Dr. Kai Westerwelle
Rechtsanwalt | Fachanwalt für Informationstechnologierecht (Certified lawyer for IT law) | Foreign Legal Consultant (California) (Foreign Legal Consultant (California))
Languages
- German
- English
- French
Social media
For more than 25 years, Dr. Kai Westerwelle has been advising US companies and high-growth start-ups, primarily in the tech sector, first in Germany and as of 2014 in Silicon Valley and San Francisco. His expertise focuses on international legal topics, particularly in the area of tech transactions, data privacy, and international expansion projects to continental Europe, the UK, and the Asia-Pacific region. Kai’s support ranges from initial assistance with cross-border growth plans to the complete coordination of the legal advice across multiple jurisdictions.
His further area of expertise is international privacy and data protection, both referring to strategic advice on privacy compliance as well as risk management and international incident response. On this, Kai supports companies of any size and all industries referring their international incident response strategies and provides one-stop coordination of the privacy teams in the affected countries.
Kai joined CMS as a partner in 2024. Prior to joining CMS, he was a partner at two major international law firms for more than 20 years in Germany and the US. He became an attorney in 1996 after his studies and legal training in Germany, Switzerland, Canada, and the US.
Kai is Chairman of the German-American Business Association (GABA), the West-Coast Representative of the German-American Lawyers’ Association (DAJV), and an active member of various other international legal and business associations. He holds further supervisory board seats, regularly speaks at international conferences, and lectures international privacy at Universities in Germany and the US.
