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Mikko Juhani Tamminen
Mikko Juhani Tamminen is a director of Quantanite Holdings Limited and a director of Portland OAK Limited, among 4 current roles on record. Source: Companies House records.
Director at Quantanite Holdings Limited · Director at Portland OAK Limited
- 4 current roles
- 1 previous role
- Served alongside 11 people
Mikko's network: 11 people across 4 organisations
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Official record Companies House · updated 4th October 2026 · Free, no card or password
Current roles
5 roles across 5 organisations-
Quantanite Holdings LimitedDirector · 2022-present
Official record · Companies House
- Source
- Companies House
- Organisation
- Quantanite Holdings Limited
- Role
- Director
- Appointed
- 2022-09-14
- Record reference
- Company FC039835
Current -
Portland OAK LimitedDirector · 2022-present
Official record · Companies House
- Source
- Companies House
- Organisation
- Portland OAK Limited
- Role
- Director
- Appointed
- 2022-09-14
- Record reference
- Company FC039837
Current -
James Boswell House Tenants Association LimitedDirector · 2021-present
Official record · Companies House
- Source
- Companies House
- Organisation
- James Boswell House Tenants Association Limited
- Role
- Director
- Appointed
- 2021-01-14
- Record reference
- Company 04828102
Current
2 more roles, including 1 previous role, with dates and sources
Sign in free to see all rolesPeople Mikko has served alongside
11 people across 4 organisationsBased on overlapping official board records. Calculated from official records
11 people across 4 organisations
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Create a free account to checkSources
- Companies House
- Officer appointments and resignations.
- Edition
- Register edition compiled 4th October 2026
- Identity
- Records are treated as the same person only where the evidence confirms it. How people are matched