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Ramstone Oy
OY
Active
Y-tunnus 3227063-8
Porvoonkatu 27D-2771, 00510
Helsinki
Manufacture of jewellery and related articles
·
NACE 3212
Est. 2021 · 4 years old
— employees
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Finland
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Companies
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Manufacture of jewellery and related articles
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Ramstone Oy
Overview
Financials
People & ownership
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People & ownership
Management
Actively employed in the business
Name
Role
Member since
Current (2)
JO
Jonne Otto Antero Rönkkö
Chief Executive Officer
Chief Executive Officer
2021
MH
Mervi Helena Pykäläniemi
Deputy Member
Deputy Member
2021
Former (1)
JY
Jukka Yrjö Antero Rönkkö
Deputy Chief Executive Officer
Deputy Chief Executive Officer
2021 – 2025
Board of directors
Non-executive oversight
Name
Role
Member since
Current (1)
JO
Jonne Otto Antero Rönkkö
Chairperson
Chairperson
2021
Former (1)
JY
Jukka Yrjö Antero Rönkkö
Board of Directors
Board of Directors
2021 – 2025
Shareholders
As of last annual report
No shareholder data available.
Beneficial ownership (UBO) data access is restricted in Denmark as of September 2025 per the EU 6th AML Directive.
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Headline figures, risk assessment and company summary
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Revenue, EBITDA, balance sheet and 5-year trend
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Corporate hierarchy, parent and subsidiary network