# List of consulting firms in Helsinki

Tamtam tracks 28 consulting firms headquartered in Helsinki. This list ranks all of them by number of employees on LinkedIn, led by Tietoevry, Tieto and Digia Plc. Their median headcount is 371. Half of them were founded in 2005 or later.

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.

🇫🇮 Helsinki · 28 companies · Updated Nov 11, 2026

| # | Company | Industry | Headquarters | Employees | Founded |
|---|---|---|---|---|---|
| 1 | [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 |  |
| 2 | [Tieto](https://www.tamtam.ai/c/tieto-helsinki) (tietoevry.com)<br>The company focuses on leveraging data-driven opportunities to create value for individuals, businesses, and society through software, services, and co-innovation | IT Services and IT Consulting | 🇫🇮 Helsinki | 6,730 | 1968 |
| 3 | [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 |  |
| 4 | [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 |
| 5 | [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 |
| 6 | [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 |
| 7 | [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 |  |
| 8 | [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 |
| 9 | [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 |  |
| 10 | [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 |
| 11 | [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 |
| 12 | [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 |
| 13 | [Cinia](https://www.tamtam.ai/c/cinia) (cinia.fi)<br>We specialize in networking, connectivity, software development, and cybersecurity to protect against critical threats, shaping the future through innovation | IT Services and IT Consulting | 🇫🇮 Helsinki | 381 |  |
| 14 | [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 |  |
| 15 | [Nitor](https://www.tamtam.ai/c/nitor) (nitor.com)<br>We specialize in sustainable digital development, coaching, and training, helping clients seize present opportunities to build a successful future | IT Services and IT Consulting | 🇫🇮 Helsinki | 339 | 2007 |
| 16 | [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 |
| 17 | [Motiva – valtion kestävän kehityksen yhtiö](https://www.tamtam.ai/c/motiva-valtion-kestavan-kehityksen-yhtio) (motiva.fi)<br>A state-owned company accelerating sustainable change by offering information and solutions for resource efficiency and sustainable choices in various sectors | Business Consulting and Services | 🇫🇮 Helsinki | 300 | 1993 |
| 18 | [Tietokeskus](https://www.tamtam.ai/c/tietokeskus) (tietokeskus.fi)<br>Finnish ICT company specializing in IT services, equipment, consulting, cloud, data center, and network solutions for businesses and public sector | IT Services and IT Consulting | 🇫🇮 Helsinki | 289 | 1989 |
| 19 | [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 |
| 20 | [Analyst+](https://www.tamtam.ai/c/analyst) (asiakkaat.osoite.com)<br>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 | 🇫🇮 Helsinki | 117 |  |
| 21 | [Gaia Consulting](https://www.tamtam.ai/c/gaia-consulting) (gaia.fi)<br>A consultancy specializing in sustainable business solutions worldwide, focusing on Energy, Environment, Safety, Strategy, and Innovation to help clients achieve cleaner, safer operations | Business Consulting and Services | 🇫🇮 Helsinki | 95 | 1993 |
| 22 | [Wunderdog](https://www.tamtam.ai/c/wunderdog) (wunderdog.io)<br>A consulting agency founded in 2014, focused on building scalable digital businesses through high-quality code, design, and sustainable practices | Software Development | 🇫🇮 Helsinki | 60 | 2014 |
| 23 | [Spring Advisor](https://www.tamtam.ai/c/spring-advisor) (springadvisor.fi)<br>A management consulting and financial advisory firm solving complex business problems with a unified approach in strategy, performance, and corporate finance | Business Consulting and Services | 🇫🇮 Helsinki | 29 | 2017 |
| 24 | [Kulmia Group](https://www.tamtam.ai/c/kulmia-group) (kulmia.fi)<br>Specialized in customer experience, sales, and leadership development, offering coaching, consulting, research, and recruitment services to leading companies since 2004 | Business Consulting and Services | 🇫🇮 Helsinki | 19 | 2004 |
| 25 | [Aktia Alexander Corporate Finance](https://www.tamtam.ai/c/aktia-alexander-corporate-finance) (alexander.fi)<br>Investment bank in Helsinki, Finland offering advisory services in M&A, capital market transactions, IPOs, and valuation | Financial Services | 🇫🇮 Helsinki | 13 |  |
| 26 | [Circles Consulting](https://www.tamtam.ai/c/circles-consulting) (circles.fi)<br>The company offers digital co-creation services including leadership, service and user experience design, software development, mobile development, and cloud expertise with DevOps | Software Development | 🇫🇮 Helsinki | 11 | 2018 |
| 27 | [MOST Digital Oy](https://www.tamtam.ai/c/most-digital-oy) (digia.com)<br>MOST Digital automates and digitalizes knowledge work, streamlining processes, developing ICT solutions, and leading comprehensive change management for successful implementation | IT Services and IT Consulting | 🇫🇮 Helsinki | 4 | 2016 |
| 28 | [Shift Actions](https://www.tamtam.ai/c/shift-actions) (shiftactions.com)<br>A management consultancy specializing in strategy execution, joint venture development, and turning new ideas into concrete business for industrial companies globally | Business Consulting and Services | 🇫🇮 Helsinki | 3 | 2015 |

## 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

- [The largest companies in Helsinki](https://www.tamtam.ai/l/largest-companies-helsinki) (642)
- [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)
- [Professional services firms in Helsinki](https://www.tamtam.ai/l/professional-services-firms-helsinki) (47)
- [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)
- [Government Administration companies in Helsinki](https://www.tamtam.ai/l/government-administration-companies-helsinki) (28)

## The same list elsewhere in Finland

- [Consulting firms in Finland](https://www.tamtam.ai/l/consulting-firms-finland) (55)

---

Source: https://www.tamtam.ai/l/consulting-firms-helsinki