Alexander Willemsen
About Alexander Willemsen
Alexander Willemsen is a lawyer based in Cologne, DE and has been recognized in The Best Lawyers in Germany™ since 2020. Alexander Willemsen is recognized in the following practice area:
- Cologne, Germany
- Labor and Employment Law
Current Firm: Oppenhoff & Partner Rechtsanwälte Steuerberater mbB
Location: Cologne, DE
Nearby Lawyers
Marcus Nierkens is a top attorney recognized by Best Lawyers in the practice area(s) of Restructuring and Insolvency Law. Marcus, who practices law in Duisburg, Germany, has been recognized since 2021. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Marcus is held by other top lawyers in the same geographic and legal practice area.
Thomas Christner is a top attorney recognized by Best Lawyers in the practice area(s) of Public Law. Thomas, who practices law in Cologne, Germany, has been recognized since 2021. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Thomas is held by other top lawyers in the same geographic and legal practice area.
Dr. Christian Sandweg joined the firm of VOSSIUS in 2011 and was admitted to practice as a German Patent Attorney (Patentanwalt) and European Patent Attorney in 2015. His training in IP included stages at the German Patent Office, the Federal German Patent Court and the Lower District Court Mannheim. In 2016, he became a partner in the firm. Dr. Sandweg studied physics at the Technical University of Munich and the University of Kaiserslautern, specializing in solid state physics and in partic...
Kristina Klaaßen-Kaiser is a top attorney recognized by Best Lawyers in the practice area(s) of Corporate Law and Mergers and Acquisitions Law. Kristina, who practices law in Düsseldorf, Germany, has been recognized since 2019. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Kristina is held by other top lawyers in the same geographic and legal practice area.
Jan Schellenberger is a top attorney recognized by Best Lawyers in the practice area(s) of Real Estate Law. Jan, who practices law in Cologne, Germany, has been recognized since 2021. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Jan is held by other top lawyers in the same geographic and legal practice area.
Maximilian L. Reidt is a top attorney recognized by Best Lawyers in the practice area(s) of Litigation. Maximilian L., who practices law in Düsseldorf, Germany, has been recognized since 2025. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Maximilian L. is held by other top lawyers in the same geographic and legal practice area.
Sebastian von Lossow LL.M. is a lawyer and partner at Friedrich Graf von Westphalen & Partner. He has been working in the corporate law and M&A practice of Friedrich Graf von Westphalen’s Dusseldorf office since 2025. Sebastian von Lossow is a specialist in M&A, joint ventures and real estate transactions. His clients include entrepreneurs, family offices and mid-size companies (industrials, engineering as well as software-as-a-service) and real estate managers and investors...
Dominik Eickemeier is a top attorney recognized by Best Lawyers in the practice area(s) of Intellectual Property Law. Dominik, who practices law in Cologne, Germany, has been recognized since 2021. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Dominik is held by other top lawyers in the same geographic and legal practice area.
Dipl.-Kfm. Dr. iur. Maximilian Koch is the Managing Director and Founder of KOCH Rechtsanwaltsgesellschaft mbH in Dusseldorf, Germany. He studied economics at the University of Hagen (Diplom-Kaufmann) and law at the University of Osnabruck (1st legal state exam with honors, ranking among the top 5% of graduates), in addition to earning his Dr. iur. "summa cum laude". After completing his legal clerkship in Lower Saxony, he excelled in the 2nd state law examination, achieving a high distinctio...
Explore and Learn
How to Sue for Defamation: Costs, Process and What to Expect
by Bryan Driscoll
Learn the legal standards, costs and steps involved when you sue for defamation, including the difference between libel and slander.
2026 Best Lawyers Awards in Canada: Marking 20 Years of Excellence
by Jamilla Tabbara
Honoring Canada’s most respected lawyers and spotlighting the next generation shaping the future of law.
The Family Law Loophole That Lets Sex Offenders Parent Kids
by Bryan Driscoll
Is the state's surrogacy framework putting children at risk?
Best Lawyers 2026: Discover the Honorees in Brazil, Mexico, Portugal, South Africa and Spain
by Jamilla Tabbara
A growing international network of recognized legal professionals.
Unenforceable HOA Rules: What Homeowners Can Do About Illegal HOA Actions
by Bryan Driscoll
Not every HOA rule is legal. Learn how to recognize and fight unenforceable HOA rules that overstep the law.
Holiday Pay Explained: Federal Rules and Employer Policies
by Bryan Driscoll
Understand how paid holidays work, when employers must follow their policies and when legal guidance may be necessary.
Reddit’s Lawsuit Could Change How Much AI Knows About You
by Justin Smulison
Big AI is battling for its future—your data’s at stake.
US Tariff Uncertainty Throws Canada Into Legal Purgatory
by Bryan Driscoll
The message is clear: There is no returning to pre-2025 normalcy.
The 2026 Best Lawyers Awards in Chile, Colombia and Puerto Rico
by Jamilla Tabbara
The region’s most highly regarded lawyers.