Lanstu Oy, VAT ID FI28431881 — Verified

Active and verified against VIES as of 19 Sep 2026.

Confirmed against VIES on 19 Sep 2026, 08:20 UTC
Check ID: 01a0b8c0-84f3-7218-9519-342a348cda9b

VAT ID

FI28431881

Finland

Y-tunnus

2843188-1

Company

Lanstu Oy

Company type

Limited company

Founded

1 Aug 2017

Industry

Business and other management consultancy activities

Address

Kynnarinranta 26 A
02570 SIUNTIO KK
FINLAND

VAT rates in Finland (EUR)

Standard

25.5%

Reduced

13.5%

Reduced

10%

VAT rates as of 9 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 FI28431881 is built

The prefix FI marks Finland, where VAT is known locally as Arvonlisävero (ALV). The part after it, 28431881, is 8 digits. The whole number follows the format FI + 8 digits. The characters after the prefix correspond to the Y-tunnus 2843188-1.

For Lanstu Oy, its registered company type is Limited company; the national register or authority record gives a registration date of 1 Aug 2017, 9 years before the check; its Y-tunnus is 2843188-1.

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="FI28431881"></span>

Loads asynchronously, ~1.5 KB gzipped, no tracking, no dependencies. The badge links to this page, which shows the result stored for FI28431881 as of 19 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/FI28431881" \
  -H "Authorization: Bearer YOUR_API_KEY"
ResponseStored result of 19 Sep 2026 · 200 OK
{
  "valid": true,
  "vatId": "FI28431881",
  "countryCode": "FI",
  "countryName": "Finland",
  "companyName": "Lanstu Oy",
  "companyAddress": "Kynnarinranta 26 A\n02570 SIUNTIO KK",
  "companyRegistrationDate": "2017-08-01",
  "companyForm": "Limited company",
  "industryDescription": "Business and other management consultancy activities",
  "registryCode": "2843188-1",
  "registryCodeName": "Y-tunnus",
  "taxId": "2843188-1",
  "taxIdName": "Y-tunnus",
  "registryPrivacy": false,
  "website": null,
  "commercialName": null,
  "companyStatus": null,
  "secondaryActivities": [],
  "companyAgeYears": 9,
  "consultationNumber": null,
  "specialTerritory": null,
  "verifiedAt": "2026-09-19T08:20:19.827Z",
  "checkId": "01a0b8c0-84f3-7218-9519-342a348cda9b",
  "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": "2026-11-09"
  }
}

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.