EKI.ee - Eesti Keele Instituut

What EKI.ee - Eesti Keele Instituut does

Eesti Keele Instituut (EKI), founded in 1947 and headquartered at Roosikrantsi 6, Tallinn, is the official national language institute of Estonia, operating under the Republic of Estonia's Ministry of Education and Research. The institute researches the Estonian language and develops dictionaries, terminology databases, language technology tools, language advice services, and learning resources. It serves Estonian citizens, language learners, educators, translators, researchers, government bodies, media organisations, and the overseas Estonian (Väliseesti) community. EKI's flagship products are the Sõnaveeb (Word Web) language portal, the EKI ühendsõnastik (Combined Dictionary) containing ~180,000 headwords, the ÕS 2025 orthographic dictionary (~60,000 headwords, the legal standard for written Estonian from 1 January 2026), the Keeleõppija Sõnaveeb learner dictionary (~7,000 words for A2–B1 learners), and the EKI teatmik orthographic reference manual. Supporting technology includes the Ekilex dictionary database system, Keelekorpused (language corpora), the Tõlkevärav (Translation Gateway), Kõneveeb (Speech Web), and the Keelemudelite mõõdupuu large language model benchmark.

The institute is structured around departments covering lexicography, terminology, dialectology, language history, and language technology, and coordinates multiple national programmes including the Estonian Language Technology Programme, Terminology Programme, Finno-Ugric Peoples Programme, and Estonian College Textbooks Programme. Educational services are delivered through the Keelesamm platform and in-person language courses in Tallinn, Narva, and Jõhvi, including B2 and C1 proficiency exam preparation and custom (tellimuskoolitused) courses for institutions and enterprises.

EKI is funded entirely through state budget allocations and EU structural funds (ESF programmes); there is no commercial revenue model. All core language resources are provided free of charge to the public. Partnerships include a July 2026 cooperation agreement with Postimees Grupp on Estonian-language dataset use, ongoing collaborations with the University of Tartu and other academic institutions on terminology, and coordination with the Emakeele Selts (Mother Tongue Society), whose language committee makes official decisions on Estonian language standards embedded into EKI's products. The institute also runs the annual Selge sõnumi (Clear Message) competition (since 2014) and the Keelekümbluse kvaliteediauhind (Language Immersion Quality Award).

Name

EKI.ee - Eesti Keele Instituut

Legal name

Eesti Keele Instituut

Website

https://eki.ee

Company type

Private

Founded year

1947

Operating status

Operating

Short description

Eesti Keele Instituut (EKI) is Estonia's official national language institute, founded in 1947, that researches the Estonian language and develops dictionaries, terminology databases, language technology tools, and learning resources. It serves citizens, learners, educators, researchers, and government bodies through free public platforms including Sõnaveeb and EKI teatmik.

Ownership category

akta.pro rank

Product category

National Language Authority Services

NAICS

Language Schools (611630), Exam Preparation and Tutoring (611691)

SIC

Services-Educational Services (8200)

akta.pro primary industry

Grammar, Vocabulary & Pronunciation Materials (EDAGAHAB)

akta.pro secondary industries

Language Assessment, Placement Testing & Proficiency Certification Tools (EDAFAOAH), Exam Preparation for Language Proficiency (TOEFL/IELTS/DELE/HSK/JLPT, etc.) (EDAMAFAF), Translation, Language Accessibility & Reading Support Tools (e.g., TTS, Captions, Immersive Reader) (EDAFAOAL)

Keywords

• Estonian language research
• Dictionary publishing
• Terminology databases
• Language learning platform
• Language technology tools

Headquarters

HQ city

Tallinn

HQ country

Estonia

HQ region

Europe

Offices1 record

Markets served

GTM type

B2C

Offering type

Services

Cost components

Personnel, Technology or R&D, Operations, Others

Revenue model

1. Government Institutional Funding: EKI is a government research and development institution funded by the Republic of Estonia. Revenue is derived from state budget allocations, national language programmes (Estonian Language Technology Programme, Terminology Programme, Finno-Ugric Peoples Programme, Estonian College Textbooks Programme), and EU structural funds (ESF programmes). No commercial product revenue model.

