# Professional services firms headquartered in Helsinki
Tamtam tracks 47 professional services firms headquartered in Helsinki. This list ranks the 30 largest by number of employees on LinkedIn, led by Tietoevry, Barona and Digia Plc. Their median headcount is 496. Half of them were founded in 1999 or later.
Helsinki's professional services sector is characterized by a mix of large, established firms and mid-sized companies, with a strong emphasis on IT services, human resources, and financial solutions. Companies like Tietoevry, with 9,343 employees, focus on technology to reinvent businesses, while Barona (1,630 employees) provides staffing and recruitment services. Granlund, a civil engineering firm with 1,329 employees, specializes in MEP design and property management, and PwC Finland (1,054 employees) offers consulting, tax, and assurance services.
A notable pattern among these companies is their consistent focus on leveraging technology to enhance business operations and societal functions. Many of the larger firms, such as Tietoevry and Digia Plc, are deeply involved in IT consulting and software development. Additionally, there is a significant presence of human resources and staffing agencies, including Seure Henkilรถstรถpalvelut Oy and StaffPoint Oy, indicating a robust market for talent management and workforce solutions.
๐ซ๐ฎ Helsinki ยท 30 companies ยท Updated Nov 11, 2026
| # | Company | Industry | Headquarters | Employees | Founded |
|---|---|---|---|---|---|
| 1 | [Tietoevry](https://www.tamtam.ai/c/tietoevry) (tieto.com)
Creating purposeful technology to reinvent the world for good, focusing on the future of businesses, societies, and humanity | IT Services and IT Consulting | ๐ซ๐ฎ Helsinki | 9,343 | |
| 2 | [Barona](https://www.tamtam.ai/c/barona) (barona.fi)
Barona provides freedom and choices for employees and employers, enabling growth through simplicity, courage, and technology | Staffing and Recruiting | ๐ซ๐ฎ Helsinki | 1,630 | 1999 |
| 3 | [Digia Plc](https://www.tamtam.ai/c/digia-plc) (digia.com)
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 | ๐ซ๐ฎ Helsinki | 1,392 | |
| 4 | [Granlund](https://www.tamtam.ai/c/granlund) (granlund.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 | Civil Engineering | ๐ซ๐ฎ Helsinki | 1,329 | 1960 |
| 5 | [Seure Henkilรถstรถpalvelut Oy](https://www.tamtam.ai/c/seure-henkilostopalvelut-oy) (seure.fi)
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 | ๐ซ๐ฎ Helsinki | 1,102 | 1990 |
| 6 | [PwC Finland](https://www.tamtam.ai/c/pwc-finland) (pwc.fi)
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 | ๐ซ๐ฎ Helsinki | 1,054 | 1954 |
| 7 | [StaffPoint Oy](https://www.tamtam.ai/c/staffpoint-oy) (staffpoint.fi)
StaffPoint Group focuses on personnel services, training, coaching, and digital/ICT talent recruitment to enhance working life for employees and companies | Human Resources Services | ๐ซ๐ฎ Helsinki | 912 | 1971 |
| 8 | [Reaktor](https://www.tamtam.ai/c/reaktor) (reaktor.com)
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 | ๐ซ๐ฎ Helsinki | 761 | 2000 |
| 9 | [Rantalainen Oy](https://www.tamtam.ai/c/rantalainen-oy) (rantalainen.fi)
A reliable Finnish financial services group offering modern accounting solutions for businesses with personalized service and a strong national network | Financial Services | ๐ซ๐ฎ Helsinki | 751 | 1972 |
| 10 | [Kiwa Suomi](https://www.tamtam.ai/c/kiwa-suomi) (kiwa.com)
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 | ๐ซ๐ฎ Helsinki | 710 | |
| 11 | [WSP in Finland](https://www.tamtam.ai/c/wsp-in-finland) (wsp.com)
A Finnish design and consulting company with 700 experts creating sustainable environments, shaping the built environment, and leveraging a global innovation program | Professional Services | ๐ซ๐ฎ Helsinki | 685 | |
| 12 | [Eezy Oyj](https://www.tamtam.ai/c/eezy-oyj) (eezy.fi)
A Finnish company focused on improving working life through staffing, leadership development, recruitment, organizational development, and personnel surveys Publicly traded | Staffing and Recruiting | ๐ซ๐ฎ Helsinki | 677 | |
| 13 | [Roschier](https://www.tamtam.ai/c/roschier) (roschier.com)
A leading law firm in the Nordic region advising on international business law and transactions with a strong team of lawyers | Law Practice | ๐ซ๐ฎ Helsinki | 572 | 1936 |
| 14 | [Eficode](https://www.tamtam.ai/c/eficode) (eficode.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 | IT Services and IT Consulting | ๐ซ๐ฎ Helsinki | 537 | 2005 |
