![Thierry Dassault](data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="%231b1b1b" class="bi bi-person-fill" viewBox="0 0 16 16"><path d="M3 14s-1 0-1-1 1-4 6-4 6 3 6 4-1 1-1 1zm5-6a3 3 0 1 0 0-6 3 3 0 0 0 0 6"/></svg>)
Thierry Dassault
Director/Board Member at
IMMOBILIÈRE DASSAULT SA
Net worth: 12 M $ as of 2026-02-27
Profile
Thierry Dassault (born 26 March 1957, in Neuilly-sur-Seine) is a French investor and billionaire entrepreneur. He is chairman of the supervisory board and deputy CEO of the Dassault Group. He is the son of Serge Dassault, and grandson of Marcel Dassault. His brothers are Olivier Dassault and Laurent Dassault, and his sister . Dassault is a bachelor and has no children.
Known holdings in public companies
| Company | Date | Number of shares | Valuation | Valuation date |
|---|---|---|---|---|
WALLIX GROUP SA 6.42% | 2025-02-27 | 433,170 ( 6.42% ) | 12 M $ | 2026-02-27 |
Thierry Dassault active positions
| Companies | Position | Start |
|---|---|---|
| WALLIX GROUP | Director/Board Member | 2011-10-20 |
| DASSAULT AVIATION | Director/Board Member | 2021-03-03 |
| IMMOBILIÈRE DASSAULT SA | Director/Board Member | 2018-05-02 |
Fondation Serge Dassault | Director/Board Member | - |
Fondation Pour La Recherche Sur Alzheimer | Director/Board Member | - |
Figaro Sante | Director/Board Member | - |
TwoOnpark SAS
 TwoOnpark SAS Information Technology ServicesTechnology Services Develops car parking application | Director/Board Member | - |
Gstaad Palace SA
 Gstaad Palace SA Hotels/Resorts/Cruise linesConsumer Services Operates hotels | Director/Board Member | - |
T.D.H. SC
 T.D.H. SC Financial ConglomeratesFinance Provides financial services | Founder | 2005-12-31 |
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Former positions of Thierry Dassault
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Experiences
Positions held
Active
Inactive
Listed companies
Private companies
Connections
52
1st degree connections
42
1st degree companies
Male
Female
Members of the board
Executives
Linked companies
| Private companies | 42 |
|---|---|
Veolia Environnement SA
 Veolia Environnement SA Water UtilitiesUtilities Provides water supply, wastewater treatment, waste management and district heating services | Utilities |
Immobilière Dassault SA
 Immobilière Dassault SA Real Estate Investment TrustsFinance Invests in office and retail properties | Finance |
Groupe Industriel Marcel Dassault SAS
 Groupe Industriel Marcel Dassault SAS Aerospace & DefenseElectronic Technology Operates as a holding company with interests in manufacturing aircraft and aircraft equipment | Electronic Technology |
Dassault Aviation SA
 Dassault Aviation SA Aerospace & DefenseElectronic Technology Manufactures military and executive aircrafts | Electronic Technology |
Gaumont SA
 Gaumont SA Movies/EntertainmentConsumer Services Produces and distributes cinematographic films and animation series | Consumer Services |
Dassault Multimedia SAS
 Dassault Multimedia SAS Financial ConglomeratesFinance Part of None, Dassault Multimedia SAS is a French company. | Finance |
AdUX SA
 AdUX SA Advertising/Marketing ServicesCommercial Services Provides online media and internet publishing services | Commercial Services |
SITAM Belgique SA
 SITAM Belgique SA Aerospace & DefenseElectronic Technology Supplies commercial aircraft assemblies and components | Electronic Technology |
Dassault Medias SA
 Dassault Medias SA Publishing: NewspapersConsumer Services Publishes newspapers and magazines | Consumer Services |
Net2one
 Net2one Internet Software/ServicesTechnology Services Provides an internet search engine services | Technology Services |
CD & Co. SA
 CD & Co. SA Electronics/Appliance StoresRetail Trade Distributes and retails multimedia products on-line | Retail Trade |
OpenTrust SA
