# List of IT services companies in Helsinki

Tamtam tracks 32 IT services companies headquartered in Helsinki. This list ranks the 30 largest by number of employees on LinkedIn, led by Tietoevry, Tieto and Digia Plc. Their median headcount is 253. Half of them were founded in 2009 or later.

This list contains IT services companies in Helsinki. These companies specialize in various aspects of technology, including software development, cloud solutions, and cybersecurity. Many of them focus on leveraging data and technology to create value for businesses and society, with a strong emphasis on sustainability and digital transformation.

Key companies include Tietoevry, which creates purposeful technology, and Digia Plc, a software and service company driving intelligent business. Nordcloud, an IBM Company, is a European leader in cloud implementation, while Reaktor is a global technology consultancy building digital products. Eficode specializes in DevOps, and 3stepIT focuses on sustainable technology lifecycle management.

🇫🇮 Helsinki · 30 companies · Updated Nov 11, 2026

| # | Company | Industry | Headquarters | Employees | Founded |
|---|---|---|---|---|---|
| 1 | [Tietoevry](https://www.tamtam.ai/c/tietoevry) (tieto.com)<br>Creating purposeful technology to reinvent the world for good, focusing on the future of businesses, societies, and humanity | IT Services and IT Consulting | 🇫🇮 Helsinki | 9,343 |  |
| 2 | [Tieto](https://www.tamtam.ai/c/tieto-helsinki) (tietoevry.com)<br>The company focuses on leveraging data-driven opportunities to create value for individuals, businesses, and society through software, services, and co-innovation | IT Services and IT Consulting | 🇫🇮 Helsinki | 6,730 | 1968 |
| 3 | [Digia Plc](https://www.tamtam.ai/c/digia-plc) (digia.com)<br>A software and service company focusing on leveraging technology and human capabilities to drive intelligent business, society, and a sustainable future | IT Services and IT Consulting | 🇫🇮 Helsinki | 1,392 |  |
| 4 | [Nordcloud, an IBM Company](https://www.tamtam.ai/c/nordcloud-an-ibm-company) (nordcloud.com)<br>European leader in cloud implementation, application development, managed services, and training, delivering multi-cloud solutions for sustainable business value. | IT Services and IT Consulting | 🇫🇮 Helsinki | 965 | 2011 |
| 5 | [Reaktor](https://www.tamtam.ai/c/reaktor) (reaktor.com)<br>A global technology consultancy specializing in designing and building digital products for industry leaders, fostering a high-performing software development culture | IT Services and IT Consulting | 🇫🇮 Helsinki | 761 | 2000 |
| 6 | [Eficode](https://www.tamtam.ai/c/eficode) (eficode.com)<br>A leading DevOps company in Europe driving the DevOps and Agile movement, providing services in DevOps, Agile, continuous delivery, test automation, and software creation | IT Services and IT Consulting | 🇫🇮 Helsinki | 537 | 2005 |
| 7 | [3stepIT](https://www.tamtam.ai/c/3stepit) (3stepit.com)<br>A Technology Lifecycle Management provider reducing e-waste and global emissions by helping businesses consume technology sustainably, with refurbishing centers and asset management platform | IT Services and IT Consulting | 🇫🇮 Helsinki | 452 | 1997 |
| 8 | [Siili Solutions](https://www.tamtam.ai/c/siili-solutions) (siili.com)<br>Full-spectrum digital development partner specializing in AI-driven software solutions, combining development skills and industry knowledge to enhance competitiveness. | IT Services and IT Consulting | 🇫🇮 Helsinki | 398 | 2005 |
| 9 | [Telia Cygate Oy](https://www.tamtam.ai/c/telia-cygate-oy) (telia.fi)<br>Provides secure ICT solutions and services to customers, leveraging expertise in cybersecurity, data networks, data centers, and cloud technologies. | IT Services and IT Consulting | 🇫🇮 Helsinki | 393 |  |
| 10 | [Oy Apotti Ab](https://www.tamtam.ai/c/oy-apotti-ab) (apotti.fi)<br>This company created the world's first joint information and management system for social and healthcare, in collaboration with Uusimaa municipalities and HUS | IT Services and IT Consulting | 🇫🇮 Helsinki | 391 | 2015 |
| 11 | [Cinia](https://www.tamtam.ai/c/cinia) (cinia.fi)<br>We specialize in networking, connectivity, software development, and cybersecurity to protect against critical threats, shaping the future through innovation | IT Services and IT Consulting | 🇫🇮 Helsinki | 381 |  |
| 12 | [Nitor](https://www.tamtam.ai/c/nitor) (nitor.com)<br>We specialize in sustainable digital development, coaching, and training, helping clients seize present opportunities to build a successful future | IT Services and IT Consulting | 🇫🇮 Helsinki | 339 | 2007 |
| 13 | [Tietokeskus](https://www.tamtam.ai/c/tietokeskus) (tietokeskus.fi)<br>Finnish ICT company specializing in IT services, equipment, consulting, cloud, data center, and network solutions for businesses and public sector | IT Services and IT Consulting | 🇫🇮 Helsinki | 289 | 1989 |
