Lysias Partners

What Lysias Partners does

Lysias Partners is a Paris-based boutique law firm founded in 2018 by Jean-Pierre Mignard, operating from 20 quai de la Mégisserie in the 1st arrondissement. The firm practices across four pillars: White Collar Crimes & Regulatory, International Litigation (including ICC, ICJ, ECHR, EUCJ, and ICSID matters), Media & Digital Law, and Public & Environmental Law. Its roster of three practicing partners — Mignard, Pierre-Emmanuel Blard, and Imrane Ghermi — is augmented by approximately nine consultant-academics who are Doctors and Professors of Law at institutions including Sciences Po Paris, Sorbonne, Toulouse, Montpellier, UPEC-Paris XII, and Yale Law School.

The firm monetizes through traditional professional-services fees billed on a per-engagement basis negotiated by case complexity and counsel seniority, with pricing not publicly disclosed. A second revenue stream comes from the Lysias Training Centre, which markets structured courses in digital law (covering AI regulation, blockchain, smart contracts, cybersecurity, drone law, GDPR), press law, and corporate compliance to enterprise clients and journalists. The firm also produces Cahiers Lysias working papers and authored books that reinforce thought leadership.

Lysias serves a heterogeneous client base spanning CAC 40-listed enterprises and regulated utilities (EDF, ENEDIS), public institutions (City of Paris), foreign sovereigns (Republics of Chile, Côte d'Ivoire, Guinea, Cameroon), and individuals in human-rights and asylum cases. International reach is delivered through the DIKAIOMA transnational lawyers group and OMONIA PARTNERS economic interest group rather than owned offices abroad. GTM is sales-led and relationship-driven, supported by earned media (Le Monde, BFM TV, France 24), bilingual web presence, and a LinkedIn/Twitter footprint — there is no proprietary technology platform underlying the practice.

Name

Lysias Partners

Legal name

Lysias Partners

Website

https://lysias-avocats.com

Company type

Private

Founded year

2018

Operating status

Operating

Headcount range

1–10 employees

Short description

Lysias Partners is a Paris-based boutique law firm founded in 2018, advising CAC 40 corporates, public institutions, and foreign governments on white-collar crime, international litigation, digital/media, and public/environmental law through a partner-led model backed by an academic-consultant bench.

Ownership category

akta.pro rank

Product category

Legal Services

NAICS

Offices of Lawyers (541110), Offices of Lawyers (54111)

SIC

Services-Legal Services (8111)

akta.pro primary industry

Litigation Support & Expert Witness Services (BPAHALAG)

akta.pro secondary industry

Legal & Governance Professional Development (EDAGANAK)

Keywords

• Legal advisory services
• White collar defense
• International litigation
• Digital media law
• Environmental public law

Headquarters

HQ city

Paris

HQ country

France

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Marketing or Sales, Others

Revenue model

1. Legal Advisory and Representation Services: Lysias Partners generates revenue through professional legal services fees, including advisory work and litigation representation for corporate clients, public institutions, and individuals, both domestically in France and internationally.

Go-to-market motion1 record

Distribution channels2 records

Marketing channels6 records

Core offering

Lysias Partners is a Paris-based law firm providing legal advisory and litigation representation across four practice areas: White Collar Crimes and Regulatory, International Litigation, Digital and Media Law, and Public and Environmental Law. The firm also operates the Lysias Training Centre, which delivers professional legal education courses in digital law and press law for corporate clients and journalists. Services are sold on a per-engagement basis to enterprises, CAC 40 companies, public institutions, and foreign governments.

Product overview

Lysias Partners is a Paris-based law firm offering comprehensive legal services through its core practice areas (white-collar crime/regulatory, international litigation, digital & media law, and public/environmental law) and a dedicated training division called the Lysias Training Centre. The Training Centre provides professional legal education in areas including digital law (covering AI, blockchain, cybersecurity, and data protection) and press law. The firm also publishes legal research through Cahiers Lysias publications and authored books addressing topics such as algorithmic governance (L'Empire des Données) and constitutional law.

