About

Boutique firm for regulated markets

Whitepeak Law is a Paris boutique law firm advising on corporate, regulatory and disputes matters where judgment, speed and technical precision are critical.

The firm.

Whitepeak Law operates where law meets regulated markets. We advise on structuring, licensing, compliance, litigation and cross-border operations across financial services, crypto-assets, artificial intelligence and online gaming.

Our practice is deliberately concentrated. We work with a limited number of clients on matters that require senior attention, absolute discretion and deep regulatory fluency.

Whitepeak Law has also developed an internal RegTech platform, Whitepeak Lab, used to industrialize regulatory delivery on licensing matters.

The founder.

Sibylle Diallo-Leblanc, founding partner of Whitepeak Law

Sibylle Diallo-Leblanc

Founder, Whitepeak Law

Sibylle Diallo-Leblanc is a member of the Paris Bar and the founding partner of Whitepeak Law. Her practice focuses on regulated markets, strategic disputes, and the legal structuring of digital finance and artificial intelligence.

Before founding Whitepeak Law, she was a partner for six years at Beaubourg Avocats, where she led regulatory and litigation matters for French and international clients. She trained at leading international firms, including White & Case and Allen & Overy, with early-career exposure to capital markets, international arbitration and cross-border transactions.

She holds an LL.M from UCLA School of Law, an Executive Certificate in Artificial Intelligence from MIT Sloan School of Management, and a Master's in Business and Tax Law from Paris 1 Panthéon-Sorbonne, in partnership with HEC. She has also lectured on European policies at Sorbonne Paris Nord.

Credentials

Firms

Beaubourg Avocats

Partner, Regulatory and Litigation

2020 to 2026

Allen & Overy

International Capital Markets

2016

White & Case

Capital Markets

2016

DLA Piper

Business Litigation

2018

Education

UCLA School of Law

LL.M, Media, Technology and Entertainment

2018 to 2019

MIT Sloan School of Management

Executive Certificate, AI for Business Strategy

2021

Paris 1 Panthéon-Sorbonne

M2 Business and Tax Law, in partnership with HEC

2015 to 2016

Panthéon-Assas University

CRFPA, Business Law

2015

Paris Bar School (EFB)

Qualified Attorney-at-law

2017 to 2018

How we work.

Focused

We select matters carefully. Each engagement receives direct, senior attention from the founding attorney.

Confidential

We operate with absolute discretion on sensitive files, including regulatory enforcement, crisis matters and shareholder disputes.

Rigorous

We combine deep regulatory expertise with the operational rigor expected from top-tier international practice.

Discuss a matter in confidence.

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