# The 50 largest professional services firms in Finland

Tamtam tracks 79 professional services firms headquartered in Finland. This list ranks the 50 largest by number of employees on LinkedIn, led by Tieto, Tietoevry and Pöyry. Their median headcount is 632. Half of them were founded in 1992 or later. The most common headquarters are Helsinki (27), Espoo (9) and Tampere (5).

These Finnish professional services firms specialize in IT services, engineering, and consulting. The list includes large established companies like Tieto, which provides software and technology consulting, and Pöyry, a global engineering, design, and advisory firm. Other notable companies are Etteplan, focusing on industrial engineering and technology, and VTT, a leading research and technology company.

A significant number of these firms, such as Tietoevry, Digia Plc, and PwC Finland, are headquartered in Helsinki. Another pattern is the presence of several human resources and staffing companies, including Barona and Seure Henkilöstöpalvelut Oy, indicating a strong support sector for workforce management.

🇫🇮 Finland · 50 companies · Updated Nov 12, 2026

| # | Company | Industry | Headquarters | Employees | Founded |
|---|---|---|---|---|---|
| 1 | [Tieto](https://www.tamtam.ai/c/tieto) (tieto.com)<br>Providing software and technology consulting services focused on creating lasting impact and delivering effective solutions for clients. | Technology, Information and Internet | 🇫🇮 | 12,353 | 1968 |
| 2 | [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 |  |
| 3 | [Pöyry](https://www.tamtam.ai/c/poyry) (poyry.com)<br>Global company with 16,000 experts in engineering, design, and advisory services Committed to shaping the future through innovative solutions | Design Services | 🇫🇮 | 3,966 |  |
| 4 | [Etteplan](https://www.tamtam.ai/c/etteplan) (etteplan.com)<br>Enabling breakthroughs, bringing people and technology together, changing industrial businesses for the better through engineering and technology services. | Industrial Machinery Manufacturing | 🇫🇮 Espoo | 2,954 |  |
| 5 | [VTT](https://www.tamtam.ai/c/vtt) (vttresearch.com)<br>A leading research and technology company in the Nordic countries, offering innovative services and solutions to give partners a competitive edge globally | Research Services | 🇫🇮 Espoo | 2,810 | 1942 |
| 6 | [Solita](https://www.tamtam.ai/c/solita) (solita.fi)<br>Combining technology, data, and human insight to deliver high-quality solutions in consulting, AI, software, analytics, cloud, and integration services. | IT Services and IT Consulting | 🇫🇮 Tampere | 1,763 | 1996 |
| 7 | [Barona](https://www.tamtam.ai/c/barona) (barona.fi)<br>Barona provides freedom and choices for employees and employers, enabling growth through simplicity, courage, and technology | Staffing and Recruiting | 🇫🇮 Helsinki | 1,630 | 1999 |
| 8 | [Sitowise](https://www.tamtam.ai/c/sitowise) (sitowise.com)<br>Creating sustainable and responsible smart cities Providing solutions for everyday life that prioritize sustainability | Civil Engineering | 🇫🇮 Espoo | 1,504 | 1976 |
| 9 | [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 |  |
| 10 | [Granlund](https://www.tamtam.ai/c/granlund) (granlund.fi)<br>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 | Civil Engineering | 🇫🇮 Helsinki | 1,329 | 1960 |
| 11 | [KPMG Finland](https://www.tamtam.ai/c/kpmg-finland) (kpmg.com)<br>Global professional firm providing Audit, Tax, Legal, and Advisory services in 143 countries Over 1800 employees in Finland and Estonia Offers diverse career opportunities | Business Consulting and Services | 🇫🇮 Pl 1037 | 1,168 |  |
| 12 | [Seure Henkilöstöpalvelut Oy](https://www.tamtam.ai/c/seure-henkilostopalvelut-oy) (seure.fi)<br>A public-sector staffing agency specializing in temporary placements, supporting clients in personnel planning and recruitment to ensure quality public services and employee satisfaction | Human Resources Services | 🇫🇮 Helsinki | 1,102 | 1990 |
| 13 | [PwC Finland](https://www.tamtam.ai/c/pwc-finland) (pwc.fi)<br>Building trust, solving significant problems, and helping businesses grow and operate effectively through consulting, tax, legal, and assurance services in a changing environment | Business Consulting and Services | 🇫🇮 Helsinki | 1,054 | 1954 |
| 14 | [A-Insinöörit](https://www.tamtam.ai/c/a-insinoorit) (ains.fi)<br>A Finnish construction engineering and consulting firm, A-Insinöörit creates sustainable environments, offering a range of planning and project management services in various sectors | Civil Engineering | 🇫🇮 Tampere | 957 | 1959 |
| 15 | [StaffPoint Oy](https://www.tamtam.ai/c/staffpoint-oy) (staffpoint.fi)<br>StaffPoint Group focuses on personnel services, training, coaching, and digital/ICT talent recruitment to enhance working life for employees and companies | Human Resources Services | 🇫🇮 Helsinki | 912 | 1971 |
