The artificial intelligence sector in Helsinki includes a mix of established IT services companies and younger software development firms. Companies such as Tietoevry and Tieto focus on leveraging data-driven opportunities and creating purposeful technology. Cybersecurity is also prominent, with F-Secure Corporation providing consumer products and WithSecure offering outcome-based solutions for mid-market companies. Other notable firms include RELEX Solutions, which provides an AI platform for supply chain operations, and Silo AI, a private AI lab specializing in solutions for smart devices and autonomous vehicles.
A common thread among these companies is their headquarters in Helsinki, indicating a concentrated hub for AI development. The companies range from large groups like Tietoevry with over 9,000 employees to mid-sized firms like Sievo, which offers procurement analytics for large enterprises, and younger companies such as Hostaway, providing vacation rental management software.
| # | Company | Employees | |||
|---|---|---|---|---|---|
| 1 | 9,343 | ||||
| 2 |
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 | |||
| 3 |
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 | |||
| 4 |
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 | |||
| 5 |
Qvantelqvantel.com
Qvantel develops cloud-native Digital BSS for communication service providers, using no/low code technology to enable quick transformation to digital-first companies |
716 | |||
| 6 |
WithSecurewithsecure.com
Provides outcome-based cybersecurity solutions, protecting mid-market companies with AI-powered technologies, human expertise, and co-security services, focusing on privacy and compliance. |
629 | |||
| 7 | 514 | ||||
| 8 |
Stariastaria.com
Tech-enabled financial services company offering solutions in over 40 countries with a focus on smart growth and tailored support for different growth stages |
496 | |||
| 9 | 443 | ||||
| 10 |
Supermetricssupermetrics.com
Supermetrics connects ad and marketing platforms to analytics tools, data warehouses, and AI assistants, with native MCP support. |
423 | |||
| 11 |
Siili Solutionssiili.com
Full-spectrum digital development partner specializing in AI-driven software solutions, combining development skills and industry knowledge to enhance competitiveness. |
398 | |||
| 12 | 381 | ||||
| 13 |
Hostawayhostaway.com
Vacation rental management software for property owners with a range of listings, offering a variety of services to streamline operations globally |
369 | |||
| 14 |
Hoxhunthoxhunt.com
Human risk management platform combining AI and behavioral science for individualized micro-training, helping employees detect and report phishing attacks to lower cybersecurity risk. |
289 | |||
| 15 | 264 | ||||
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 |
One Click LCAoneclicklca.com
A global leader in construction Life-Cycle Assessment and Environmental Product Declaration software for decarbonizing the construction value chain worldwide |
254 | |||
| 17 | 219 | ||||
| 18 |
Digital Workforce Services Plcdigitalworkforce.com
provides automation technology solutions and AI-driven platforms to improve healthcare workflows, reduce costs, and enhance customer experiences |
213 | |||
| 19 |
Modirum Platformsmodirumplatforms.com
Global technology leader providing innovative digital solutions and services in fintech, banking, security, defense, and aerospace industries, focusing on evolution, technological advancement, and security authentication |
207 | |||
| 20 |
LeadDeskleaddesk.com
It provides cloud-based contact center solutions for sales outreach and customer service, serving over 1,000 customers across Europe. |
194 | |||
| 21 |
Happeohappeo.com
Next-gen intranet for managing knowledge and internal communications, offering template-based page builder, integrations, universal search, and high adoption rates for any size company |
130 | |||
| 22 | 82 | ||||
| 23 |
Allsharesallshares.com
Specializing in share plan design and administration, we offer a comprehensive Nordic service package with global online capabilities for companies and participants worldwide |
56 | |||
| 24 |
Snowfoxsnowfox.ai
AI-powered automation for purchase invoice processing and real-time tracking of carbon emissions across the supply chain Streamlining processes and reducing manual work |
54 | |||
| 25 |
Jay Solutionsjaysolutions.com
We provide a cutting-edge solution that integrates financial data for individuals and businesses, simplifying wealth management in a user-friendly format |
48 | |||
| 26 |
AILiveSimailivesim.com
The company provides a state-of-the-art platform merging AI, robotics, and video game technology for simulation training and validation in various industries |
37 | |||
| 27 |
Hypergene Finlandhypergene.com
Provides secure cloud-based SaaS solutions for managing projects, applications, services, and risks with extensive Nordic market experience. |
21 | |||
| 28 |
Kioskedkiosked.com
Global advertising technology company specializing in programmatic in-content advertising to help online media create and monetize high impact ad inventory |
18 | |||
| 29 | 15 | ||||
| 30 | 15 | ||||
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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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