Tamtam Start free

71 leading critical infrastructure operators in Stockholm

Tamtam tracks 71 critical infrastructure operators headquartered in Stockholm. This list ranks all of them by number of employees on LinkedIn, led by Region Stockholm, SEB and Swedish Armed Forces. Their median headcount is 906. Half of them were founded in 1997 or later.

🇸🇪 Stockholm71 companiesUpdated Oct 24, 2026
#CompanyIndustryHeadquarters EmployeesFounded
1
Region Stockholmregionstockholm.se

A leading employer in healthcare and public transportation, providing vital services to two million residents in a rapidly growing region

Government Administration 🇸🇪 Stockholm 26,664 1863
2
SEBsebgroup.com

A financial services group in northern Europe, supporting customers with a range of financial services and a focus on corporate and investment banking

Banking 🇸🇪 Stockholm 20,986 1856
3
Swedish Armed Forcesforsvarsmakten.se

Provides national defense through armed combat, supports society in crises, conducts international missions, and develops future security capabilities.

Armed Forces 🇸🇪 Stockholm 15,547 n/a
4
Handelsbankenhandelsbanken.com

A European commercial bank with branches in Sweden, Finland, the Netherlands, Norway, and the UK, focusing on personalized financial solutions with a strong emphasis on trust, respect, and community relationships

Banking 🇸🇪 Stockholm 13,089 1871
5
If Insuranceif.se

The company provides insurance for people, animals, homes, and cars, ensuring businesses can operate smoothly during claims, with a customer-centric and diverse culture

Insurance 🇸🇪 Stockholm 9,849 1999
6
Länsförsäkringarjobb.lansforsakringar.se

Offering holistic solutions in banking, insurance, and real estate brokerage, including pet insurance and financing, through a network of 23 local companies in Sweden

Insurance 🇸🇪 Stockholm 8,934 1801
7
Loomisloomis.com

A global provider of secure payment management solutions for diverse industries, prioritizing sustainability, customer service, risk management, business efficiency, and societal impact

Financial Services 🇸🇪 Stockholm 7,404 1852
8
Handelsbanken i Sverigehandelsbanken.se

A Swedish bank founded in 1871 prioritizes personal relationships for successful banking, with 400 locations nationwide and operations in over 20 countries

Banking 🇸🇪 Stockholm 6,136 n/a
9
Klarnaklarna.com

The company revolutionizes shopping with flexible financial services and AI-powered payment solutions Over 150 million users and 500,000 retailers trust its innovative technology

Software Development 🇸🇪 Stockholm 4,627 2005
10
Folksamfolksam.se

A responsible insurance company in Sweden offering career opportunities with a focus on creating security and sustainability for customers through insurance and pension services

Insurance 🇸🇪 Stockholm 3,357 1908
11
Skandiaskandia.se

A pension company offering services including preventative health insurance, with the goal of building a secure retirement while maintaining good health

Insurance 🇸🇪 Stockholm 3,155 1855
12
Medicovermedicover.com

Leading international provider of healthcare and diagnostic services with a broad spectrum of offerings including clinics, hospitals, specialty-care facilities, laboratories, and blood-drawing points

Hospitals and Health Care 🇸🇪 Stockholm 3,090 1995
13
Alerisaleris.se

The company is a leading healthcare provider in Scandinavia, offering innovative solutions for a healthier life with specialists treating over two million patients annually

Hospitals and Health Care 🇸🇪 Stockholm 3,058 2005
14
Humana ABhumana.se

A leading Nordic care company offering individual and family care, personal assistance, elderly care, and specialized housing services, with a focus on providing a good life for all

Hospitals and Health Care 🇸🇪 Stockholm 2,943 2001
15
Praktikertjänst ABpraktikertjanst.se

A unique business model in Sweden with 2,000 practitioner shareholders providing dental and medical care, generating around SEK 9,600 M in revenue

Hospitals and Health Care 🇸🇪 Stockholm 2,887 1960
16
Stockholm Health Care Services (SLSO)slso.regionstockholm.se

A major provider of healthcare services in Sweden, handling millions of patient interactions annually in outpatient and inpatient care across multiple municipalities

Health and Human Services 🇸🇪 Stockholm 2,869 2004
17
Danderyds Sjukhusds.se

A northern Stockholm acute hospital providing specialized care in stroke, diabetes, and heart diseases, with a focus on research and employee well-being

Hospitals and Health Care 🇸🇪 Stockholm 2,868 n/a
18
Södersjukhusetsodersjukhuset.se

Emergency medical care provider in Stockholm serving half a million people annually, with 90,000 treated in emergency, 47,000 hospitalized, and 7,000 deliveries

Hospitals and Health Care 🇸🇪 Stockholm 2,802 1944
19
SJ ABsj.se

Provides sustainable long-distance and regional train services connecting major Swedish cities and Scandinavian capitals with frequent departures.

