Vaisala Oy
Vaisala Oy is a Public Limited Company registered in Finland under 01244162, and its current status with Finnish Patent and Registration Office (PRH) is active. The company was incorporated on 15 March 1978 and lists its registered address as Helsinki, Finland. No shareholders are recorded for Vaisala Oy; ownership in this jurisdiction is held as the osakasluettelo (shareholder register) under Chapter 3 of the Companies Act (osakeyhtiölaki), a record kept privately rather than filed publicly. No beneficial owner (UBO) data is recorded for Vaisala Oy; access to beneficial-ownership data in this jurisdiction is governed by its own register rules. This profile is sourced directly from Finnish Patent and Registration Office (PRH) and was last updated on 24 September 2026.
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Officers
5
Directors and officers of Vaisala Oy
The President & Ceo of Vaisala Oy currently on record is Kai Olavi Oistamo Tec., M.sc. (eng.); five officers are currently on record for Vaisala Oy, filed with Finnish Patent and Registration Office (PRH). The source filing doesn't specify representation authority — whether officers can act individually or must sign jointly to bind the company — so that detail isn't available here.
Data availability
The register reports 15 officers in total, including past appointments, though only the 5 most relevant records are shown here.
Group Structure
Group structure of Vaisala Oy
Vaisala Oy has no recorded parent company — it sits at the top of its own group structure, with 15 subsidiaries recorded beneath it across 10 jurisdictions. Each of these downward relationships is derived rather than filed: resolved by matching entities across the registry network, not stated directly in a single document.
- Vaisala Inc. (United States)
- Vaisala Oyj (Sweden)
- Vaisala Inc. (United States)
- Vaisala Korea Co., Ltd. (South Korea)
- Speedwell Weather Corporation (United States)
- Vaisala Oy (Norway)
- VAISALA PTY. LTD. (Australia)
- Vaisala Inc. (United States)
- VAISALA LIMITED (United Kingdom)
- Vaisala Holding Oy (Finland)
Data availability
Those 15 subsidiaries span Finland, United States, Sweden, South Korea, Norway, Australia, and 4 more jurisdictions, though this list should not be read as complete — subsidiaries only become visible here where shareholder data has actually been filed with a register, so holdings in jurisdictions without that filing simply won't appear. One of the 15 go a level deeper still, with its own further subsidiaries recorded beneath it — additional ownership layers this view doesn't expand.
Vaisala Oy
Finland
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Frequently Asked Questions
Who is Vaisala Oy's UBO (Ultimate Beneficial Owner)?
No Ultimate Beneficial Owner (UBO) data is recorded for Vaisala Oy; access to beneficial-ownership data in this jurisdiction is governed by its own register rules.
What is Vaisala Oy's company registration number?
Vaisala Oy's registration number is 01244162, filed with Finnish Patent and Registration Office (PRH) in Finland. Its current status on the register is active.
Is Vaisala Oy still an active company?
Vaisala Oy's status on Finnish Patent and Registration Office (PRH) is listed as active.
When was Vaisala Oy incorporated?
Vaisala Oy was incorporated on 15 March 1978, according to Finnish Patent and Registration Office (PRH).
What is Vaisala Oy's registered address?
The registered address on file for Vaisala Oy is Helsinki, Finland.
What legal structure is Vaisala Oy registered as?
Vaisala Oy is registered as a Public Limited Company in Finland.
Who are the officers/directors of Vaisala Oy?
The President & Ceo of Vaisala Oy currently on record is Kai Olavi Oistamo Tec., M.sc. (eng.); five officers are currently on record for Vaisala Oy, filed with Finnish Patent and Registration Office (PRH).
Does Vaisala Oy have a parent company or subsidiaries?
Vaisala Oy has no recorded parent company — it sits at the top of its own group structure, with 15 subsidiaries recorded beneath it across 10 jurisdictions. Those 15 subsidiaries span Finland, United States, Sweden, South Korea, Norway, Australia, and 4 more jurisdictions, though this list should not be read as complete — subsidiaries only become visible here where shareholder data has actually been filed with a register, so holdings in jurisdictions without that filing simply won't appear. One of the 15 go a level deeper still, with its own further subsidiaries recorded beneath it — additional ownership layers this view doesn't expand.
Can Zavia monitor changes to Vaisala Oy's ownership over time?
This profile reflects a point-in-time snapshot from Finnish Patent and Registration Office (PRH). Zavia's monitoring API can track changes to Vaisala Oy's registered shareholders, officers, and group structure going forward, flagging updates as they're filed rather than requiring a manual recheck.
Can I access Vaisala Oy's data through an API?
Yes. Zavia's API connects directly to official government ownership registries across 195 countries and territories, including Finland, so records like Vaisala Oy's registration, shareholder, UBO, and group-structure data can be queried programmatically instead of viewed one page at a time.
Where does this company information come from, and how current is it?
This record is sourced directly from Finnish Patent and Registration Office (PRH) and was last synced on 24 September 2026.