Mäen Aurinko Oy, VAT ID FI33643387 — Verified
Active and verified against VIES as of 11 Sep 2026.
Confirmed against VIES on 11 Sep 2026, 22:42 UTC
Check ID: 01a092a2-d98c-7c34-953f-25bb44d538d7
VAT ID
FI33643387
Y-tunnus
3364338-7
Company
Mäen Aurinko Oy
Company type
Limited company
Founded
15 Jun 2023
Industry
Storage of electricity
Address
c/oWinda Energy Oy Mikonkatu 2 D
00100 HELSINKI
FINLAND
VAT rates in Finland (EUR)
Standard
25.5%
Reduced
13.5%
Reduced
10%
VAT rates as of 10 Nov 2026
The registry details on this page come from the Finnish Patent and Registration Office (PRH) open data, published under CC BY 4.0, and were retrieved no earlier than the check time above. The company name and address come from VIES.
How FI33643387 is built
The prefix FI marks Finland, where VAT is known locally as Arvonlisävero (ALV). The part after it, 33643387, is 8 digits. The whole number follows the format FI + 8 digits. The characters after the prefix correspond to the Y-tunnus 3364338-7.
For Mäen Aurinko Oy, its registered company type is Limited company; the national register or authority record gives a registration date of 15 Jun 2023, 3 years before the check; its Y-tunnus is 3364338-7.
Related: Finland VAT number format · VAT number formats in the EU · EU VAT rates · What is VIES · VAT audit trail · Finland VAT API
Other checked VAT numbers in Finland
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Get API Keycurl "https://api.vatnode.dev/v1/vat/FI33643387" \ -H "Authorization: Bearer YOUR_API_KEY"
{
"valid": true,
"vatId": "FI33643387",
"countryCode": "FI",
"countryName": "Finland",
"companyName": "Mäen Aurinko Oy",
"companyAddress": "c/oWinda Energy Oy Mikonkatu 2 D\n00100 HELSINKI",
"companyRegistrationDate": "2023-06-15",
"companyForm": "Limited company",
"industryDescription": "Storage of electricity",
"registryCode": "3364338-7",
"registryCodeName": "Y-tunnus",
"taxId": "3364338-7",
"taxIdName": "Y-tunnus",
"registryPrivacy": false,
"website": null,
"commercialName": null,
"companyStatus": null,
"secondaryActivities": [],
"companyAgeYears": 3,
"consultationNumber": null,
"specialTerritory": null,
"verifiedAt": "2026-09-11T22:42:21.196Z",
"checkId": "01a092a2-d98c-7c34-953f-25bb44d538d7",
"source": "VIES",
"countryVat": {
"vatName": "Arvonlisävero",
"vatAbbr": "ALV",
"currency": "EUR",
"standardRate": 25.5,
"reducedRates": [
13.5,
10
],
"superReducedRate": null,
"parkingRate": null,
"vatNumberFormat": "FI + 8 digits",
"vatNumberPattern": "^FI\\d{8}$",
"identifiers": {
"registryAuthorityName": {
"fi": "Patentti- ja rekisterihallitus",
"sv": "Patent- och registerstyrelsen",
"en": "Finnish Patent and Registration Office"
},
"registryName": {
"fi": "kaupparekisteri",
"sv": "handelsregistret",
"en": "Trade Register"
},
"registryCodeName": {
"fi": "Y-tunnus",
"sv": "FO-nummer",
"en": "Business ID"
},
"taxIdName": {
"fi": "Y-tunnus",
"sv": "FO-nummer",
"en": "Business ID"
},
"vatIdName": {
"fi": "arvonlisäverotunniste",
"sv": "momsnummer",
"en": "VAT number"
}
},
"countryVatUpdatedAt": "2026-11-10"
}
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