Arkkitehtitoimisto Ari Mäki-Marttunen Oy, VAT ID FI10391711 — Verified

Active and verified against VIES as of 17 Sep 2026.

Confirmed against VIES on 17 Sep 2026, 21:15 UTC
Check ID: 01a0b139-9fe0-7e63-be01-8206b3288d0f

VAT ID

FI10391711

Finland

Y-tunnus

1039171-1

Company

Arkkitehtitoimisto Ari Mäki-Marttunen Oy

Company type

Limited company

Founded

5 Jul 1995

Industry

Architectural activities

Address

Harjumäentie 3 B
02730 ESPOO
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 FI10391711 is built

The prefix FI marks Finland, where VAT is known locally as Arvonlisävero (ALV). The part after it, 10391711, is 8 digits. The whole number follows the format FI + 8 digits. The characters after the prefix correspond to the Y-tunnus 1039171-1.

For Arkkitehtitoimisto Ari Mäki-Marttunen Oy, its registered company type is Limited company; the national register or authority record gives a registration date of 5 Jul 1995, 31 years before the check; its Y-tunnus is 1039171-1.

Related: Finland VAT number format · VAT number formats in the EU · EU VAT rates · What is VIES · VAT audit trail · Finland VAT API

Embed this verification on your site

Paste the inline tag where the badge should appear (impressum, footer, About page) and drop the script anywhere on the same page – it works even if your framework moves <script> to the end of <body>.

Preview

Snippet

HTML
<script async src="https://vatnode.dev/badge.js"></script>
<span data-vatnode-vat="FI10391711"></span>

Loads asynchronously, ~1.5 KB gzipped, no tracking, no dependencies. The badge links to this page, which shows the result stored for FI10391711 as of 17 Sep 2026.

Validating VAT in your app? Use the VAT validation API — 100 free calls, no credit card required.

Get API Key
Request
curl "https://api.vatnode.dev/v1/vat/FI10391711" \
  -H "Authorization: Bearer YOUR_API_KEY"
ResponseStored result of 17 Sep 2026 · 200 OK
{
  "valid": true,
  "vatId": "FI10391711",
  "countryCode": "FI",
  "countryName": "Finland",
  "companyName": "Arkkitehtitoimisto Ari Mäki-Marttunen Oy",
  "companyAddress": "Harjumäentie 3 B\n02730 ESPOO",
  "companyRegistrationDate": "1995-07-05",
  "companyForm": "Limited company",
  "industryDescription": "Architectural activities",
  "registryCode": "1039171-1",
  "registryCodeName": "Y-tunnus",
  "taxId": "1039171-1",
  "taxIdName": "Y-tunnus",
  "registryPrivacy": false,
  "website": null,
  "commercialName": null,
  "companyStatus": null,
  "secondaryActivities": [],
  "companyAgeYears": 31,
  "consultationNumber": null,
  "specialTerritory": null,
  "verifiedAt": "2026-09-17T21:15:38.849Z",
  "checkId": "01a0b139-9fe0-7e63-be01-8206b3288d0f",
  "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"
  }
}

Need a VIES Consultation Number?

This public check doesn't issue a VIES consultation number, the reference that documents who checked a VAT number and when. Authenticated API calls that set your own EU VAT as the requester return one.

Validate a different VAT ID

Automate this in your app

Use the vatnode API to automate VAT validation in your invoicing or checkout flow. Free plan available, no credit card required.