# Top 25 critical infrastructure operators in Tallinn Tamtam tracks 25 critical infrastructure operators headquartered in Tallinn. This list ranks all of them by number of employees on LinkedIn, led by Luminor Group, Swedbank Estonia and EMT. Their median headcount is 392. Half of them were founded in 1997 or later. This selection of critical infrastructure operators in Tallinn features a concentration of financial services, telecommunications, and energy companies. Among them are Luminor Group, providing banking services across the Baltic region, and Swedbank Estonia, a major bank in the Nordic and Baltic countries. Other notable companies include EMT, a leader in Estonian mobile communication, and Eesti Energia, an international energy company focused on renewable energy. Tallink Grupp offers passenger and cargo transport services in the Baltic Sea. Omniva is an international logistics provider specializing in cross-border e-commerce. The data shows a strong presence of banking institutions, with Luminor Group, Swedbank Estonia, LHV, Bigbank, SEB Eesti, and Inbank all headquartered in Tallinn. These companies collectively highlight Tallinn's role as a regional hub for financial operations. πŸ‡ͺπŸ‡ͺ Tallinn Β· 25 companies Β· Updated Nov 12, 2026 | # | Company | Industry | Headquarters | Employees | Founded | |---|---|---|---|---|---| | 1 | [Luminor Group](https://www.tamtam.ai/c/luminor-group) (luminor.ee)
Providing accessible, fast, and reliable banking services to individuals and businesses across the Baltic region with local expertise. | Banking | πŸ‡ͺπŸ‡ͺ Tallinn | 1,799 | 2017 | | 2 | [Swedbank Estonia](https://www.tamtam.ai/c/swedbank-estonia) (swedbank.ee)
A leading bank in the Nordic and Baltic countries, focusing on simplicity, openness, and responsibility to help customers grow financially | Financial Services | πŸ‡ͺπŸ‡ͺ Tallinn | 1,278 | | | 3 | [EMT](https://www.tamtam.ai/c/emt) (telia.ee)
Leader in Estonian mobile communication sector with top coverage, product development, and customer service Part of telecom group with global reach | Telecommunications | πŸ‡ͺπŸ‡ͺ Tallinn | 1,011 | | | 4 | [LHV](https://www.tamtam.ai/c/lhv) (lhv.ee)
A leading financial group in Estonia with banking, asset management, and insurance subsidiaries, offering services to over 390,000 customers | Financial Services | πŸ‡ͺπŸ‡ͺ Tallinn | 961 | 1999 | | 5 | [Eesti Energia](https://www.tamtam.ai/c/eesti-energia) (enefit.ee)
International energy company increasing renewable energy production, promoting sustainability, and transforming shale industry into circular economy-based chemical industry. | Consumer Services | πŸ‡ͺπŸ‡ͺ Tallinn | 818 | 1939 | | 6 | [Tallink Grupp](https://www.tamtam.ai/c/tallink-grupp) (tallink.com)
Passenger and cargo transport services in the Baltic Sea region, operating ferries, hotels, and Burger King restaurants in Baltics. | Travel Arrangements | πŸ‡ͺπŸ‡ͺ Tallinn | 703 | 1989 | | 7 | [Omniva](https://www.tamtam.ai/c/omniva) (omniva.ee)
International logistics provider with a focus on cross-border e-commerce, offering delivery services in the Baltics and beyond, with a large network of partners | Transportation, Logistics, Supply Chain and Storage | πŸ‡ͺπŸ‡ͺ Tallinn | 641 | | | 8 | [eu-LISA](https://www.tamtam.ai/c/eu-lisa) (eulisa.europa.eu)
Operates and manages large-scale IT systems for EU border management, asylum, migration policies, and criminal records information to ensure interoperability | IT Services and IT Consulting | πŸ‡ͺπŸ‡ͺ Tallinn | 588 | 2011 | | 9 | [Bigbank](https://www.tamtam.ai/c/bigbank) (jobs.bigbank.eu)
