About the language

Finnish (suomi or suomen kieli) is the language spoken by the majority of the population in Finland. It is one of the two official languages of Finland (the other one being Swedish) and an official minority language in Sweden. Finnish is a member of the Baltic-Finnic subgroup of the Finno-Ugric group of languages, which in turn is a member of the Uralic family of languages. The Baltic-Finnic subgroup also includes Estonian and other minority languages spoken around the Baltic Sea.

The word count in any Finnish text will be significantly lower than in the corresponding English text. The reason for this is that the Finnish language has fifteen grammatical cases as well as an elaborate system of possessive suffixes, infinitives, particles and enclitic particles. These allow for sophisticated ideas to be expressed in the form of a few long, morphologically complex words.

This is also why the same word will appear in many different forms in a Finnish text – all nouns, pronouns, adjectives and numerals are inflected in 15 cases. Finnish has no prepositions or articles.

The Finnish alphabet has 29 letters, including three that do not feature in the English alphabet: å, ä and ö.

STP services

STP offers translation, revision, editing, transcreation and SEO services from English, French, German and Swedish into Finnish, and from Finnish into English.

  • English to Finnish
  • French to Finnish
  • German to Finnish
  • Swedish to Finnish
  • Finnish to English

We translate 6–10 million words into Finnish every year. STP’s Finnish team provides linguistic services for clients in numerous industries across the Nordic region and wider world, and has particular experience of translating automotive, transportation and engineering texts. They have delivered over 15,000,000 words in these fields alone during the last decade. Our major clients within these verticals include well-known brands in the global car and motorcycle manufacturing industries, whose software, marketing and user documentation material we translate into Finnish. Why not find out what we can do for you?


STP was the first company in the UK to achieve both ISO 17100 and ISO 18587 certification. Whether the translation is done by our in-house experts or one of our carefully sourced freelancers, you can be confident that a translation produced by STP will hit the mark.


Style guide

STP has its own comprehensive style guide for Finnish to which all our translators adhere in their work, unless a client-specific or project-specific style guide takes precedence.

Need a quote for Finnish?

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