![Jonas Siljeskär](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>)
Jonas Siljeskär
Chief Operating Officer at
BEWI ASA
Net worth: 224 532 $ as of 2026-06-29
Profile
Jonas Siljeskär is currently Managing Director at BEWI RAW BV, Member of the Supervisory Board at IZOBLOK SA, Chief Operating Officer at Bewi ASA since 2010, and Chief Operating Officer at Gustafs Inredningar I Dalarna AB. Former roles include Chief Executive Officer at BEWiSynbra Group AB from 2020 to 2025, Production Director at Tomoku Hus AB, and Production Manager at Thermisol AB. Education includes undergraduate studies at Dalarna University.
Known holdings in public companies
| Company | Date | Number of shares | Valuation | Valuation date |
|---|---|---|---|---|
BEWI ASA 0.05% | 2024-12-30 | 124,126 ( 0.05% ) | 224 532 $ | 2026-06-29 |
Jonas Siljeskär active positions
| Companies | Position | Start |
|---|---|---|
| BEWI ASA | Chief Operating Officer | 2009-12-31 |
| IZOBLOK S.A. | Director/Board Member | - |
Bewi Raw BV | Chief Executive Officer | - |
Gustafs Inredningar I Dalarna AB | Chief Operating Officer | - |
Former positions of Jonas Siljeskär
| Companies | Position | End |
|---|---|---|
BEWiSynbra Group AB
 BEWiSynbra Group AB Industrial SpecialtiesProcess Industries Manufactures packaging, components, and insulation products | Chief Executive Officer | 2025-10-31 |
Thermisol AB | Corporate Officer/Principal | - |
Tomoku Hus AB | Corporate Officer/Principal | - |
Training of Jonas Siljeskär
Experiences
Positions held
Active
Inactive
Listed companies
Private companies
Connections
26
1st degree connections
8
1st degree companies
Male
Female
Members of the board
Executives
Linked companies
| Private companies | 8 |
|---|---|
IZOBLOK SA
 IZOBLOK SA Industrial SpecialtiesProcess Industries Engages in the production of molded polypropylene foam | Process Industries |
Tomoku Hus AB | |
Gustafs Inredningar I Dalarna AB | |
Dalarna University of
 Dalarna University of Other Consumer ServicesConsumer Services Functions as a College/University | Consumer Services |
BEWiSynbra Group AB
BEWiSynbra Group AB Industrial SpecialtiesProcess Industries Manufactures packaging, components, and insulation products | Process Industries |
Bewi ASA
 Bewi ASA Containers/PackagingProcess Industries Manufactures and distributes expandable polystyrene packaging & insulation products | Process Industries |
Thermisol AB | |
Bewi Raw BV |
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