| 16 | [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 |
| 17 | [Sofigate](https://www.tamtam.ai/c/sofigate) (sofigate.com)<br>Experts in business technology, digital transformation, generative AI, and platforms like ServiceNow and Salesforce across multiple European countries. | IT Services and IT Consulting | 🇫🇮 Espoo | 755 | 2003 |
| 18 | [Rantalainen Oy](https://www.tamtam.ai/c/rantalainen-oy) (rantalainen.fi)<br>A reliable Finnish financial services group offering modern accounting solutions for businesses with personalized service and a strong national network | Financial Services | 🇫🇮 Helsinki | 751 | 1972 |
| 19 | [Greenstep](https://www.tamtam.ai/c/greenstep) (greenstep.com)<br>A family-owned company providing comprehensive business services including accounting, payroll, CFO, tax, legal, HR, finance, analytics, sustainability, and L&D Operating globally through a network | Financial Services | 🇫🇮 Espoo | 745 | 2010 |
| 20 | [Citec Group](https://www.tamtam.ai/c/citec-group) (citec.com)<br>The company specializes in industrial and product engineering, technical documentation, and digital solutions on a global scale, impacting lives through innovative projects | Architecture and Planning | 🇫🇮 Vaasa | 738 |  |
| 21 | [Kiwa Suomi](https://www.tamtam.ai/c/kiwa-suomi) (kiwa.com)<br>A global leader in safety, quality, and reliability services across various industries, offering testing, inspection, certification, consulting, and training services Employing over 10,000 people in 40+ countries | Business Consulting and Services | 🇫🇮 Helsinki | 710 |  |
| 22 | [WSP in Finland](https://www.tamtam.ai/c/wsp-in-finland) (wsp.com)<br>A Finnish design and consulting company with 700 experts creating sustainable environments, shaping the built environment, and leveraging a global innovation program | Professional Services | 🇫🇮 Helsinki | 685 |  |
| 23 | [Eezy Oyj](https://www.tamtam.ai/c/eezy-oyj) (eezy.fi)<br>A Finnish company focused on improving working life through staffing, leadership development, recruitment, organizational development, and personnel surveys Publicly traded | Staffing and Recruiting | 🇫🇮 Helsinki | 677 |  |
| 24 | [Elomatic](https://www.tamtam.ai/c/elomatic) (elomatic.com)<br>An international consulting and engineering firm offering expert services and solutions to industries worldwide, focused on sustainable development and enhancing wellbeing | Engineering Services | 🇫🇮 Turku | 645 | 1970 |
| 25 | [Rejlers Finland](https://www.tamtam.ai/c/rejlers-finland) (rejlers.fi)<br>Innovative engineering consultancy firm dedicated to creating a sustainable society and promoting green solutions in industry, construction, energy, and infrastructure projects | IT Services and IT Consulting | 🇫🇮 20 Paikkakuntaa | 632 |  |
| 26 | [Talenom](https://www.tamtam.ai/c/talenom) (talenom.com)<br>A leading accounting firm in Finland offering professional financial administration services to domestic and international companies, listed on the Helsinki Stock Exchange | Accounting | 🇫🇮 Oulu | 611 | 1972 |
| 27 | [Roschier](https://www.tamtam.ai/c/roschier) (roschier.com)<br>A leading law firm in the Nordic region advising on international business law and transactions with a strong team of lawyers | Law Practice | 🇫🇮 Helsinki | 572 | 1936 |
| 28 | [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 |
| 29 | [Staria](https://www.tamtam.ai/c/staria) (staria.com)<br>Tech-enabled financial services company offering solutions in over 40 countries with a focus on smart growth and tailored support for different growth stages | Financial Services | 🇫🇮 Helsinki | 496 | 2003 |
| 30 | [NTT DATA Business Solutions Nordics](https://www.tamtam.ai/c/ntt-data-business-solutions-nordics) (nttdata-solutions.com)<br>NTT DATA Business Solutions drives innovation in SAP solutions, providing advisory, implementation, and managed services to help companies transform and succeed globally | IT Services and IT Consulting | 🇫🇮 Denmark | 478 |  |
| 31 | [Deloitte Finland](https://www.tamtam.ai/c/deloitte-finland) (deloitte.fi)<br>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 | Management Consulting | 🇫🇮 Helsinki | 431 |  |
| 32 | [Tribedo Oy](https://www.tamtam.ai/c/tribedo-oy) (tribedo.fi)<br>A vibrant team of approximately 900 finance, office, IT, and accounting professionals valuing a supportive work environment, meaningful tasks, flexibility, and growth opportunities | Financial Services | 🇫🇮 Helsinki | 418 | 2001 |
| 33 | [FCG Finnish Consulting Group](https://www.tamtam.ai/c/fcg-finnish-consulting-group) (fcg.fi)<br>Partners with municipalities, companies, and communities in multidisciplinary urban planning, competence development, and good governance promotion, creating smooth, safe, and equal everyday life. | Business Consulting and Services | 🇫🇮 Helsinki | 413 | 2005 |
