![Klaas de Boer](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>)
Klaas de Boer
Chairman at
XEROS TECHNOLOGY GROUP PLC
Net worth: 279 823 $ as of 2026-05-30
Profile
Klaas de Boer is currently Chairman at General Fusion, Inc. since 2020, Chairman at Xeros Technology Group Plc since 2020, Non-Executive Director at CelLBxHealth Plc starting in 2026, Independent Director at SmartKem, Inc. since 2021, and Director at SmartKem Ltd. since 2017.
Former roles include Vice Chairman at Heliocentris Fuel Cell Solutions GmbH, Chairman at Verinos Pharmaceuticals GmbH, Vice Chairman-Supervisory Board at Heliocentris Energy Solutions AG from 2015 to 2016, Director at OptiNose, Inc., Managing Director at Entrepreneurs Fund Management Services, Non-Executive Director at Prosonix Ltd., Director at 20, Director-Supervisory Board at ProtAffin Biotechnologie AG from 2009 to 2014, Director at Optinose AS, Director at inge GmbH, Director at n-Tec AS, Director at Technolas Perfect Vision GmbH, CIO & Marketing Director at Preferred Global Health, Inc., Director at The New Motion BV, Director at Oomph Wellness Ltd., Director at D3O Holdings Ltd., Non-Executive Director at Lifeline Scientific, Inc. from 2008 to 2016, Business Development Manager at Vanenburg Group BV, Member-Supervisory Board at vasopharm GmbH, Managing Partner at Entrepreneurs Fund Management LLP from 2006 to 2021, and Managing Partner at The Makers BV (Netherlands).
Education includes an MBA from INSEAD in 1993 and graduation from Delft University of Technology in 1990.
Known holdings in public companies
| Company | Date | Number of shares | Valuation | Valuation date |
|---|---|---|---|---|
| 2026-03-30 | 12,811,904 ( 1.49% ) | 276 353 $ | 2026-05-30 | |
SMARTKEM, INC. 0.05% | 2026-04-30 | 11,530 ( 0.05% ) | 3 471 $ | 2026-05-30 |
Klaas de Boer active positions
| Companies | Position | Start |
|---|---|---|
| XEROS TECHNOLOGY GROUP PLC | Chairman | 2020-01-12 |
| SMARTKEM, INC. | Director/Board Member | 2021-02-22 |
| CELLBXHEALTH PLC | Director/Board Member | 2026-01-11 |
SmartKem Ltd.
 SmartKem Ltd. Industrial SpecialtiesProcess Industries Develops and markets printable electronics and semiconductors | Director/Board Member | 2017-12-12 |
General Fusion, Inc.
 General Fusion, Inc. Engineering & ConstructionIndustrial Services Engages in development, construction and operation of large-scale magnetized target fusion demonstration machine | Chairman | 2020-08-12 |
Former positions of Klaas de Boer
| Companies | Position | End |
|---|---|---|
Entrepreneurs Fund Management LLP
 Entrepreneurs Fund Management LLP Investment ManagersFinance Entrepreneurs Fund invests in companies located primarily in Western Europe. The firm targets companies operating in the fields of life sciences and technology. It provides financing from seed to pre-IPO stages with an investment size of EUR 250k – 10 million. | Private Equity Investor | 2021-06-29 |
| LIFELINE SCIENTIFIC, INC | Director/Board Member | 2016-11-30 |
| HELIOCENTRIS ENERGY SOLUTIONS AG | Director/Board Member | 2016-10-31 |
Prosonix Ltd.
 Prosonix Ltd. Pharmaceuticals: MajorHealth Technology Develops a portfolio of inhaled respiratory medicines | Director/Board Member | 2014-12-31 |
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Training of Klaas de Boer
Experiences
Positions held
Active
Inactive
Listed companies
Private companies
Connections
86
1st degree connections
27
1st degree companies
Male
Female
Members of the board
Executives
Linked companies
| Private companies | 27 |
|---|---|
CelLBxHealth Plc
 CelLBxHealth Plc Medical DistributorsDistribution Services Operates as a holding company with interests in providing products in cancer diagnostics and foetal health | Distribution Services |
Lifeline Scientific, Inc.
 Lifeline Scientific, Inc. Medical SpecialtiesHealth Technology Develops and markets medical products and services | Health Technology |
OptiNose, Inc.