| 14 | [Loihde Trust](https://www.tamtam.ai/c/loihde-trust) (loihdetrust.com)<br>The company provides comprehensive business security solutions, from physical to cyber security, secure networks, and identity and access management services, enhancing competitiveness | Security and Investigations | 🇫🇮 Helsinki | 282 |  |
| 15 | [Sarastia Oy](https://www.tamtam.ai/c/sarastia-oy) (sarastia.fi)<br>A service center collectively owned by municipalities, municipal companies, and well-being regions, serving various clients across Finland with payroll, invoicing, and administrative services | Financial Services | 🇫🇮 Helsinki | 253 | 2019 |
| 16 | [Digital Workforce Services Plc](https://www.tamtam.ai/c/digital-workforce-services-plc) (digitalworkforce.com)<br>provides automation technology solutions and AI-driven platforms to improve healthcare workflows, reduce costs, and enhance customer experiences | IT Services and IT Consulting | 🇫🇮 Helsinki | 213 | 2015 |
| 17 | [NetPress GmbH](https://www.tamtam.ai/c/netpress-gmbh) (avidlyagency.com)<br>Leading European marketing technology services provider, dedicated to creativity, sales, and technology, using customer experience as a strategic tool for business growth. | Advertising Services | 🇫🇮 Helsinki | 96 | 1999 |
| 18 | [Exove](https://www.tamtam.ai/c/exove) (exove.com)<br>A team of professionals passionate about creating digital solutions that are seamless, user-friendly, and enjoyable, aiming to defrustrate the digital experience | Software Development | 🇫🇮 Helsinki | 81 | 2006 |
| 19 | [Wunderdog](https://www.tamtam.ai/c/wunderdog) (wunderdog.io)<br>A consulting agency founded in 2014, focused on building scalable digital businesses through high-quality code, design, and sustainable practices | Software Development | 🇫🇮 Helsinki | 60 | 2014 |
| 20 | [Movial](https://www.tamtam.ai/c/movial) (movial.com)<br>Global software engineering and design services specializing in mobile and embedded devices, multimedia, communications systems, business critical applications, and trusted mobile development | Software Development | 🇫🇮 Helsinki | 55 | 2001 |
| 21 | [SprintIT](https://www.tamtam.ai/c/sprintit) (sprintit.fi)<br>A company revolutionizing the software market by offering top open source applications to enhance businesses, with a focus on ERP solutions | Software Development | 🇫🇮 Helsinki | 50 | 2014 |
| 22 | [ONEiO](https://www.tamtam.ai/c/oneio) (oneio.cloud)<br>An AI-powered iPaaS solution automating integration processes for organizations seeking seamless collaboration and data exchange across their IT ecosystem | Software Development | 🇫🇮 Helsinki | 47 | 2011 |
| 23 | [s4access](https://www.tamtam.ai/c/s4access) (s4access.com)<br>Innovative SAP access security solutions provider, with over 20 years of experience and a focus on adopting cutting-edge technology to simplify access management challenges | IT Services and IT Consulting | 🇫🇮 Helsinki | 36 | 2021 |
| 24 | [Nomis Oy](https://www.tamtam.ai/c/nomis-oy) (nomis.fi)<br>Finnish ICT organization providing tools and solutions for service and production process management, software development, and expert projects globally | Software Development | 🇫🇮 Helsinki | 25 | 1993 |
| 25 | [IWA Ltd](https://www.tamtam.ai/c/iwa-ltd) (oivan.com)<br>IWA provides digital solutions for businesses, designing and developing web services and mobile apps for a variety of clients and industries | Software Development | 🇫🇮 Helsinki | 17 | 2009 |
| 26 | [Emblica](https://www.tamtam.ai/c/emblica) (emblica.com)<br>Innovative data science team specializing in custom AI & ML solutions for R&D, delivering production grade systems and strategic partnerships for organizations | Software Development | 🇫🇮 Helsinki | 13 | 2015 |
| 27 | [QAutomate Oy](https://www.tamtam.ai/c/qautomate-oy) (qautomate.fi)<br>QAutomate offers cost-efficient and innovative RPA solutions, transferring manual tasks to robots to save time and money for businesses | IT Services and IT Consulting | 🇫🇮 Helsinki | 11 | 2015 |
| 28 | [Circles Consulting](https://www.tamtam.ai/c/circles-consulting) (circles.fi)<br>The company offers digital co-creation services including leadership, service and user experience design, software development, mobile development, and cloud expertise with DevOps | Software Development | 🇫🇮 Helsinki | 11 | 2018 |
| 29 | [Nomovok Ltd.](https://www.tamtam.ai/c/nomovok-ltd) (xoilactv3.club)<br>This company specializes in Open Source software technologies, focusing on embedded Linux for mobile, tablet, automotive infotainment, and also provides cloud services | Software Development | 🇫🇮 Helsinki | 11 | 2001 |
| 30 | [Riimu Solutions](https://www.tamtam.ai/c/riimu-solutions) (riimusolutions.com)<br>A software services company specializing in developing business web applications and mobile solutions with experienced full-stack developers delivering reliable solutions to clients | Software Development | 🇫🇮 Helsinki | 5 | 2019 |

