazin 4/21)
Willkommen beim “Praxistalk Arbeitsrecht” (RECHTaktuell 2021/02)
Deloitte Legal begleitet Krüger Gruppe bei Übernahme von Wassersprudler-Hersteller SODAPOP
Branchennews: Ehrentitel für Sascha Jung (Die Presse 3/21)
Deloitte Legal verstärkt sich / Drei neue Rechtsanwälte (Immobilien Magazin 3/21, Die Presse 3/21)
Erfolgreiche Vertretung Spiegel/Süddeutsche iS Ibiza-Video (JUVE 2/21)
M&A-Beratung Waldviertler Sparkasse Verkauf CZ Filialen (Die Presse 1/21)
Dr. Andreas Jank unter den 50 besten Anwälten der Finanzbranche (Der Börsianer, 10/20)
Maurizia Anderle-Hauke baut den Bereich Banking Regulatory aus (Wirtschaftsanwälte 6/2020)
Neue Rechtsanwälte Sarah Koller, Andreas Bonelli (TREND, 10/20)
Deloitte Legal und Lumsden and Parnters berät Magenta Telekom und die Stadt Wien (Anwalt aktuell, 1/20)
Beratung Kooperation Magenta – Stadt Wien (Die Presse, 1/20)
Beratung bei Übernahme von ELL (JUVE, 01/20)
Zitatrecht sticht Urheberrecht (JUVE, 11/19)
Teamverstärkung Real Estate (Die Presse,… 10,11/19)
Beratung bei Kuppitsch-Übernahme (Börse Express,… 10/19)

Beratung Rondo Ganahl bei ROU Joint Venture (CEE,… 7,8/19)
Beratung Transaktion Freizeitpark (Die Presse, 4/19)
M&A Mandat: Verkauf Familypark (JUVE, 3/19)
Beratung T-Mobile UPC Integration (JUVE, 2/19)
T-Mobile-UPC Post Merger Integration (Die Presse, 2/19)
Beratung Finanzierung Bürokomplex-Transaktion (JUVE, 1/19)
Teamverstärkung Banking & Finance (JUVE, 10/18)
M&A Mandat: Einstieg strat. Partner Atmosa (Wr. Zeitung, 3/18)
Finanzierungsmandat: Investor-Einstieg Wolford (JUVE, 3/18)
JWO erweitert Beratungsspektrum (JUVE, 11/2017)
JWO auf starkem Wachstumskurs (Trend, Die Presse 11/17)
Beratungsmandat Air Berlin (JUVE, 9/2017)
JWO tritt globalem Anwaltsnetzwerk Deloitte Legal bei
Carbones erwirbt AMCI-DCM (Die Presse, 7/17)
M&A-Mandat: Air Berlin verkauft Fly Niki (JUVE, 1/2017)
M&A-Mandat: Kellogg erwirbt Vita+ (Die Presse, JUVE,… 9/16)
Interview Studienvertretung Jus (Juristl, WS 2015/16)
Beratung Generalvergleich Anlegerverfahren (Format,…11/15)
Beratung Strukturierung Konzernfinanzierung (Die Presse, 3/15)
M&A-Mandat: Automic kauft Levatis (JUVE, 11/14)
Partner-Einstieg Operenyi (JUVE, Die Presse, 02/03, 2014)
Beratungsmandat Refinanzierung BENE AG (Die Presse,… 2/2014)
Beratungsmandat Refinanzierung (Die Presse, Format, 11/2013)
Spin-Offs am Anwaltsmarkt (JUVE, 4/2013)
Teamverstärkung (Format, Wirtschaftsanwälte.at, 10/2012)
Beratungsmandat Strukturierung Private Placement (Format, 7/12)
Beratungsmandat Restrukturierung Konzernf. (Die Presse, 9/11)
Richtig selbständig machen (Format, 7/2011)


Developing together.
Precision and flexible personal commitment characterize our work, the efficient and tailor-made advice we provide to our clients. We are always looking for exceptional individuals to join our team.

We are looking for:
– Attorneys
– Associates
– Assistants
– Paralegals (students)

Please direct your application to Jank Weiler Operenyi attorneys at law: office@jankweiler.at


Jank Weiler Operenyi Rechtsanwälte GmbH
Attorneys at law
Hohenstaufengasse 9
A-1010 Wien

Tel +43 1 513 09 13
Fax +43 1 513 09 13 – 13

Public transport
U2 Schottentor
U3 Herrengasse
U4 Schottenring

Closest parking facilities
Parkgarage Freyung/Schottengasse
Garage am Hof
Garage Hilton Schottenring
Parkhaus Concordiaplatz