 OpenTrust SA Information Technology ServicesTechnology Services Designs and develops solutions for the implementation of secure IT infrastructures | Technology Services |
Veolia Eau - Compagnie Générale des Eaux SCA
 Veolia Eau - Compagnie Générale des Eaux SCA TruckingTransportation Offers collects, recycles, processes and recovers hazardous waste | Transportation |
Royal Hotel Winter & Gstaad Palace AG | |
Société du Figaro SAS
 Société du Figaro SAS Publishing: NewspapersConsumer Services Publishes newspapers and online news articles | Consumer Services |
Société Du Journal Des Finances
 Société Du Journal Des Finances Miscellaneous Commercial ServicesCommercial Services Provides public relations services | Commercial Services |
Rond Point Immobilier SAS
 Rond Point Immobilier SAS Financial ConglomeratesFinance Functions as holding company | Finance |
Gisa SpA | |
Keynectis SA
 Keynectis SA Packaged SoftwareTechnology Services Provides digital communications protection software and services | Technology Services |
Gemplus
 Gemplus Packaged SoftwareTechnology Services Develops digital identity and data protection technology services | Technology Services |
Fondation du Rein | |
Particulier et Finances Editions SA
 Particulier et Finances Editions SA Publishing: Books/MagazinesConsumer Services Publishes magazines and periodicals | Consumer Services |
Halys SAS | |
Electronique Serge Dassault /Brazil/ | |
Infogames | |
T.D.H. SC
T.D.H. SC Financial ConglomeratesFinance Provides financial services | Finance |
Claude Delon Productions | |
YouScribe SAS
 YouScribe SAS Internet Software/ServicesTechnology Services Operates a community platform for sharing and selling digital publications | Technology Services |
Fondation Serge Dassault | |
Figaro Sante | |
Groupe Figaro SASU
 Groupe Figaro SASU Commercial Printing/FormsCommercial Services Operates as a multimedia publishing company | Commercial Services |
Wallix Group SA
 Wallix Group SA Packaged SoftwareTechnology Services Develops and markets software | Technology Services |
Bluwan SA | |
Artcurial SAS
 Artcurial SAS Specialty StoresRetail Trade Provides auction services | Retail Trade |
Fondation Pour La Recherche Sur Alzheimer | |
TwoOnpark SAS
TwoOnpark SAS Information Technology ServicesTechnology Services Develops car parking application | Technology Services |
TCBD & Fils SC
 TCBD & Fils SC Financial ConglomeratesFinance Provides investment services | Finance |
Goya SCI
 Goya SCI Real Estate DevelopmentFinance Leases real estate properties | Finance |
Falke SC
 Falke SC Apparel/FootwearConsumer Non-Durables Manufactures and supplies fashion accessories | Consumer Non-Durables |
Gstaad Palace SA
Gstaad Palace SA Hotels/Resorts/Cruise linesConsumer Services Operates hotels | Consumer Services |
Dassault Immobilier Canada, Inc. | |
Alzheimer Research Foundation of B C
 Alzheimer Research Foundation of B C Miscellaneous Commercial ServicesCommercial Services The Alzheimer Research Foundation of B C, also known as CLEAR Foundation, is a Canadian non-profit organization that focuses on eradicating all forms of dementia, including Alzheimer's disease. The company achieves this by funding research projects that aim to find a cure for the disease. The foundation directs 100% of the funds raised towards scientific research into the cause, prevention, and treatment of Alzheimer's and other dementias. The company has contributed to the collective understanding of dementia through their funded research projects. The foundation is dedicated to supporting research into Alzheimer's, which is the 8th leading cause of death in Canada, with over 6,000 Canadians dying from the disease every year. The company is based in Vancouver, Canada. | Commercial Services |
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