Rail Transportation 🇸🇪 Stockholm 2,758 2001
20
Kronans Apotekkronansapotek.se

A Swedish company with over 500 pharmacies and an online store, offering health, beauty, and prescription products tailored to customer needs Vision for a healthier world

Pharmaceutical Manufacturing 🇸🇪 Stockholm 2,378 n/a
21
Swedavia ABswedavia.se

A state-owned company that owns, operates, and develops a network of ten airports connecting Sweden to the world

Aviation and Aerospace Component Manufacturing 🇸🇪 Stockholm 2,258 2010
22
Trygg-Hansatrygghansa.se

Offers diverse insurance services and career opportunities across Sweden and Scandinavia, focusing on risk sharing and community presence.

Insurance 🇸🇪 Stockholm 2,228 n/a
23
Nobina Sverige ABnobina.se

The company is the largest in the Nordic region for public bus transportation, serving over 200 million passengers annually with a focus on simplicity, friendliness, and affordability

Ground Passenger Transportation 🇸🇪 Stockholm 2,217 n/a
24
GlobalConnectglobalconnectgroup.com

A leading digital infrastructure provider in Northern Europe offering Fiber-To-The-Home services to households and connectivity solutions to enterprises

Telecommunications 🇸🇪 Stockholm 1,996 n/a
25
Folktandvården Stockholm ABfolktandvardenstockholm.se

A leading dental care company in Europe with 80 clinics providing general, medical, and specialist dental services to over a million patients annually

Hospitals and Health Care 🇸🇪 Stockholm 1,537 1938
26
Trafikförvaltningen, Region Stockholmregionstockholm.se

The company works with strong brands in the transportation industry, focusing on delivering sustainable public transport solutions in the Stockholm region

Government Administration 🇸🇪 Stockholm 1,341 2012
27
Preem ABvaropreem.com

A leading energy company in Sweden, focused on sustainability and innovation in the changing energy landscape, aiming for a greener future

Renewable Energy Power Generation 🇸🇪 Stockholm 1,232 1994
28
Keolis Sverige ABkeolis.se

Provides locally adapted, sustainable public transport services, ensuring safety, customer focus, and contributing to community mobility and development.

Ground Passenger Transportation 🇸🇪 Stockholm 1,221 1999
29
3 Sverigetre.se

A challenger in the Swedish telecom market, focusing on developing products and network for two million customers to have the best mobile experience

Telecommunications 🇸🇪 Stockholm 1,191 2003
30
Teracom Group

The company provides TV, radio, and internet services in Sweden and Denmark, aiming to be a key player in future communication society

Broadcast Media Production and Distribution 🇸🇪 Stockholm 1,131 2010
31
Nordnet Bank ABnordnetab.com

A digital bank offering savings and investment services with a focus on user-friendliness, availability, low prices, and empowering customers to become successful investors

Banking 🇸🇪 Stockholm 1,101 1996
32
CAPIO S:T GÖRANS SJUKHUS ABcapiostgoran.se

A centrally located hospital offering a wide range of medical specialties, including emergency care, cardiology, orthopedics, surgery, and imaging services with a focus on employee input and patient care

Hospitals and Health Care 🇸🇪 Stockholm 1,043 n/a
33
Green Cargogreencargo.com

Provides sustainable, electric-powered freight transport across Scandinavia and Europe, serving industries like forestry, steel, paper, and intermodal container flows.

