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 Henkilöstöpalvelut Oy and StaffPoint Oy, indicating a robust market for talent management and workforce solutions.
| # | Company | Employees | |||
|---|---|---|---|---|---|
| 1 | 9,343 | ||||
| 2 | 1,630 | ||||
| 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 |
Seure Henkilöstöpalvelut Oyseure.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 |
1,102 | |||
| 6 |
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 | |||
| 7 |
StaffPoint Oystaffpoint.fi
StaffPoint Group focuses on personnel services, training, coaching, and digital/ICT talent recruitment to enhance working life for employees and companies |
912 | |||
| 8 |
Reaktorreaktor.com
A global technology consultancy specializing in designing and building digital products for industry leaders, fostering a high-performing software development culture |
761 | |||
| 9 |
Rantalainen Oyrantalainen.fi
A reliable Finnish financial services group offering modern accounting solutions for businesses with personalized service and a strong national network |
751 | |||
| 10 |
Kiwa Suomikiwa.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 |
710 | |||
| 11 |
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 | |||
| 12 | 677 | ||||
| 13 |
Roschierroschier.com
A leading law firm in the Nordic region advising on international business law and transactions with a strong team of lawyers |
572 | |||
| 14 |
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 | |||
| 15 |
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 | |||
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 |
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 | |||
| 17 |
Tribedo Oytribedo.fi
A vibrant team of approximately 900 finance, office, IT, and accounting professionals valuing a supportive work environment, meaningful tasks, flexibility, and growth opportunities |
418 | |||
| 18 |
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 | |||
| 19 |
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 | |||
| 20 |
Siili Solutionssiili.com
Full-spectrum digital development partner specializing in AI-driven software solutions, combining development skills and industry knowledge to enhance competitiveness. |
398 | |||
| 21 |
Bolt.Workslinktr.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 |
393 | |||
| 22 |
Sustera Groupsustera.com
Expertise in property lifecycle management ensuring buildings maintain condition, extend lifespan, reduce environmental impact, and increase overall value. |
371 | |||
| 23 |
Krogeruskrogerus.com
A diverse team of talented lawyers specializing in transactional, dispute resolution, and regulatory matters across various industries globally |
339 | |||
| 24 |
Hannes Snellmanhannessnellman.com
A dedicated law firm offering a wide range of professional services in areas such as corporate advisory, dispute resolution, finance, and technology |
312 | |||
| 25 |
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 | |||
| 26 |
Boreniusborenius.com
A leading law firm in Finland, providing high-end legal services with a commitment to client success, innovation, and global collaboration |
254 | |||
| 27 |
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 | |||
| 28 | 207 | ||||
| 29 |
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 | |||
| 30 |
NetPress GmbHavidlyagency.com
Leading European marketing technology services provider, dedicated to creativity, sales, and technology, using customer experience as a strategic tool for business growth. |
96 | |||
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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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