Go-to-market motion1 record

Distribution channels4 records

Marketing channels10 records

Core offering

Eesti Keele Instituut (Institute of the Estonian Language) is Estonia's national government language institute that researches the Estonian language and develops authoritative dictionaries, terminology databases, language technology tools, language learning platforms, and language advisory services. Core deliverables include the Sõnaveeb portal aggregating the EKI ühendsõnastik (~180,000 words), the ÕS 2025 orthographic dictionary (~60,000 headwords), the Keeleõppija Sõnaveeb for A2–B1 learners (~7,000 words), the Esterm terminology database (160+ collections, ~330,000 terms), and the EKI teatmik orthographic handbook.

Product overview

EKI.ee - Eesti Keele Instituut (Institute of the Estonian Language) is Estonia's national language institute that develops and maintains Estonian language resources and technology. The primary product is Sõnaveeb (Word Web), a comprehensive language portal combining multiple word collections and databases. The core dictionary offerings include the EKI ühendsõnastik (EKI Combined Dictionary) with approximately 180,000 words, the ÕS 2025 orthographic dictionary with approximately 60,000 headwords, and the Keeleõppija Sõnaveeb for language learners with approximately 7,000 words. Supporting products include the EKI terminibaas Esterm terminology database (160+ collections, 330,000+ terms), the EKI teatmik reference manual, the Ekilex dictionary database system, and various language technology tools including Tõlkevärav (Translation Gateway), Kõneveeb (Speech Web), and Keelekorpused (Language Corpora). Educational offerings include Keelesamm (Language Step) platform, training courses, and the Keelenõu language advice service. Additional tools include dialect and place name databases.

Differentiator

Problem solved

Functional benefit

Brands

• Sõnaveeb: Estonian language portal containing general language dictionaries, specialized dictionaries, and terminology databases
• EKI ühendsõnastik
• EKI teatmik
• Keeleõppija Sõnaveeb
• Keelesamm
• Selge sõnum
• Ekilex
• Esterm

Products and services

• Sõnaveeb (Word Web) EKI's comprehensive online language portal aggregating the EKI ühendsõnastik (~180,000 words), the ÕS 2025 orthographic dictionary, and 160+ terminology databases with ~330,000 Estonian terms. Free public access for citizens, students, translators, and educators.
• EKI ühendsõnastik (EKI Combined Dictionary) Continuously compiled and updated general Estonian language dictionary containing approximately 180,000 headwords, presenting general language information in accordance with written language norms.
• Eesti õigekeelsussõnaraamat ÕS 2025 (Estonian Orthographic Dictionary) The official Estonian orthographic dictionary, the legal standard for Estonian written language from January 1, 2026. Contains approximately 60,000 headwords, published in print and as a web version.
• Keeleõppija Sõnaveeb (Learner's Word Web) Language learner's dictionary designed for Estonian learners at A2 and B1 proficiency levels, containing approximately 7,000 words with explanations in simple language, example sentences, and some images.
• EKI teatmik (EKI Reference Manual) Estonian orthographic handbook providing continuously updated information about contemporary Estonian language, including spelling rules and language advice.
• EKI terminibaas Esterm (Esterm Terminology Database) EKI's terminology database containing terminology from 160+ specialized fields with approximately 330,000 Estonian terms, including the largest collections Esterm and the military terminology database Militerm.
• Keelesamm (Language Step) Estonian language learning and development platform offering structured courses including B2 and C1 level exam preparation, delivered in Tallinn, Narva, Jõhvi and other locations; includes in-person training for educational institutions, government bodies, and enterprises.