Rail Transportation 🇸🇪 Stockholm 1,021 2001
34
Boxerboxer.se

The company provides simple and relevant broadband, TV, and phone solutions, focusing on customer experience and adapting to changing media habits

Telecommunications 🇸🇪 Stockholm 993 1999
35
SOS Alarmsosalarm.se

SOS Alarm coordinates emergency response for Sweden 24/7, managing crises and providing a comprehensive safety network in collaboration with stakeholders

Public Safety 🇸🇪 Stockholm 992 1956
36
Avanza Bankavanza.se

Providing low-cost, user-friendly banking and investment services with a wide range of stocks, funds, and pension options.

Financial Services 🇸🇪 Stockholm 906 1999
37
MTR Nordic Groupmtrnordic.se

The company focuses on making a difference in people's daily lives and society by challenging old truths, finding new solutions, and being a top global train company

Urban Transit Services 🇸🇪 Stockholm 903 n/a
38
Internetstiftelseninternetstiftelsen.se

An independent organization promoting a positive impact of the internet on society, managing se and nu domains to fund initiatives supporting internet usage and innovation

IT Services and IT Consulting 🇸🇪 Stockholm 834 1997
39
Ellevioellevio.se

With nearly a million customers, this company is one of Sweden's largest electricity network companies, playing a key role in transitioning towards a more electrified society

Utilities 🇸🇪 Stockholm 831 2015
40
Stockholm Exergistockholmexergi.se

Stockholm's energy company provides heating, cooling, electricity, and waste processing services to over 800,000 people and numerous businesses in the region

Utilities 🇸🇪 Stockholm 825 n/a
41
Ersta diakonierstadiakoni.se

Ersta diakoni is Sweden's largest non-profit healthcare provider, emphasizing holistic care with values of professionalism, trust, and hope All profits reinvested for dignified welfare

Hospitals and Health Care 🇸🇪 Stockholm 822 1851
42
AMFamf.se

Provides simple, secure occupational pension solutions with high returns and low fees for Sweden's privately employed workers.

Insurance 🇸🇪 Stockholm 772 1973
43
Hoist Financehoistfinance.com

A Pan-European financial services provider specializing in purchasing and managing non-performing and performing loans, offering customized solutions and retail deposits

Financial Services 🇸🇪 Stockholm 772 1908
44
Dina Försäkringardina.se

Dina Försäkringar provides insurance to individuals and businesses in Sweden with 13 insurance companies collaborating under one brand

Insurance 🇸🇪 Stockholm 644 1768
45
Stockholms Sjukhemstockholmssjukhem.se

A private hospital and nursing home specializing in rehabilitation, palliative care, and residential care for the elderly and those with neurological or dementia illnesses

Hospitals and Health Care 🇸🇪 Stockholm 618 1867
46
Sveriges riksbankriksbank.se

Sweden's central bank responsible for monetary policy and promoting safe payment mechanisms, with a focus on high quality, innovation, and preparedness

Government Relations Services 🇸🇪 Stockholm 583 1668
47
NOBA Bank Groupnoba.bank

NOBA is a financial group with three strong brands enabling healthier finances for individuals through specialized offerings in multiple markets

Banking 🇸🇪 Stockholm 571 2004
48
OX2ox2.com

Develops, constructs, manages, and owns large-scale renewable energy solutions including wind, solar, and energy storage, powering sustainable electrification globally.

Renewable Energy Power Generation 🇸🇪 Stockholm 548 2004
49
Bankgirotbankgirot.se

Facilitating secure and efficient payment processing for individuals, companies, authorities, and organizations, handling an average of 9 million payments daily

Banking 🇸🇪 Stockholm 478 1959
50
Swedbank Corporates & Institutionsswedbank.com

Provider of corporate and investment banking services across the Nordic-Baltic region, offering a range of financial solutions and access to global research and distribution platform

Financial Services 🇸🇪 Stockholm 439 n/a
51
Doktor.Sejobs.doktor.se

The company is revolutionizing healthcare by combining digital tools with traditional care to create a patient-centered, modern solution

Hospitals and Health Care 🇸🇪 Stockholm 390 2016
52
PayExpayex.se

Payment service provider offering online, mobile, and retail solutions, invoicing, debt collection, factoring, part-payments, loans, with operations in four Nordic countries

Financial Services 🇸🇪 Stockholm 378 1972
53
Strukton Rail Sverigestrukton.se

We are a leading player in the railway industry, offering sustainable solutions through construction, maintenance, and ensuring high standards for rail infrastructure

Railroad Equipment Manufacturing 🇸🇪 Stockholm 377 n/a
54
SEK Svensk Exportkreditsek.se

A state-owned export credit corporation in Sweden provides financing for companies to grow, expand production, and enter global markets sustainably

Financial Services 🇸🇪 Stockholm 343 1962
55
Swedbank Roburswedbankrobur.se

Largest Nordic asset manager focusing on sustainable investments, managing funds for millions with emphasis on returns and societal impact.