| 15 | [Staria](https://www.tamtam.ai/c/staria) (staria.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 | Financial Services | ๐ซ๐ฎ Helsinki | 496 | 2003 |
| 16 | [Deloitte Finland](https://www.tamtam.ai/c/deloitte-finland) (deloitte.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 | Management Consulting | ๐ซ๐ฎ Helsinki | 431 | |
| 17 | [Tribedo Oy](https://www.tamtam.ai/c/tribedo-oy) (tribedo.fi)
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 | ๐ซ๐ฎ Helsinki | 418 | 2001 |
| 18 | [FCG Finnish Consulting Group](https://www.tamtam.ai/c/fcg-finnish-consulting-group) (fcg.fi)
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 | ๐ซ๐ฎ Helsinki | 413 | 2005 |
| 19 | [BDO Finland](https://www.tamtam.ai/c/bdo-finland) (bdo.fi)
This company provides high-quality accounting, tax, and advisory services to businesses, government entities, and other organizations in Finland and globally | Accounting | ๐ซ๐ฎ Helsinki | 399 | 1992 |
| 20 | [Siili Solutions](https://www.tamtam.ai/c/siili-solutions) (siili.com)
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 | ๐ซ๐ฎ Helsinki | 398 | 2005 |
| 21 | [Bolt.Works](https://www.tamtam.ai/c/bolt-works) (linktr.ee)
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 | ๐ซ๐ฎ Helsinki | 393 | 2006 |
| 22 | [Sustera Group](https://www.tamtam.ai/c/sustera-group) (sustera.com)
Expertise in property lifecycle management ensuring buildings maintain condition, extend lifespan, reduce environmental impact, and increase overall value. | Professional Services | ๐ซ๐ฎ Helsinki | 371 | |
| 23 | [Krogerus](https://www.tamtam.ai/c/krogerus) (krogerus.com)
A diverse team of talented lawyers specializing in transactional, dispute resolution, and regulatory matters across various industries globally | Legal Services | ๐ซ๐ฎ Helsinki | 339 | 1993 |
| 24 | [Hannes Snellman](https://www.tamtam.ai/c/hannes-snellman) (hannessnellman.com)
A dedicated law firm offering a wide range of professional services in areas such as corporate advisory, dispute resolution, finance, and technology | Law Practice | ๐ซ๐ฎ Helsinki | 312 | 1909 |
| 25 | [Miltton](https://www.tamtam.ai/c/miltton) (miltton.com)
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 | ๐ซ๐ฎ Helsinki | 310 | 2001 |
| 26 | [Borenius](https://www.tamtam.ai/c/borenius) (borenius.com)
A leading law firm in Finland, providing high-end legal services with a commitment to client success, innovation, and global collaboration | Legal Services | ๐ซ๐ฎ Helsinki | 254 | 1911 |
| 27 | [ALM Partners](https://www.tamtam.ai/c/alm-partners) (almpartners.fi)
A Finnish company specializing in financial asset and liability management, offering services to improve customer profitability and support key business decisions | Financial Services | ๐ซ๐ฎ Helsinki | 213 | 2011 |
| 28 | [Bou](https://www.tamtam.ai/c/bou) (bou.co)
A tech-driven brand agency collaborating with over 150 innovative brands in Europe and the US, providing marketing, design, writing, and development services | Advertising Services | ๐ซ๐ฎ Helsinki | 207 | 2018 |
| 29 | [Analyst+](https://www.tamtam.ai/c/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 | Financial Services | ๐ซ๐ฎ Helsinki | 117 | |
| 30 | [NetPress GmbH](https://www.tamtam.ai/c/netpress-gmbh) (avidlyagency.com)
Leading European marketing technology services provider, dedicated to creativity, sales, and technology, using customer experience as a strategic tool for business growth. | Advertising Services | ๐ซ๐ฎ Helsinki | 96 | 1999 |
## 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)
- [Software Development companies in Helsinki](https://www.tamtam.ai/l/software-development-companies-helsinki) (75)
- [Retail chains in Helsinki](https://www.tamtam.ai/l/retail-chains-helsinki) (63)
- [Companies with in-house R&D in Helsinki](https://www.tamtam.ai/l/r-and-d-companies-helsinki) (59)
- [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)
- [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)
- [IT services companies in Helsinki](https://www.tamtam.ai/l/it-services-companies-helsinki) (32)
- [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
- [Professional services firms in Finland](https://www.tamtam.ai/l/professional-services-firms-finland) (79)
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Source: https://www.tamtam.ai/l/professional-services-firms-helsinki