![Sebastian Bondestam](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>)
Sebastian Bondestam
Director/Board Member at
GLASTON OYJ ABP
Net worth: 76 981 $ as of 31/05/2026
Profile
Sebastian Bondestam is currently the Deputy Chairman at Glaston Oyj and the President of the Infrastructure Segment at Uponor Oyj.
He is also a Board Member at Ahlström Capital Oy and the President of Uponor Infra Oy.
Previously, he held positions such as Director at Ahlstrom Oyj (Old), Production Director at Tetra Pak Ltd., and Director of Converting EU Operations at Tetra Pak GmbH.
He also served as a Director at Munksjö Oyj and Vice President of Converting Americas at Tetra Pak Asia Pte Ltd. Mr. Bondestam completed his graduate degree at Aalto University.
Known holdings in public companies
| Company | Date | Number of shares | Valuation | Valuation date |
|---|---|---|---|---|
GLASTON OYJ 0.14% | 31/03/2026 | 58,638 ( 0.14% ) | 76 981 $ | 31/05/2026 |
Sebastian Bondestam active positions
| Companies | Position | Start |
|---|---|---|
| UPONOR OYJ | Corporate Officer/Principal | 01/04/2007 |
| GLASTON OYJ ABP | Director/Board Member | 10/04/2018 |
Uponor Infra Oy
 Uponor Infra Oy Engineering & ConstructionIndustrial Services Provides sewer, storm, pressure pipe systems, design solutions and project services for municipalities, utilities and industry | President | 01/04/2013 |
Ahlström Capital Oy
 Ahlström Capital Oy Investment ManagersFinance Ahlström Capital invests in both public and private companies located across the globe primarily in Finland. The firm focuses on companies operating in forest & fiber and environmental technology sectors. It provides financing for buyout transactions with an investment size of EUR 10-50 million. The firm owns lead or majority stake and takes a seat on the board of directors. | Director/Board Member | - |
Former positions of Sebastian Bondestam
| Companies | Position | End |
|---|---|---|
| AHLSTROM | Director/Board Member | - |
Tetra Pak GmbH
 Tetra Pak GmbH Industrial MachineryProducer Manufacturing Manufactures food processing and packaging machines | Corporate Officer/Principal | 01/01/2007 |
Tetra Pak Asia Pte Ltd.
 Tetra Pak Asia Pte Ltd. Pulp & PaperProcess Industries Produces laminated paperboard packaging material | Corporate Officer/Principal | 01/01/2004 |
Tetra Pak Ltd.
 Tetra Pak Ltd. Pulp & PaperProcess Industries Provides food processing & packaging systems for milk, fruit juices, drinks, and other liquid products | Corporate Officer/Principal | 01/01/1999 |
Munksjö Oyj
 Munksjö Oyj Pulp & PaperProcess Industries Engages in the manufacturing of paper products | Director/Board Member | - |
Training of Sebastian Bondestam
Experiences
Positions held
Active
Inactive
Listed companies
Private companies
Connections
61
1st degree connections
10
1st degree companies
Male
Female
Members of the board
Executives
Linked companies
| Private companies | 10 |
|---|---|
Uponor Oyj
 Uponor Oyj Industrial MachineryProducer Manufacturing Manufactures plumbing and indoor climate systems for residential & commercial building markets | Producer Manufacturing |
Glaston Oyj
 Glaston Oyj Industrial SpecialtiesProcess Industries Provides glass processing solutions and services | Process Industries |
Ahlström Capital Oy
Ahlström Capital Oy Investment ManagersFinance Ahlström Capital invests in both public and private companies located across the globe primarily in Finland. The firm focuses on companies operating in forest & fiber and environmental technology sectors. It provides financing for buyout transactions with an investment size of EUR 10-50 million. The firm owns lead or majority stake and takes a seat on the board of directors. | Finance |
Ahlstrom Oyj
 Ahlstrom Oyj TextilesProcess Industries Produces fiber based materials | Process Industries |
Tetra Pak Ltd.
Tetra Pak Ltd. Pulp & PaperProcess Industries Provides food processing & packaging systems for milk, fruit juices, drinks, and other liquid products | Process Industries |
Aalto University
 Aalto University Other Consumer ServicesConsumer Services Functions as a College/University | Consumer Services |
Tetra Pak Asia Pte Ltd.
Tetra Pak Asia Pte Ltd. Pulp & PaperProcess Industries Produces laminated paperboard packaging material | Process Industries |
Tetra Pak GmbH
Tetra Pak GmbH Industrial MachineryProducer Manufacturing Manufactures food processing and packaging machines | Producer Manufacturing |
Uponor Infra Oy
Uponor Infra Oy Engineering & ConstructionIndustrial Services Provides sewer, storm, pressure pipe systems, design solutions and project services for municipalities, utilities and industry | Industrial Services |
Munksjö Oyj
Munksjö Oyj Pulp & PaperProcess Industries Engages in the manufacturing of paper products | Process Industries |
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