| 34 | [Comatec Group](https://www.tamtam.ai/c/comatec-group) (comatec.fi)<br>Engineering company offering full range of services for product development, from initial studies to maintenance, with expertise tailored to different industries | Engineering Services | 🇫🇮 Tampere | 411 | 1986 |
| 35 | [BDO Finland](https://www.tamtam.ai/c/bdo-finland) (bdo.fi)<br>This company provides high-quality accounting, tax, and advisory services to businesses, government entities, and other organizations in Finland and globally | Accounting | 🇫🇮 Helsinki | 399 | 1992 |
| 36 | [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 |
| 37 | [Bolt.Works](https://www.tamtam.ai/c/bolt-works) (linktr.ee)<br>National staffing agency with expertise in recruiting for various industries such as logistics, construction, hospitality, and office support Innovative 24/7 mobile app available | Staffing and Recruiting | 🇫🇮 Helsinki | 393 | 2006 |
| 38 | [Fluido](https://www.tamtam.ai/c/fluido) (fluidogroup.com)<br>Leading Salesforce consultancy in Europe, providing boutique consulting services to empower businesses through digital transformation, with a focus on customer success and trust | IT Services and IT Consulting | 🇫🇮 Espoo | 390 | 2009 |
| 39 | [Fellowmind \[formerly known as eCraft Oy Ab\]](https://www.tamtam.ai/c/fellowmind-formerly-known-as-ecraft-oy-ab) (fellowmind.fi)<br>European market leader accelerating digital transformation through Microsoft cloud solutions, agile development, integrated platforms, and user adoption to make technology enjoyable and effective | IT Services and IT Consulting | 🇫🇮 Espoo | 388 |  |
| 40 | [Unikie](https://www.tamtam.ai/c/unikie) (unikie.com)<br>A software engineering and innovation company infusing intelligence into machines, vehicles, and industrial solutions to enable clients to thrive in the digital future | IT Services and IT Consulting | 🇫🇮 Tampere | 383 | 2015 |
| 41 | [Sustera Group](https://www.tamtam.ai/c/sustera-group) (sustera.com)<br>Expertise in property lifecycle management ensuring buildings maintain condition, extend lifespan, reduce environmental impact, and increase overall value. | Professional Services | 🇫🇮 Helsinki | 371 |  |
| 42 | [Aspia Suomi](https://www.tamtam.ai/c/aspia-suomi) (aspia.fi)<br>Providing financial, payroll, CFO, tax, legal, and HR services using modern technology to support business growth and management. | Business Consulting and Services | 🇫🇮 Espoo | 362 | 1944 |
| 43 | [ProAgria](https://www.tamtam.ai/c/proagria) (proagria.fi)<br>The leading agricultural expert organization in Finland offering rural business development services, consultation, and animal breeding to Finnish farms and rural SMEs | Business Consulting and Services | 🇫🇮 Vantaa | 356 |  |
| 44 | [Krogerus](https://www.tamtam.ai/c/krogerus) (krogerus.com)<br>A diverse team of talented lawyers specializing in transactional, dispute resolution, and regulatory matters across various industries globally | Legal Services | 🇫🇮 Helsinki | 339 | 1993 |
| 45 | [Wulff Group Plc](https://www.tamtam.ai/c/wulff-group-plc) (wulff.fi)<br>Provides products and services for enhancing work environments, including office supplies, facility management, catering, IT, ergonomics, first aid, air purifiers, and exhibition services across Nordic countries. | Retail Office Equipment | 🇫🇮 Espoo | 320 | 1890 |
| 46 | [Hannes Snellman](https://www.tamtam.ai/c/hannes-snellman) (hannessnellman.com)<br>A dedicated law firm offering a wide range of professional services in areas such as corporate advisory, dispute resolution, finance, and technology | Law Practice | 🇫🇮 Helsinki | 312 | 1909 |
| 47 | [Miltton](https://www.tamtam.ai/c/miltton) (miltton.com)<br>Offers insight and inspiration through multidisciplinary expertise in communications, stakeholder relations, creativity, strategy, and foresight, empowering clients for growth and positive change. | Business Consulting and Services | 🇫🇮 Helsinki | 310 | 2001 |
| 48 | [Borenius](https://www.tamtam.ai/c/borenius) (borenius.com)<br>A leading law firm in Finland, providing high-end legal services with a commitment to client success, innovation, and global collaboration | Legal Services | 🇫🇮 Helsinki | 254 | 1911 |
| 49 | [Integrata](https://www.tamtam.ai/c/integrata) (integrata.fi)<br>Provides intelligent HR and payroll management solutions integrating future technologies to support emotionally intelligent and efficient workplace environments. | Human Resources Services | 🇫🇮 Tampere | 233 | 2008 |
| 50 | [ALM Partners](https://www.tamtam.ai/c/alm-partners) (almpartners.fi)<br>A Finnish company specializing in financial asset and liability management, offering services to improve customer profitability and support key business decisions | Financial Services | 🇫🇮 Helsinki | 213 | 2011 |

