Bonnard Lawson Avocats Notaires (ex-Thésée)

What Bonnard Lawson Avocats Notaires (ex-Thésée) does

Bonnard Lawson Avocats Notaires (formerly Thésée) is a Paris-based integrated law and notary practice operating as a société pluri-professionnelle d'exercice par actions simplifiée (SPE), with share capital of €1,000 and registered under RCS Paris 849 243 886. The firm holds dual regulated status — its lawyers are inscribed au Barreau de Paris and it is titular of a notarial office by arrêté of the garde des sceaux — governed by Articles 31-3 et seq. of Law 90-1258 (31 December 1990). The combined legal-notary model under one address is structurally rare in France and underpins the firm's value proposition. Located at 16 avenue Hoche, 75008 Paris, with a team of approximately eight (three associate lawyers, three associate notaries, one salaried notary, one jurist), the firm also operates as the Paris member of the Bonnard Lawson International Law Firm network, which spans offices in Geneva, Lausanne, and Rolle (Switzerland), Dubai (UAE), and correspondents in Shanghai and Hong Kong.

The firm serves Ultra High Net Worth private clients, entrepreneurs and business owners, and (to a lesser extent) institutional investors and financial establishments. Core practice areas include corporate law, international tax planning, trust and estate law (national and cross-border), real estate financing and transactions, art law, family law, and the more recent addition of crypto-asset transmission. Notarial services are delivered as regulated authentic acts (actes authentiques) per French fee structures, while advisory mandates are quote-based; the firm does not publicly disclose pricing. Revenue is generated through professional services fees (legal advisory) and per-transaction notarial fees.

The business model is direct professional advisory: UHNW and entrepreneur mandates are sourced primarily through referrals, the firm's website, LinkedIn presence, and partner networks, supplemented by recurring academic engagement (notably ESCP Business School) that functions as a thought-leadership and talent channel. There is no technology product or platform; the firm uses standard client portals (mondossiernotaire.fr / mondossiernotairepro.fr) and the Genapi online secure payment portal for regulated notary transactions. No external funding, private equity backing, or public ownership is disclosed, and ownership sits with the partner notaries and lawyers.

Name

Bonnard Lawson Avocats Notaires (ex-Thésée)

Legal name

Thésée, société pluri-professionnelle d'exercice par actions simplifiée

Website

https://bonnard-lawson.fr

Company type

Private

Operating status

Operating

Headcount range

1–10 employees

Short description

Bonnard Lawson Avocats Notaires is a Paris-based integrated law and notary boutique (former Thésée) serving Ultra High Net Worth individuals, entrepreneurs, and institutional investors with cross-border estate planning, international tax, real estate, and trust mandates through the Bonnard Lawson International Law Firm network.

Ownership category

akta.pro rank

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, Infrastructure

Revenue model

1. Legal advisory services: Legal advisory fees charged to entrepreneurs and private clients for corporate law, international tax planning, trust and estate law, and pre-contentious and contentious matters with tax and social security authorities. Revenue is generated through professional service engagements.
2. Notarial services: Authentic acts and notarial services including real estate transactions, estate transmission, family law instruments, and international private law matters. Notarial fees are regulated in France and typically charged per transaction (acte authentique).

Go-to-market motion1 record

Distribution channels1 record

Marketing channels3 records

Core offering

Bonnard Lawson Avocats Notaires delivers integrated legal advisory and notarial services for complex domestic and cross-border wealth matters. The firm combines the regulated professions of avocat and notaire under a single société pluri-professionnelle d'exercice, advising Ultra High Net Worth individuals, entrepreneurs, and institutional investors on corporate law, international tax planning, trust and estate law, real estate transactions and financing, art law, and family law, alongside the delivery of authentic notarial acts.

Product overview

Bonnard Lawson Avocats et Notaires operates as a single integrated offering combining legal advisory services and notary services within one unified structure. The Paris office provides French and international tax law advice, corporate law, estate planning, wealth structuring and transmission, real estate law, international private law, and art law services, alongside authentic notary acts. The firm leverages the synergy between lawyers and notaries to offer comprehensive, fluid, and secure client accompaniment throughout their wealth management journey.

Differentiator

Problem solved

Functional benefit

Products and services

• Bonnard Lawson Avocats et Notaires - Integrated Legal and Notary Services Integrated legal advisory and notarial services delivered from the Paris office, combining lawyer expertise (corporate law, international tax, estate planning, art law, crypto-asset transmission) with authentic notarial acts for comprehensive wealth management, international tax planning, and cross-border estate structuring for UHNW individuals, entrepreneurs, and institutional investors.

Segments3 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Partnerships

One partnership is on record.

• Bonnard Lawson International Law FirmcoreStrategic or Co-development PartnerBonnard Lawson Avocats Notaires is a member of Bonnard Lawson International Law Firm, an international legal network providing cross-border legal and tax services. The network includes offices in Paris, Geneva, Lausanne, Rolle, and Dubai, with correspondents in Shanghai and Hong Kong. Member firms collaborate on international client mandates requiring multi-jurisdictional expertise.

Scale indicators2 records

Recent moves7 records

Expansion highlights5 records

Direct peers

• Reinhart Marville Torre: Paris boutique with a dedicated private-client and tax practice serving family groups and entrepreneurs on wealth structuring and transmission — directly comparable French boutique competitor.
• Lacourte Raquin Tatar: Paris boutique specialising in tax and wealth management for private clients, family offices, and entrepreneurs — a comparable niche positioning in cross-border patrimonial advisory for UHNW individuals.
• August & Debouzy: Paris-based firm with a notable corporate, tax, and private-client practice advising business owners and UHNW families on structuring, restructuring, and wealth transmission — comparable on both entrepreneur and private-client mandates.
• Darrois Villey Maillot Brochier: Paris elite firm historically anchored on high-end tax, M&A, and litigation for major French families and groups — directly comparable for UHNW and entrepreneur-side advisory mandates.
• Bredin Prat: Paris-based elite firm with a deep corporate and tax practice advising major business owners and HNW families on structuring and transactions — competes for the same entrepreneur and family-office mandates as Bonnard Lawson.
• Gide Loyrette Nouel: Leading French elite law firm with a strong private-client and international tax practice serving UHNW individuals and entrepreneurs on cross-border wealth structuring — directly comparable target clientele and advisory scope to Bonnard Lawson.
• FTPA Avocats: French tax and wealth-management boutique advising private clients, entrepreneurs, and family groups on tax structuring and transmission — closely comparable boutique positioning and client segment.

Broad incumbents

• Dentons: World's largest global law firm with a Paris presence serving private clients and family businesses on international tax, estate, and real estate matters — broader portfolio but overlapping UHNW clientele.
• Baker McKenzie: Global law firm with a major Paris office advising UHNW individuals, families, and entrepreneurs on cross-border tax and estate matters — comparable cross-border capability but as part of a broad global platform.
• Norton Rose Fulbright: Global law firm with a significant Paris office and an established private-client / wealth-management practice — competes for cross-border UHNW mandates but as part of a much wider full-service portfolio.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat3 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/bonnard-lawson-avocats-notaires

Revenue estimate

Valuation estimate

Number of profiles

Profiles8 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 Bonnard Lawson Avocats Notaires (ex-Thésée)