Specializing in term deposits and consumer loans, this bank operates across multiple countries, offering personalized services to clients | Banking | πŸ‡ͺπŸ‡ͺ Tallinn | 531 | 1992 | | 10 | [PΓ΅hja-Eesti Regionaalhaigla](https://www.tamtam.ai/c/pohja-eesti-regionaalhaigla) (regionaalhaigla.ee)
A leading hospital in Estonia with a mission to invest in people's health in the Northern region | Hospitals and Health Care | πŸ‡ͺπŸ‡ͺ Tallinn | 480 | 2005 | | 11 | [Elisa Eesti AS](https://www.tamtam.ai/c/elisa-eesti-as) (elisa.ee)
A leading provider of telecommunication and ICT services in Estonia, offering mobile, internet, TV services, and IT infrastructure solutions for businesses and public sector | Telecommunications | πŸ‡ͺπŸ‡ͺ Tallinn | 419 | | | 12 | [SEB Eesti](https://www.tamtam.ai/c/seb-eesti) (seb.ee)
Modern universal bank focusing on long-term client relationships, providing financial tools and advice to individuals and businesses in Estonia. | Financial Services | πŸ‡ͺπŸ‡ͺ Tallinn | 402 | | | 13 | [Inbank](https://www.tamtam.ai/c/inbank) (inbank.eu)
A fintech with EU banking license, connecting merchants, consumers, and financial institutions on an embedded finance platform Active contracts, deposits in Europe | Banking | πŸ‡ͺπŸ‡ͺ Tallinn | 392 | 2010 | | 14 | [ENEFIT](https://www.tamtam.ai/c/enefit) (enefit.com)
An international energy provider offering electricity, gas, and liquid fuels in the Baltic States, Finland, Poland, and beyond Commitment to environmentally-friendly energy solutions | Consumer Services | πŸ‡ͺπŸ‡ͺ Tallinn | 388 | 1939 | | 15 | [Ida-Tallinna Keskhaigla](https://www.tamtam.ai/c/ida-tallinna-keskhaigla) (itk.ee)
A leading hospital in Tallinn with seven clinics offering diagnostic, surgical, rehabilitation, and nursing services, focusing on patient-centered innovative healthcare | Hospitals and Health Care | πŸ‡ͺπŸ‡ͺ Tallinn | 342 | 1785 | | 16 | [Politsei- ja Piirivalveamet](https://www.tamtam.ai/c/politsei-ja-piirivalveamet) (karjaar.politsei.ee)
An organization offering a variety of roles in law enforcement and related fields, emphasizing a strong sense of community and dedicated employees | Law Enforcement | πŸ‡ͺπŸ‡ͺ Tallinn | 302 | | | 17 | [Elering](https://www.tamtam.ai/c/elering) (elering.ee)
An integrated operator connecting electricity and gas producers, network operators, and consumers, ensuring high-quality energy supply with reasonable costs | Oil and Gas | πŸ‡ͺπŸ‡ͺ Tallinn | 228 | 2010 | | 18 | [Registrite ja InfosΓΌsteemide Keskus (RIK) // Centre of Registers and Information Systems](https://www.tamtam.ai/c/registrite-ja-infosusteemide-keskus-rik-centre-of-registers-and-information) (rik.ee)
An experienced developer and administrator of public sector IT-systems, providing innovative e-services for efficient governmental administration, law, and criminal jurisdiction worldwide | IT Services and IT Consulting | πŸ‡ͺπŸ‡ͺ Tallinn | 213 | 1994 | | 19 | [Riigi InfosΓΌsteemi Amet // Estonian Information System Authority (NCSC-EE)](https://www.tamtam.ai/c/riigi-infosusteemi-amet-estonian-information-system-authority-ncsc-ee) (ria.ee)
National competence center for digital infrastructure, cybersecurity, e-government services, managing Internet network, securing e-elections, and promoting Estonian digital identity globally. | IT Services and IT Consulting | πŸ‡ͺπŸ‡ͺ Tallinn | 202 | 2011 | | 20 | [Tallinn Airport (TLL)](https://www.tamtam.ai/c/tallinn-airport-tll) (airport.ee)
