Atty. Patrick Sommer

Atty. Patrick Sommer

Partner Dr Patrick Sommer is Co-Head of the CMS Competition & EU Group. In this position, he jointly leads an international team of more than 170 competition lawyers.

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Antitrust & Competition Law & More Attorney

Profile Summary

About Patrick Sommer at a Glance

Patrick Sommer is a business attorney, practicing at CMS von Erlach Partners Ltd. Admitted to practice in Switzerland, Zurich. Recognitions include Best Lawyers in America — Antitrust/Competition Law (2026) and Best Lawyers in America — Corporate Law (2026). Serves clients in Zurich and the surrounding metropolitan area.

Verified attorney profile · Updated October 2026

About Patrick Sommer

  • Partner Dr Patrick Sommer is Co-Head of the CMS Competition & EU Group
  • In this position, he jointly leads an international team of more than 170 competition lawyers
  • Patrick Sommer focuses on competition law, corporate law and M&A
  • Patrick Sommer has graduated from the University of St.Gallen in 1987 and was admitted to the bar in 1989
  • He has written his doctoral thesis on the relationship of Switzerland to the European Union and completed postgraduate studies at the Collège d’Europe in Brugues with the H.E.E. diploma
  • He then worked for seven years in the legal department of a Swiss multinational group where he has been promoted to the offices of General Counsel and Secretary of the Board of Directors
  • In 2000 Patrick Sommer joined our firm and is a partner since 2002

Practice Areas Explained

Patrick Sommer's Areas of Legal Practice

Each practice area below reflects the types of cases Patrick Sommer handles, with a practical overview of what that area of law involves and how it may apply to your situation in Zurich.

Business & Corporate Law in Zurich

Business attorneys advise founders and growing companies on entity formation, contracts, financing, M&A, and dispute resolution.

Patrick Sommer is one of 497,491 business attorneys indexed nationally. Browse business attorneys →

Frequently Asked

Common Questions About Patrick Sommer

Where is Patrick Sommer's law office located?
Patrick Sommer's law practice is located in Zurich. The firm is CMS von Erlach Partners Ltd. You can contact the office directly through this profile page.
What practice areas does Patrick Sommer handle?
Patrick Sommer focuses on business. Each practice area listed reflects experience handling cases of that type in their licensed jurisdictions.
How can I contact Patrick Sommer for a consultation?
You can contact Patrick Sommer directly through this profile page. Click "Ask the Attorney" to submit a question, or "Schedule a Consultation" to book a meeting. Most claimed-profile attorneys respond within one business day.
What awards or recognition has Patrick Sommer received?
Patrick Sommer's notable recognition includes: Best Lawyers in America — Antitrust/Competition Law; Best Lawyers in America — Corporate Law.

Professional Profile

Why Clients in Zurich Choose Patrick Sommer

Selecting an attorney is one of the most consequential decisions you can make when a legal matter arises. Below are the core qualities that distinguish Patrick Sommer's practice in the field of business.

Focused Business Practice

Concentrating on business means Patrick Sommer's knowledge of relevant statutes, case law, and procedural nuances stays current — unlike generalist practices that spread attention across unrelated fields.

Local Presence in Zurich

A Zurich-based practice means Patrick Sommer attends hearings in the same courthouses, knows the local clerks, and understands the unwritten scheduling norms that affect every case filed here.

Case Types

Common Legal Issues Patrick Sommer Handles in Zurich

Below is a representative sample of the types of matters Patrick Sommer has experience with. If your situation involves one of these case categories, this attorney may be well positioned to help you understand your options.

Business formation and structure
Business
Contract drafting and review
Business
Partnership disputes
Business
Merger and acquisition support
Business

This list is illustrative, not exhaustive. Contact Patrick Sommer directly to discuss the specifics of your situation.

Search Reference

How People Find Patrick Sommer Online

Prospective clients searching for legal help in Zurich commonly use a combination of the attorney's name and their specific legal need. The following search terms frequently lead people to this profile and to attorneys like Patrick Sommer.

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If any of the above matches what you searched for, you've found the right profile. Use the contact options at the top of this page to get in touch with Patrick Sommer directly.

Patrick Sommer's Practice Areas & Specializations

Awards & Professional Honors

Best Lawyers in America — Antitrust/Competition Law
- 2026
Best Lawyers in America — Corporate Law
- 2026

Bar Admissions & Licensed Jurisdictions

Switzerland, Zurich

Client Reviews & Ratings — Patrick Sommer

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