Sebastian M. van Roundsburg

Sebastian M. van Roundsburg is a litigation associate in Glaser Weil’s San Diego office.  His practice focuses on complex commercial disputes, including breach of contract, privacy and cybersecurity, consumer class actions, unfair competition, defamation and other high-stakes business matters.

He has extensive industry knowledge from handling matters for clients in the insurance, financial services, healthcare, software and food and beverage sectors.

Sebastian’s notable experience includes his representation of:

• A digital bank in obtaining dismissal of a data breach class action at the pleading stage.*
• A leading mobile data broker in the defense of a claim brought by the Federal Trade Commission.*
• A global alcohol brand in obtaining summary judgment in a trademark action.*
• Various statewide and national healthcare providers in privacy and data breach class actions.*
• An A-list celebrity as the lead associate on a $100 million defamation suit.*
• An international fast food franchise in the defense of privacy-related claims.*
• A DevOps agency in a claim involving breach of contract, fraud and other business torts.*
• A national utility management company in the defense of a consumer class action.*

* Denotes prior firm experience

Member, Pro Bono Panel for the U.S. District Court, Southern District of California

Member, William B. Enright Inn of Court

Member, San Diego County Bar Association

Volunteer, San Diego Volunteer Lawyer Program’s Domestic Violence Program