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33 leading critical infrastructure operators in Helsinki

Tamtam tracks 33 critical infrastructure operators headquartered in Helsinki. This list ranks all of them by number of employees on LinkedIn, led by Nordea, Helsingin kaupunki – Helsingfors stad – City of Helsinki and OP Pohjola. Their median headcount is 1,039. Half of them were founded in 1996 or later.

🇫🇮 Helsinki33 companiesUpdated Oct 24, 2026
#CompanyIndustryHeadquarters EmployeesFounded
1
Nordeanordea.com

A leading universal bank in the Nordic region, providing financial support, omnichannel customer experiences, digital services, and driving sustainable change

Banking 🇫🇮 Helsinki 29,861 n/a
2
Helsingin kaupunki – Helsingfors stad – City of Helsinkihel.fi

One of Finland's largest employers offering diverse, socially significant jobs, professional development, skilled colleagues, flexible work hours, and competitive benefits

Government Administration 🇫🇮 Helsinki 11,657 n/a
3
OP Pohjolaop.fi

Largest Finnish financial group promoting sustainable prosperity, security, and wellbeing through cooperative banks and subsidiaries serving millions.

Financial Services 🇫🇮 Helsinki 10,388 n/a
4
HUS Helsingin yliopistollinen sairaalahus.fi

A leading healthcare provider in Finland with over 27,000 professionals, specializing in rare and complex diseases, treating 680,000 patients annually

Hospitals and Health Care 🇫🇮 Helsinki 6,975 2000
5
Mehiläinenmehilainen.fi

Provider of social and healthcare services in Finland and internationally, offering high-quality care, investing in digitalization, with over 37,000 employees

Hospitals and Health Care 🇫🇮 Helsinki 4,824 1909
6
Elisaelisa.fi

A pioneer in telecommunications, digital services, and 5G, providing sustainable solutions to millions of customers globally with a focus on Finland and Estonia

Telecommunications 🇫🇮 Helsinki 4,786 1882
7
Helsingin ja Uudenmaan sairaanhoitopiiri - Hospital District of Helsinki and Uusimaa (HUS)hus.fi

A leading healthcare provider offering specialized medical care, including treatment for rare and complex diseases, with a focus on patient well-being and cutting-edge care

Hospitals and Health Care 🇫🇮 Helsinki 4,361 n/a
8
Terveystaloterveystalo.com

The largest private health care provider in Finland and a leading occupational health company in the Nordic region, offering a wide range of health services

Hospitals and Health Care 🇫🇮 Helsinki 3,410 2001
9
Posti Group Oyjposti.fi

A diverse team at a logistics company handles everything from e-commerce parcels to love letters, driven by innovation and opportunity

Transportation, Logistics, Supply Chain and Storage 🇫🇮 Helsinki 3,404 1638
10
Kelakela.fi

The company builds a society where people can trust to receive support and security when needed, with various roles in IT, data services, benefits processing, and more

Government Administration 🇫🇮 Helsinki 3,346 1937
11
DNA Oyjcorporate.dna.fi

provides telecommunications connections, services, and devices for homes and workplaces, supporting digitalisation and simplifying daily life

Telecommunications 🇫🇮 Helsinki 2,081 2001
12
VRvrgroup.fi

A Finnish state-owned company with 160 years of experience in passenger, logistics, and maintenance services, promoting responsible and sustainable transport for a carbon-neutral tomorrow

Ground Passenger Transportation 🇫🇮 Helsinki 1,381 n/a
13
Fenniafennia.fi

The company is a partner for financial security, offering specialized insurance services for businesses, entrepreneurs, and households, focusing on risk management solutions

Insurance 🇫🇮 Helsinki 1,190 1882
14
S-Pankkis-pankki.fi

A Finnish bank within the S Group, offering financial services with a focus on convenience and benefits, integrating banking and retail services

Banking 🇫🇮 Helsinki 1,099 2007
15
Nordea Markets, Corporates & Institutionsnordea.com

The company is a leading bank in the Nordics and Europe, offering a wide range of financial products, market access, advisory services, and economic research