## 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 12, 2026.

## More company lists in Finland

- [The largest companies in Finland](https://www.tamtam.ai/l/largest-companies-finland) (1,471)
- [Multinational companies in Finland](https://www.tamtam.ai/l/multinational-companies-finland) (431)
- [Companies with in-house R&D in Finland](https://www.tamtam.ai/l/r-and-d-companies-finland) (177)
- [Manufacturers in Finland](https://www.tamtam.ai/l/manufacturers-finland) (176)
- [Software Development companies in Finland](https://www.tamtam.ai/l/software-development-companies-finland) (159)
- [SaaS companies in Finland](https://www.tamtam.ai/l/saas-companies-finland) (157)
- [Retail chains in Finland](https://www.tamtam.ai/l/retail-chains-finland) (150)
- [Critical infrastructure operators in Finland](https://www.tamtam.ai/l/critical-infrastructure-operators-finland) (116)
- [Public sector organisations in Finland](https://www.tamtam.ai/l/public-sector-organisations-finland) (115)
- [Hardware manufacturers in Finland](https://www.tamtam.ai/l/hardware-companies-finland) (111)
- [Publicly traded companies in Finland](https://www.tamtam.ai/l/publicly-traded-companies-finland) (110)
- [Companies with a mobile app in Finland](https://www.tamtam.ai/l/companies-with-mobile-app-finland) (102)
- [IT Services and IT Consulting companies in Finland](https://www.tamtam.ai/l/it-services-and-it-consulting-companies-finland) (101)
- [IT services companies in Finland](https://www.tamtam.ai/l/it-services-companies-finland) (88)
- [Corporate groups and holding companies in Finland](https://www.tamtam.ai/l/holding-companies-finland) (84)
- [Education providers in Finland](https://www.tamtam.ai/l/education-companies-finland) (82)
- [Government Administration companies in Finland](https://www.tamtam.ai/l/government-administration-companies-finland) (77)
- [Financial services firms in Finland](https://www.tamtam.ai/l/financial-services-firms-finland) (73)
- [Hotel and hospitality groups in Finland](https://www.tamtam.ai/l/hospitality-groups-finland) (69)
- [Family-owned companies in Finland](https://www.tamtam.ai/l/family-owned-companies-finland) (69)
- [AI companies in Finland](https://www.tamtam.ai/l/ai-companies-finland) (62)
- [Financial Services companies in Finland](https://www.tamtam.ai/l/financial-services-companies-finland) (62)
- [Subscription businesses in Finland](https://www.tamtam.ai/l/subscription-businesses-finland) (57)
- [Consulting firms in Finland](https://www.tamtam.ai/l/consulting-firms-finland) (55)

## The same list elsewhere in Finland

- [Professional services firms in Helsinki](https://www.tamtam.ai/l/professional-services-firms-helsinki) (47)

## The same list elsewhere

- [Professional services firms in the world](https://www.tamtam.ai/l/professional-services-firms-in-the-world) (24,737)
- [Professional services firms in Europe](https://www.tamtam.ai/l/professional-services-firms-in-europe) (13,698)

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Source: https://www.tamtam.ai/l/professional-services-firms-finland