Quantifiable outcome

• EKI ühendsõnastik contains ~180,000 Estonian words and expressions as of 2026
• +4 more outcomes

Segments6 records

Ideal customer profiles5 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

AI capability2 records

Feature9 records

Partnerships

Four partnerships are on record, tiered core and minor.

• Postimees GruppcoreStrategic or Co-development Partner · 3 July 2026Eesti Keele Instituut and Postimees Grupp signed a cooperation agreement for the use of Estonian language datasets. Postimees Grupp will use EKI's Estonian language data resources, strengthening collaboration between Estonia's national language authority and its major media group for language data development.
• Universities and Expert InstitutionscoreStrategic or Co-development PartnerEKI collaborates with Estonian universities (including University of Tartu) and expert institutions on terminology commissions and specialized dictionaries. EKI terminologists provide technical support, while experts from partner institutions develop field-specific terminology. This covers over 160 terminological collections including EKI Esterm and Militerm (military terminology database).
• Emakeele Selts (Mother Tongue Society)coreStrategic or Co-development PartnerThe Emakeele Seltsi keeletoimkond (Mother Tongue Society's Language Committee) makes official decisions on Estonian language standards, norms, and recommendations. EKI publishes these decisions in its dictionaries and Sõnaveeb. The committee operates independently and works in close coordination with EKI on language policy.
• Keelekümbluse metoodikakeskused (Language Immersion Methodology Centres)minorChannel Partner/ Reseller/ DistributorEKI coordinates LAK-õppe (Content and Language Integrated Learning) methodology centres across Estonia. These centres distribute EKI's language learning methodologies and training to schools implementing language immersion programmes.

Scale indicators7 records

Recent moves6 records

Expansion highlights6 records

Broad incumbents

• Merriam-Webster: Major commercial dictionary publisher and language reference brand in the United States. Comparable to EKI's dictionary and language reference portfolio in product category, though operating under a commercial model rather than government mandate.
• Oxford English Dictionary (Oxford University Press): The most authoritative English-language dictionary, comparable to EKI ühendsõnastik and ÕS 2025 in function. A larger commercial incumbent with broader scope but similar core activity of curating authoritative lexical content for a major language.

Emerging players

• Duolingo: Global language learning platform with freemium and app-based delivery. Comparable to EKI's Keelesamm and Keeleõppija Sõnaveeb offerings for Estonian learners, but as a commercial platform targeting many languages versus EKI's government-funded Estonian-specific stack.

Direct peers

• Académie française: France's official language authority responsible for the French dictionary and language standards. Comparable to EKI as a long-established state-backed institution with normative authority over a national language and published reference works.
• Institut für Deutsche Sprache (IDS): Germany's central research institute for the German language, maintaining corpora, dictionaries, and linguistic research infrastructure. Comparable to EKI in its publicly funded research-and-development mandate for a national language.
• Språkrådet (Language Council of Norway): Norway's national language policy and advisory body, responsible for Bokmål and Nynorsk standards. Comparable to EKI in its role as a publicly funded national language authority overseeing written norms and language policy.
• Real Academia Española (RAE): Spain's official language academy, custodian of the Diccionario de la lengua española and authoritative orthographic standards for Spanish. Comparable to EKI in its normative authority over written language and dictionary publication mandate.
• Institute for the Languages of Finland (Kotus): Finland's national language research institute, which maintains Finnish and Swedish language dictionaries, terminology databases, and language advice services. The closest functional peer to EKI given the parallel government-mandated role over a small Finno-Ugric national language.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat5 records

Key risks5 records

Key highlights6 records

Customer concentration

• Xinstagram.com/keelekeerutaja
• YouTubeyoutube.com/c/EestiKeeleInstituut
• Facebookfacebook.com/Eesti.Keele.Instituut
• LinkedInlinkedin.com/company/institute-of-the-estonian-language

Revenue estimate

Valuation estimate

Number of profiles

Profiles11 records

Funding overview

Funding rounds

Investors

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M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about EKI.ee - Eesti Keele Instituut