These Helsinki-based consulting firms primarily operate in IT services, IT consulting, and professional services, with a notable presence of large and mid-sized companies. Key players include Tietoevry, which focuses on purposeful technology to reinvent businesses and societies, and Digia Plc, a software and service company driving intelligent business and a sustainable future. Granlund specializes in MEP design and property management for real estate, while Reaktor is a global technology consultancy building digital products for industry leaders.
A strong concentration of these firms, such as PwC Finland and Deloitte Finland, offer a broad range of business consulting, tax, and assurance services. The prevalence of companies founded in the early 2000s, like Reaktor (2000), Eficode (2005), and FCG Finnish Consulting Group (2005), indicates a period of significant growth and establishment in the technology and consulting sectors in Helsinki.
| # | 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 | 1,392 | ||||
| 4 |
Granlundgranlund.fi
A Finnish company in the real estate and construction sectors with over 1400 professionals, offering services in MEP design, property management, energy consulting, and more |
1,329 | |||
| 5 |
PwC Finlandpwc.fi
Building trust, solving significant problems, and helping businesses grow and operate effectively through consulting, tax, legal, and assurance services in a changing environment |
1,054 | |||
| 6 |
Reaktorreaktor.com
A global technology consultancy specializing in designing and building digital products for industry leaders, fostering a high-performing software development culture |
761 | |||
| 7 |
WSP in Finlandwsp.com
A Finnish design and consulting company with 700 experts creating sustainable environments, shaping the built environment, and leveraging a global innovation program |
685 | |||
| 8 |
Eficodeeficode.com
A leading DevOps company in Europe driving the DevOps and Agile movement, providing services in DevOps, Agile, continuous delivery, test automation, and software creation |
537 | |||
| 9 |
Deloitte Finlanddeloitte.fi
A global expert organization offering auditing, consulting, risk management, tax, legal advice, and M&A services to help clients succeed worldwide Operating in 150+ countries |
431 | |||
| 10 |
FCG Finnish Consulting Groupfcg.fi
Partners with municipalities, companies, and communities in multidisciplinary urban planning, competence development, and good governance promotion, creating smooth, safe, and equal everyday life. |
413 | |||
| 11 |
BDO Finlandbdo.fi
This company provides high-quality accounting, tax, and advisory services to businesses, government entities, and other organizations in Finland and globally |
399 | |||
| 12 |
Siili Solutionssiili.com
Full-spectrum digital development partner specializing in AI-driven software solutions, combining development skills and industry knowledge to enhance competitiveness. |
398 | |||
| 13 | 381 | ||||
| 14 |
Sustera Groupsustera.com
Expertise in property lifecycle management ensuring buildings maintain condition, extend lifespan, reduce environmental impact, and increase overall value. |
371 | |||
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. | |||||
| 15 | 339 | ||||
| 16 |
Milttonmiltton.com
Offers insight and inspiration through multidisciplinary expertise in communications, stakeholder relations, creativity, strategy, and foresight, empowering clients for growth and positive change. |
310 | |||
| 17 |
Motiva – valtion kestävän kehityksen yhtiömotiva.fi
A state-owned company accelerating sustainable change by offering information and solutions for resource efficiency and sustainable choices in various sectors |
300 | |||
| 18 |
Tietokeskustietokeskus.fi
Finnish ICT company specializing in IT services, equipment, consulting, cloud, data center, and network solutions for businesses and public sector |
289 | |||
| 19 |
ALM Partnersalmpartners.fi
A Finnish company specializing in financial asset and liability management, offering services to improve customer profitability and support key business decisions |
213 | |||
| 20 |
Analyst+asiakkaat.osoite.com
Helsinki consulting boutique offering M&A and financial advisory services to international industrial companies and investors seeking target companies in Finland and the Nordics |
117 | |||
| 21 |
Gaia Consultinggaia.fi
A consultancy specializing in sustainable business solutions worldwide, focusing on Energy, Environment, Safety, Strategy, and Innovation to help clients achieve cleaner, safer operations |
95 | |||
| 22 |
Wunderdogwunderdog.io
A consulting agency founded in 2014, focused on building scalable digital businesses through high-quality code, design, and sustainable practices |
60 | |||
| 23 |
Spring Advisorspringadvisor.fi
A management consulting and financial advisory firm solving complex business problems with a unified approach in strategy, performance, and corporate finance |
29 | |||
| 24 |
Kulmia Groupkulmia.fi
Specialized in customer experience, sales, and leadership development, offering coaching, consulting, research, and recruitment services to leading companies since 2004 |
19 | |||
| 25 |
Aktia Alexander Corporate Financealexander.fi
Investment bank in Helsinki, Finland offering advisory services in M&A, capital market transactions, IPOs, and valuation |
13 | |||
| 26 |
Circles Consultingcircles.fi
The company offers digital co-creation services including leadership, service and user experience design, software development, mobile development, and cloud expertise with DevOps |
11 | |||
| 27 |
MOST Digital Oydigia.com
MOST Digital automates and digitalizes knowledge work, streamlining processes, developing ICT solutions, and leading comprehensive change management for successful implementation |
4 | |||
| 28 |
Shift Actionsshiftactions.com
A management consultancy specializing in strategy execution, joint venture development, and turning new ideas into concrete business for industrial companies globally |
3 | |||
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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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