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Daniela Karollus-Bruner
Partner

Daniela Karollus-Bruner

Languages
  • German
  • English
  • Italian
  • French

Daniela Karollus-Bruner is a partner at CMS Reich-Rohrwig Hainz and leads the dispute resolution group. She is the co-head of the CMS International Arbitration Group and a member of the Board of the International Association of Defense Counsel (IADC).

Daniela has many years of experience with highly complex litigation and arbitration cases for clients from various industries, with a special focus on banking and financial services, automotive, construction, consumer products and insurance industries. She represents Austrian and international clients at courts and at arbitration courts with a focus on cases involving damages, contracts, product liability, corporate and competition law.

In addition, she is a member of our teams for corporate and commercial law. She advises clients on commercial matters such as contracts, general terms and conditions, warranties and damages including liability.

During and after law school in Vienna and Paris, she held assistant positions with the University of Vienna Law School (e.g. at the Department of Civil Law). Daniela Karollus-Bruner has over 25 years of experience as a lawyer.

In addition, she is a speaker at executive seminars as well as author and co-author of various expert articles.

Awards & Recognitions
01
  • Quote
    "We worked with Daniela Karollus-Bruner and her service was very strong."
    Chambers European 2025
  • Quote
    "Daniela Karollus-Bruner is the definition of a disputes lawyer. She is a fighter who has amazing tact and strategy."
    Chambers European 2025
  • Quote
    "Daniela Karollus-Bruner is a very entertaining speaker and an excellent lawyer. She leaves no stone unturned when representing a client."
    Chambers European 2025
  • Quote
    "Daniela Karollus-Bruner is an extremely intelligent lawyer."
    Chambers European 2025
  • Quote
    "It has always been a pleasure to work with Daniela Karollus-Bruner."
    Chambers European 2025
  • Quote
    „In litigation, it was a joy to see her cross-examine.“
    Client feedback, Chambers Global 2024
  • Quote
    „Kann im Stil hart sein.“ (Wettbewerber)
    JUVE, 2024
  • Quote
    ‘We work with Daniela Karollus-Bruner and Sonja Otenhajmer, their work is fast and diligent.’
    The Legal 500 EMEA, 2024
  • Quote
    "Daniela is excellent, she is a tough cookie."
    Chambers Europe, 2024
  • Quote
    "She has amazing negotiation skills."
    Chambers Europe, 2024

Memberships & Roles

  • Austrian Bar Association

Awards & Rankings

  • The German business newspaper Handelsblatt ranks Daniela Karollus-Bruner as one of the best lawyers in the fields of European law, conflict resolution and arbitration/dispute resolution/mediation (Best Lawyers Ranking 2020).

Education

  • 1990 - Mag. iur., Law, University of Vienna 
  • 1987 - Panthéon-Assas, Université de Paris II

Insights by Daniela

University of Pittsburgh Consortium: From clause to case, a panel discussion

26 Mar 2026

Human.Rights.Business | Episode 2

12 Feb 2026 2 min read

CMS International Disputes Digest – 2025 Winter Edition

15 Dec 2025 2 min read

Human.Rights.Business.

09 Dec 2025 1 min read
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