Operates and develops airports in Estonia, with a focus on enhancing passenger experience and providing services to airlines and cargo companies | Airlines and Aviation | πŸ‡ͺπŸ‡ͺ Tallinn | 199 | 1936 | | 21 | [AS Eesti Raudtee / Estonian Railways Ltd](https://www.tamtam.ai/c/as-eesti-raudtee-estonian-railways-ltd) (evr.ee)
State-owned railway operator managing railway administration, infrastructure maintenance, traffic management, and cross-border cooperation for smooth operation and development since 2009 | Rail Transportation | πŸ‡ͺπŸ‡ͺ Tallinn | 185 | 1870 | | 22 | [ERGO Insurance SE (ERGO Eesti)](https://www.tamtam.ai/c/ergo-insurance-se-ergo-eesti) (ergo.ee)
Offers a wide range of insurance products including life, health, pension, and asset insurance through an extensive sales network in Estonia | Insurance | πŸ‡ͺπŸ‡ͺ Tallinn | 181 | | | 23 | [CF&S Group](https://www.tamtam.ai/c/cf-and-s-group) (cfs.net)
A professional logistics company offering road, railway, sea, and air transport solutions with a focus on efficiency, flexibility, and cutting-edge technology | Transportation, Logistics, Supply Chain and Storage | πŸ‡ͺπŸ‡ͺ Tallinn | 87 | 1997 | | 24 | [Citadele pank](https://www.tamtam.ai/c/citadele-pank) (cblgroup.com)
Universal bank offering a wide range of banking products, wealth management, insurance, leasing, and innovative financial technology services mainly in the Baltic region | Banking | πŸ‡ͺπŸ‡ͺ Tallinn | 73 | 2010 | | 25 | [Enefit Volt](https://www.tamtam.ai/c/enefit-volt) (enefitvolt.com)
Estonia's largest electric vehicle public charging network with fast chargers, home & business solutions, and green energy focus for a sustainable future | Consumer Services | πŸ‡ͺπŸ‡ͺ Tallinn | 2 | | ## How this list is built Every company on this list has a Tamtam company profile. The industry is the one the company gives on LinkedIn; categories such as SaaS or fintech are classified by Tamtam's AI from the company's website and LinkedIn page; and the headquarters city must match the company's own address. Companies are ranked by the number of employees on LinkedIn, and the list is refreshed every night. Classifications can be wrong, so treat the list as a starting point rather than an official ranking. Last updated Nov 12, 2026. ## More company lists in Tallinn - [The largest companies in Tallinn](https://www.tamtam.ai/l/largest-companies-tallinn) (224) - [Multinational companies in Tallinn](https://www.tamtam.ai/l/multinational-companies-tallinn) (64) - [IT Services and IT Consulting companies in Tallinn](https://www.tamtam.ai/l/it-services-and-it-consulting-companies-tallinn) (39) - [SaaS companies in Tallinn](https://www.tamtam.ai/l/saas-companies-tallinn) (39) - [Financial Services companies in Tallinn](https://www.tamtam.ai/l/financial-services-companies-tallinn) (29) - [Software Development companies in Tallinn](https://www.tamtam.ai/l/software-development-companies-tallinn) (26) ## The same list elsewhere in Estonia - [Critical infrastructure operators in Estonia](https://www.tamtam.ai/l/critical-infrastructure-operators-estonia) (29) ## The same list elsewhere - [Critical infrastructure operators in the world](https://www.tamtam.ai/l/critical-infrastructure-operators-in-the-world) (23,312) - [Critical infrastructure operators in Europe](https://www.tamtam.ai/l/critical-infrastructure-operators-in-europe) (9,815) --- Source: https://www.tamtam.ai/l/critical-infrastructure-operators-tallinn