## 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.

## More company lists in Helsinki

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- [Multinational companies in Helsinki](https://www.tamtam.ai/l/multinational-companies-helsinki) (206)
- [SaaS companies in Helsinki](https://www.tamtam.ai/l/saas-companies-helsinki) (91)
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- [Companies with a mobile app in Helsinki](https://www.tamtam.ai/l/companies-with-mobile-app-helsinki) (55)
- [Financial services firms in Helsinki](https://www.tamtam.ai/l/financial-services-firms-helsinki) (54)
- [Public sector organisations in Helsinki](https://www.tamtam.ai/l/public-sector-organisations-helsinki) (49)
- [Professional services firms in Helsinki](https://www.tamtam.ai/l/professional-services-firms-helsinki) (47)
- [Critical infrastructure operators in Helsinki](https://www.tamtam.ai/l/critical-infrastructure-operators-helsinki) (46)
- [Publicly traded companies in Helsinki](https://www.tamtam.ai/l/publicly-traded-companies-helsinki) (45)
- [IT Services and IT Consulting companies in Helsinki](https://www.tamtam.ai/l/it-services-and-it-consulting-companies-helsinki) (44)
- [Financial Services companies in Helsinki](https://www.tamtam.ai/l/financial-services-companies-helsinki) (42)
- [Manufacturers in Helsinki](https://www.tamtam.ai/l/manufacturers-helsinki) (42)
- [Corporate groups and holding companies in Helsinki](https://www.tamtam.ai/l/holding-companies-helsinki) (39)
- [AI companies in Helsinki](https://www.tamtam.ai/l/ai-companies-helsinki) (36)
- [Subscription businesses in Helsinki](https://www.tamtam.ai/l/subscription-businesses-helsinki) (34)
- [Hotel and hospitality groups in Helsinki](https://www.tamtam.ai/l/hospitality-groups-helsinki) (31)
- [Consulting firms in Helsinki](https://www.tamtam.ai/l/consulting-firms-helsinki) (28)
- [Government Administration companies in Helsinki](https://www.tamtam.ai/l/government-administration-companies-helsinki) (28)

## The same list elsewhere in Finland

- [IT services companies in Finland](https://www.tamtam.ai/l/it-services-companies-finland) (88)

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Source: https://www.tamtam.ai/l/it-services-companies-helsinki