Financial Services 🇸🇪 Stockholm 324 1967
56
Veolia Nordenveolia.se

A Nordic company providing water, waste, and energy solutions to industrial, public, and commercial clients, focused on resource optimization and sustainability

Environmental Services 🇸🇪 Stockholm 285 n/a
57
Swedbank Payswedbankpay.se

providing comprehensive payment solutions for e-commerce and physical stores across multiple Nordic countries to support business growth

Financial Services 🇸🇪 Stockholm 281 n/a
58
Northmill Banknorthmill.com

A Swedish bank focused on technology, with a goal to improve financial life through digital yet personal experiences in banking and shopping

Financial Services 🇸🇪 Stockholm 236 2006
59
Avida Finans ABavidafinance.com

Avida Finans offers financial solutions for businesses through invoice purchase and factoring, as well as lending services for individuals, with state deposit protection

Financial Services 🇸🇪 Stockholm 192 1983
60
Nordax Bankcareer.nordax.com

Innovative bank embracing the new normal, offering career opportunities and a glimpse into life at the company ⤴️

Banking 🇸🇪 Stockholm 181 2003
61
Netmorenetmoregroup.com

Global IoT operator providing secure, reliable communication networks and ecosystems for cities, industries, and properties worldwide with partners.

Telecommunications 🇸🇪 Stockholm 170 2010
62
PRI Pensionsgarantipri.se

The company provides pension services, including credit insurance, actuarial services, and pension consulting, allowing businesses to manage pension funds internally for cost savings and security

Insurance 🇸🇪 Stockholm 159 1961
63
Bliwa Livförsäkringbliwa.se

The company provides insurance for accidents, illness, death, unemployment, and healthcare, focusing on long-term security for customers and policyholders

Insurance 🇸🇪 Stockholm 153 2003
64
Euroclear Swedeneuroclear.com

A Swedish financial market infrastructure handling clearing and settlement of securities for companies and financial institutions, with a global presence

Financial Services 🇸🇪 Stockholm 144 1971
65
Brite Paymentsbritepayments.com

Fintech company in Sweden operating across Europe, offering instant payments solution through open banking, focusing on consumer experience and financial security

Financial Services 🇸🇪 Stockholm 135 2019
66
Morrow Bankmorrowbank.com

Modern digital niche bank offering personal loans, credit cards, and deposit accounts in Norway, Sweden, and Finland, focused on efficiency, innovation, and employee development

Financial Services 🇸🇪 Stockholm 87 2014
67
EP Bankepbank.se

An independent bank providing financial services to private and institutional investors, with a focus on wealth management, equity research, and corporate finance

Banking 🇸🇪 Stockholm 84 1994
68
Sjunde AP-fonden, AP7ap7.se

A governmental agency managing premium pension funds for Swedish citizens, offering the AP7 Såfa fund option with higher returns and lower fees than private options

Financial Services 🇸🇪 Stockholm 82 2000
69
Nordiskanordiska.se

A European Banking-as-a-Service provider offering financial services infrastructure through APIs, deposit accounts, and business-driving liquidity to customers in multiple countries

Financial Services 🇸🇪 Stockholm 79 2008
70
Eir Insuranceeirforsakring.com

A fully digital insurance company utilizing automation, serverless IT, and AI to offer low-cost operations and superior risk selection for retail customers

Insurance 🇸🇪 Stockholm 52 2019
71
Storebrand AM Sverigestorebrand.se

A wholly-owned subsidiary offering investment services in funds, alternative assets, discretionary management, and portfolio advice, focusing on simplicity, value, and sustainability

Investment Management 🇸🇪 Stockholm 44 n/a

Turn this list into pipeline

Tamtam finds the decision-makers at every company on a list like this one, with verified emails, phone numbers and the buying signals that tell you when to reach out.

Build your own list, free

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.

More company lists in Stockholm

The same list elsewhere in Sweden