100 Legal

Contracts, corporate and business law, private equity, fintech & DeFi, banking law, economic criminal law, commercial litigation, employment law, debt enforcement, real estate and administrative law

Founding Partner

Sébastien Collart has extensive experience in advising entrepreneurs and businesses of all sizes. He assists various individuals and companies, both Swiss and foreign, on national and international transactions in numerous fields of business (corporate, contracts, private equity, real estate). He read law at the University of Geneva and then worked as a legal counsel for the Geneva government, in the department in charge of economic affairs.

He joined Daniel Udry at 100 Rhône Avocats in November 2011 as an associate before becoming a partner in 2020. He is one of the founding partners of 100 Legal.

Sébastien Collart has developed a keen interest in fintech and focuses on the implementation of distributed ledger technology and blockchain in various fields of law and business.

French and English

-British-Swiss Chamber of Commerce

-Crypto Valley Association

-Centre for Finance, Technology and Entrepreneurship (CFTE)

-The Law Society of England and Wales

-Geneva Association of Business Law (AGDA)

-Geneva Bar Association

-Swiss Bar Association

-Swiss Private Equity & Corporate Finance Association (SECA)

He sits on the Board of a Swiss non-profit organization for heritage preservation through technology, active in various scientific, humanitarian and educational projects.

- Admission to the Swiss bar in 2008

- Qualified as a Solicitor (England & Wales) in 2018

Sébastien Collart co-authored the article « A Post-Brexit Guide to UK-Swiss Disputes » originally published in Law360.