Capital Markets 🇫🇮 Helsinki 1,089 n/a
16
Lassila & Tikanojalt.fi

A service company promoting circular economy by maximizing material and property use efficiency, reducing environmental impact, and promoting social responsibility

Environmental Services 🇫🇮 Helsinki 1,059 1905
17
Attendo Suomiattendo.fi

Leading private provider of public care services in Finland, employing 17,000 professionals nationwide Services include care for elderly, individuals with disabilities, mental health patients, and children

Hospitals and Health Care 🇫🇮 Helsinki 1,039 2000
18
Helenhelen.fi

Provides electricity, district heating, carbon-neutral cooling, solar power systems, and services for electric transport and energy efficiency in Finland.

Utilities 🇫🇮 Helsinki 801 1909
19
Varmavarma.fi

A responsible and well-capitalized pension insurance company managing the pension funds of 900,000 individuals, offering rehabilitation and well-being services to support work ability

Insurance 🇫🇮 Helsinki 765 1998
20
Finnlinesfinnlines.com

A leading shipping operator offering freight and passenger services in the Baltic Sea, North Sea, and Bay of Biscay, with subsidiaries across Europe

Maritime Transportation 🇫🇮 Helsinki 763 1947
21
Multitudemultitude.com

Multitude is a regulated financial technology growth platform with European banking license, offering sustainable banking and financial services through various business units

Financial Services 🇫🇮 Helsinki 714 2005
22
Tallink Silja Oyfi.tallink.com

A leading passenger shipping company on the Baltic Sea, offering leisure and business travel services on 6 different routes with 19 vessels

Travel Arrangements 🇫🇮 Helsinki 698 n/a
23
Kevakeva.fi

A leading Finnish pension provider for public sector employees, offering pension management and work ability services to enhance productivity and well-being

Insurance 🇫🇮 Helsinki 672 1964
24
Ilmarinenilmarinen.fi

Finland's largest private earnings-related pension insurance company, offering statutory pension insurance for employers and entrepreneurs to ensure customers receive their earned pensions

Insurance 🇫🇮 Helsinki 662 1961
25
Mandatummandatum.fi

A Finnish financial service provider with over 600 experts, focused on creating a strong community culture and high employee satisfaction

Financial Services 🇫🇮 Helsinki 646 n/a
26
Esperi Care Oyesperi.fi

A leading provider of social and health services in Finland, offering housing services for elderly, mental health support, substance abuse rehabilitation, and disability services

Hospitals and Health Care 🇫🇮 Helsinki 645 2001
27
St1 Oyst1.com

An energy group focused on producing and selling CO2-aware energy, researching sustainable solutions, and operating fuel marketing, oil refining, and renewable energy projects

Oil and Gas 🇫🇮 Helsinki 625 1997
28
Fingrid Oyjfingrid.fi

A Finnish company responsible for electricity transmission in the high-voltage system, connecting power plants, factories, and distribution networks in Finland and abroad

Electric Power Transmission, Control, and Distribution 🇫🇮 Helsinki 549 1996
29
Pohjolan Liikennepl.fi

The company operates long-distance, local, and urban transport with over 1100 professionals, serving around 35 million customers annually with 500 buses

Truck Transportation 🇫🇮 Helsinki 164 1949
30
Digita Oydigita.fi

Transmits radio, television programs daily. Develops online TV, radio services using digital tech. Offers IoT services, Data Center, and private networks.

Telecommunications 🇫🇮 Helsinki 161 1999
31
Ferratum Globalglobal.ferratum.com

A global company modernizing traditional lending by providing quick, easy loans online with instant money transfers, operating in multiple countries

Financial Services 🇫🇮 Helsinki 141 n/a
32
Euroclear Finlandeuroclear.com

Global leader in settlement and securities services for bonds, equities, funds, and derivatives, with expertise in custody, issuer services, and general meeting services

Financial Services 🇫🇮 Helsinki 120 1992
33
Santander Consumer Finance Oysantanderconsumer.fi

Provides vehicle installment and leasing financing, purchase financing for durable goods, and unsecured loans for various consumer needs.

Financial Services 🇫🇮 Helsinki 68 2006

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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 Oct 24, 2026.

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