Differentiator

Problem solved

Functional benefit

Brands

• Lysias Training Centre: Training centre chaired by Jean-Pierre Mignard providing legal training courses in digital law, media law, and various public and private law topics

Products and services

• White Collar Crimes and Regulatory Practice Legal advisory and representation in business criminal law, corporate criminal liability, compliance, ethics, RSE (corporate social responsibility), criminal procedure, and regulatory enforcement for companies and executives.

Named customers8 records

Segments4 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Partnerships

Three partnerships are on record, tiered core and minor.

• DIKAIOMA – Transnational Group of LawyerscoreStrategic or Co-development PartnerDIKAIOMA is a transnational group of lawyers in which Lysias Partners participates, enabling cross-border legal collaboration. Members include Panagiotis Christopoulos (Athens Bar) and Luca d'Ambrosio (Rome Bar), facilitating advisory services across multiple jurisdictions through a network of affiliated lawyers.
• OMONIA PARTNERS – Economic Interest GroupcoreStrategic or Co-development PartnerOMONIA PARTNERS is an economic interest group (GIE) operating in cooperation with Lysias Partners, structured as a formal collaborative entity among member law firms for joint operations and client service.
• SYGNA PARTNERSminorStrategic or Co-development PartnerLysias Partners cooperates with the law firm SYGNA PARTNERS as part of its OMONIA PARTNERS network, providing additional legal advisory capacity and potentially shared client referrals.

Scale indicators2 records

Recent moves6 records

Expansion highlights5 records

Direct peers

• August Debouzy: Major Paris-based firm renowned for media, digital/IP, public law, and regulatory practices. Directly comparable on the digital-and-media-law and public-law axes that anchor Lysias's practice mix.
• Bird & Bird: International firm with a strong Paris office focused on digital, technology, media, and communications law. Closely matches Lysias's Digital & Media Law practice area and technology-focused client demand.
• Gide Loyrette Nouel: Top-tier Paris-headquartered firm with deep international litigation, public law, and regulatory capabilities. Comparable on cross-border dispute resolution and public-law advisory to French and international clients.
• Bredin Prat: Leading Paris firm with one of France's strongest white-collar crime and regulatory compliance practices. Overlaps directly with Lysias's White Collar Crimes & Regulatory offering and CAC 40 client base.

Broad incumbents

• Linklaters: Magic Circle firm with a Paris office covering international disputes, public law, and regulatory mandates. Competes for cross-border mandates involving CAC 40 and sovereign clients.
• Hogan Lovells: Global Magic Circle firm with a substantial Paris public-law, regulatory, and international disputes practice. Competes for the same CAC 40 and public-sector mandates but with broader cross-practice coverage.
• Freshfields Bruckhaus Deringer: Magic Circle firm with significant Paris capabilities in international arbitration, white-collar, and regulatory matters. Overlaps with Lysias's international litigation and white-collar practices at greater scale.
• A&O Shearman: Global firm formed by Allen & Overy's merger with Shearman & Sterling, with a Paris office handling international litigation, white-collar, and regulatory work for French and multinational clients.

Emerging players

• Joffe & Associés: Paris boutique specializing in digital, tech, and IP law for innovative companies. Comparable as a similarly sized specialist focused on emerging-technology legal advisory in France.
• Flichi Grimaldi Avocats: Paris-based boutique focused on digital law, IP, and new-technology regulation. Smaller and more niche than Lysias but overlapping on the digital-and-media-law axis.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat3 records

Key risks6 records

Key highlights7 records

Customer concentration

• Xx.com/Lysias_avocats
• LinkedInlinkedin.com/company/lysias-partners

Revenue estimate

Valuation estimate

Number of profiles

Profiles12 records

Subsidiaries2 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Lysias Partners