 OptiNose, Inc. Pharmaceuticals: MajorHealth Technology Operates as a pharmaceutical company that develops and commercializes products for patients treated by ear, nose, throat and allergy diseases | Health Technology |
Vanenburg Group BV
 Vanenburg Group BV Packaged SoftwareTechnology Services Develops and sells software products | Technology Services |
INSEAD
 INSEAD Other Consumer ServicesConsumer Services Functions as a College/University | Consumer Services |
vasopharm GmbH
 vasopharm GmbH Pharmaceuticals: MajorHealth Technology Discovers and develops novel therapeutics for the treatment of cerebro and cardiovascular diseases | Health Technology |
Delft University of Technology
 Delft University of Technology Other Consumer ServicesConsumer Services Functions as a College/University | Consumer Services |
Entrepreneurs Fund Management LLP
Entrepreneurs Fund Management LLP Investment ManagersFinance Entrepreneurs Fund invests in companies located primarily in Western Europe. The firm targets companies operating in the fields of life sciences and technology. It provides financing from seed to pre-IPO stages with an investment size of EUR 250k – 10 million. | Finance |
Entrepreneurs Fund Management Services
 Entrepreneurs Fund Management Services Investment ManagersFinance Acts as an alternative investment manager | Finance |
Heliocentris Energy Solutions AG
 Heliocentris Energy Solutions AG Electrical ProductsProducer Manufacturing Produces energy management systems and hybrid energy solutions | Producer Manufacturing |
Prosonix Ltd.
Prosonix Ltd. Pharmaceuticals: MajorHealth Technology Develops a portfolio of inhaled respiratory medicines | Health Technology |
General Fusion, Inc.
General Fusion, Inc. Engineering & ConstructionIndustrial Services Engages in development, construction and operation of large-scale magnetized target fusion demonstration machine | Industrial Services |
20/10 Perfect Vision AG
 20/10 Perfect Vision AG Medical SpecialtiesHealth Technology Develops, manufactures and markets technologies for eye surgeries | Health Technology |
ProtAffin Biotechnologie AG
 ProtAffin Biotechnologie AG Pharmaceuticals: MajorHealth Technology Develops anti-inflammatory products | Health Technology |
Optinose AS
 Optinose AS Medical SpecialtiesHealth Technology Develops nasal drug delivery systems | Health Technology |
Xeros Technology Group Plc
 Xeros Technology Group Plc Industrial MachineryProducer Manufacturing Develops and sells various polymer bead cleaning systems for commercial applications | Producer Manufacturing |
inge GmbH
 inge GmbH Industrial MachineryProducer Manufacturing Develops water purification equipment | Producer Manufacturing |
n-Tec AS
 n-Tec AS Chemicals: SpecialtyProcess Industries Produces and markets carbon nano tubes, carbon cones/discs, and related carbon nano materials | Process Industries |
TECHNOLAS Perfect Vision GmbH
 TECHNOLAS Perfect Vision GmbH Medical SpecialtiesHealth Technology Develops and markets laser and surgical technology solutions | Health Technology |
Preferred Global Health, Inc.
 Preferred Global Health, Inc. Life/Health InsuranceFinance Provides health insurance services | Finance |
SmartKem Ltd.
SmartKem Ltd. Industrial SpecialtiesProcess Industries Develops and markets printable electronics and semiconductors | Process Industries |
Heliocentris Fuel Cell Solutions GmbH
 Heliocentris Fuel Cell Solutions GmbH Electronic Equipment/InstrumentsElectronic Technology Designs and develops, produces, markets and services proton exchange membrane based energy systems | Electronic Technology |
The New Motion BV
 The New Motion BV Electrical ProductsProducer Manufacturing Provides charging solutions for electric cars | Producer Manufacturing |
The Makers BV (Netherlands)
 The Makers BV (Netherlands) Apparel/FootwearConsumer Non-Durables Manufactures suits | Consumer Non-Durables |
Oomph Wellness Ltd.
 Oomph Wellness Ltd. Medical/Nursing ServicesHealth Services Offers health and wellness programs for elders | Health Services |
D3O Holdings Ltd.
 D3O Holdings Ltd. Financial ConglomeratesFinance Functions as an investment holding company | Finance |
SmartKem, Inc.
 SmartKem, Inc. SemiconductorsElectronic Technology Engages in the development of materials and processes used to make organic thin-film transistors | Electronic Technology |
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