The multinational companies headquartered in Helsinki include large established groups and some younger firms. Key sectors represented are banking, industrial machinery, manufacturing, and IT services. Notable companies include Nordea, a universal bank; Wärtsilä, providing technology and services for sustainable societies; UPM, a global provider of renewable fibres and advanced materials; and Wolt, a technology company developing a local commerce platform. Other significant firms are S-ryhmä / S Group and Kesko - K-Group in retail.
A recurring pattern among these companies is a strong emphasis on sustainability and environmental performance. Many firms, such as Wärtsilä, UPM, Stora Enso, and Outokumpu, highlight their commitment to sustainable solutions, renewable products, and reducing carbon footprints in their respective industries.
| # | Company | Employees | |||
|---|---|---|---|---|---|
| 1 |
Nordeanordea.com
A leading universal bank in the Nordic region, providing financial support, omnichannel customer experiences, digital services, and driving sustainable change |
29,861 | |||
| 2 |
Wärtsiläwartsila.com
This company empowers sustainable societies by providing innovative technology and services for improved environmental and economic performance globally |
18,000 | |||
| 3 | 18,000 | ||||
| 4 | 12,348 | ||||
| 5 |
University of Helsinkihelsinki.fi
Leading multidisciplinary research university fostering international collaboration, education, and innovation for sustainable solutions and global impact. |
11,563 | |||
| 6 |
S-ryhmä / S Groups-ryhma.fi
Network of cooperatives operating retail stores, services, banking, and hospitality across Finland and the Baltic region, serving co-op members. |
10,730 | |||
| 7 | 9,343 | ||||
| 8 |
Kesko - K-Groupkesko.fi
A leading Finnish trading sector company with grocery, building, technical, and car trade operations, focusing on sustainability and employee development |
8,283 | |||
| 9 |
Tietotietoevry.com
The company focuses on leveraging data-driven opportunities to create value for individuals, businesses, and society through software, services, and co-innovation |
6,730 | |||
| 10 |
Stora Ensostoraenso.com
A global provider of renewable products in packaging, biomaterials, construction, and paper, promoting sustainability with low-carbon, fiber-based solutions for eco-friendly businesses |
6,276 | |||
| 11 |
Mehiläinenmehilainen.fi
Provider of social and healthcare services in Finland and internationally, offering high-quality care, investing in digitalization, with over 37,000 employees |
4,824 | |||
| 12 | 4,786 | ||||
| 13 |
Outokumpuoutokumpu.com
Global leader in sustainable stainless steel production, turning recycled steel into long-lasting material used in various applications while actively working towards reducing carbon footprint |
3,724 | |||
| 14 |
Kalmarkalmarglobal.com
Global leader in sustainable cargo handling solutions for ports, terminals, and heavy industry, providing innovative, eco-efficient operations with an extensive electric portfolio |
3,583 | |||
| 15 |
Metso Outotecmetso.com
Provides sustainable technologies, solutions, and services for aggregates, minerals processing, and metals refining industries, improving efficiency and reducing environmental risks globally. |
3,577 | |||
Want more companies than this list?This page shows the largest ones only. Connect to Tamtam to see every company that matches, filter by size, industry or growth, and reach their decision-makers. | |||||
| 16 |
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 |
3,410 | |||
| 17 |
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 |
3,404 | |||
| 18 |
Kemirakemira.com
Leading provider of safe and sustainable chemistries for water-intensive industries, striving to create a more sustainable future through collaboration and innovation |
3,312 | |||
| 19 |
PKC Grouppkcgroup.com
A multinational enterprise within the automotive industry, offering diverse products and services with a global presence and a focus on diversity and inclusion |
3,268 | |||
| 20 |
SOKs-ryhma.fi
A central cooperative providing expert services for S Group cooperatives, including chain management and marketing, with subsidiaries in travel, hospitality, and supermarket trade |
3,153 | |||
| 21 |
YIT - Urban developer and construction companyyitgroup.com
A leading development and construction company in North Europe, creating sustainable living spaces, public buildings, infrastructure, and fostering a positive work community |
2,821 | |||
| 22 |
Supercellsupercell.com
Global game company based in Helsinki, Finland, with offices in various locations Known for popular games like Clash of Clans and Clash Royale Promotes ownership and independence |
2,733 | |||
| 23 |
Amer Sportsamersports.com
Global group of iconic sports and outdoor brands inspiring people to explore and experience the joy of sports, aiming to elevate lives worldwide |
2,715 | |||
| 24 |
RELEX Solutionsrelexsolutions.com
Provides an AI platform for intelligent decision-making and automation in demand, inventory, merchandising, pricing, and supply chain operations for various businesses. |
2,477 | |||
| 25 |
Lindströmlindstromgroup.com
Family-owned textile service company offering workwear, mats, and washroom textiles with sustainable supply, maintenance, and recycling solutions. |
2,056 | |||
| 26 |
Uponoruponor.com
A global provider of water movement solutions for residential, commercial, and municipal customers, offering safe drinking water, energy-efficient heating and cooling systems, and reliable infrastructure solutions |
1,907 | |||
| 27 |
F-Secure Corporationf-secure.com
Leading cybersecurity company providing award-winning consumer products and partnering with service providers to protect millions worldwide from cyber threats. |
1,791 | |||
| 28 |
Cargotechiabgroup.com
Company rebranded from Cargotec to Hiab, now operating independently and publicly traded on Nasdaq Helsinki stock exchange. |
1,772 | |||
| 29 |
Patriapatriagroup.com
Provides aerospace and military equipment, armored vehicles, mortar systems, and pilot training while offering lifecycle support, maintenance, and intelligence surveillance for critical operations. |
1,641 | |||
| 30 | 1,630 | ||||
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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 Nov 11, 2026.
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