# The 25 largest IT services companies in Estonia
Tamtam tracks 25 IT services companies headquartered in Estonia. This list ranks all of them by number of employees on LinkedIn, led by Nortal, ELEKS and InfoSys Ltd.. Their median headcount is 53. Half of them were founded in 2004 or later. The most common headquarters are Tallinn (18).
These Estonian companies are primarily engaged in IT services and software development, with a strong presence of mid-sized firms. Nortal is a digital transformation company, ELEKS provides software engineering services, and InfoSys Ltd. offers software services in various fields including tourism and logistics. BA specializes in design and software studio services, while Civitta is an international consulting firm. Helmes delivers high-quality software solutions.
A common pattern among these companies is their headquarters location. The majority of the firms, including Nortal, ELEKS, and InfoSys Ltd., are based in Tallinn. Civitta and Astro Baltics are notable exceptions, with headquarters in Tartu. This indicates a concentration of IT and software development expertise in Estonia's capital.
πͺπͺ Estonia Β· 25 companies Β· Updated Nov 12, 2026
| # | Company | Industry | Headquarters | Employees | Founded |
|---|---|---|---|---|---|
| 1 | [Nortal](https://www.tamtam.ai/c/nortal) (nortal.com)
A leading digital transformation company with expertise in strategic, data-driven technology, delivering high-impact projects across Europe, the Nordics, the GCC region, and the Americas | IT Services and IT Consulting | πͺπͺ Tallinn | 2,206 | |
| 2 | [ELEKS](https://www.tamtam.ai/c/eleks) (eleks.com)
Trusted partner for software engineering services delivering high tech innovations to Fortune 500 companies and technology challengers with transparency and quality | IT Services and IT Consulting | πͺπͺ Tallinn | 1,952 | 1991 |
| 3 | [InfoSys Ltd.](https://www.tamtam.ai/c/infosys-ltd) (infosys.ee)
InfoSys offers software services in tourism, recreation, servicing, logistics, and development fields with a focus on effective project management and utilizing the latest technology | IT Services and IT Consulting | πͺπͺ Tallinn | 1,673 | 2003 |
| 4 | [BA](https://www.tamtam.ai/c/ba) (bambooapps.eu)
Design & software studio creating exceptional user experiences through design-centric approach, product-first thinking, and full-stack development competence | Software Development | πͺπͺ Tallinn | 932 | 2002 |
| 5 | [Civitta](https://www.tamtam.ai/c/civitta) (civitta.com)
International consulting firm offering a mix of digital and advisory services to public and private clients across the Nordics to Central Asia | Business Consulting and Services | πͺπͺ Tartu | 648 | 2010 |
| 6 | [Helmes](https://www.tamtam.ai/c/helmes) (helmes.com)
Delivering high-quality software solutions efficiently, reducing costs and accelerating time to market through dedicated teams and unique methods | IT Services and IT Consulting | πͺπͺ Tallinn | 452 | 1991 |
| 7 | [Cybernetica](https://www.tamtam.ai/c/cybernetica) (cyber.ee)
Developing cutting-edge technology for digital societies, creating secure and convenient solutions with global impact, specializing in e-governance, information security, and defense industries | IT Services and IT Consulting | πͺπͺ Tallinn | 232 | 1997 |
| 8 | [Registrite ja InfosΓΌsteemide Keskus (RIK) // Centre of Registers and Information Systems](https://www.tamtam.ai/c/registrite-ja-infosusteemide-keskus-rik-centre-of-registers-and-information) (rik.ee)
An experienced developer and administrator of public sector IT-systems, providing innovative e-services for efficient governmental administration, law, and criminal jurisdiction worldwide | IT Services and IT Consulting | πͺπͺ Tallinn | 213 | 1994 |
| 9 | [Trinidad Wiseman](https://www.tamtam.ai/c/trinidad-wiseman) (twn.ee)
Innovative service design and digital transformation firm with a focus on corporate evolution, e-solutions, and collaborations with academia and top software firms | IT Services and IT Consulting | πͺπͺ Tallinn | 130 | 2004 |
| 10 | [SRINI](https://www.tamtam.ai/c/srini) (srini.ee)
A software development company focused on enhancing organizational competitiveness through smart solutions by a team of industry experts with vast experience in global projects | IT Services and IT Consulting | πͺπͺ Tallinn | 81 | 2018 |
| 11 | [AS Datel](https://www.tamtam.ai/c/as-datel) (datel.eu)
Develops e-government systems, earth observation, and geospatial applications. Focuses on digital transformation, real-time awareness, big data, and secure mission-critical solutions. | IT Services and IT Consulting | πͺπͺ Tallinn | 80 | 1990 |
| 12 | [Idealogic](https://www.tamtam.ai/c/idealogic) (idealogic.io)
Custom software development provider specializing in creating iOS/Android applications, DeFi and NFT platforms, blockchain-based apps, and real-time analytic platforms for startups in various niches | IT Services and IT Consulting | πͺπͺ Tallinn | 65 | 2016 |
| 13 | [Avalanche Laboratory](https://www.tamtam.ai/c/avalanche-laboratory) (avalanchelabs.com)
Develops customized software solutions for businesses, offering end-to-end support from analysis, design, and development to data warehousing and IT/business consultancy across various technologies. | Software Development | πͺπͺ Tallinn | 53 | 2017 |
| 14 | [Bamboo Group OΓ](https://www.tamtam.ai/c/bamboo-group-ou) (bamboogroup.eu)
A privately owned technology group offering various products and services in Monetisation, Marketing Solutions, UX/UI, Telecommunications, Automotive industry, Enterprise Security, and more | IT Services and IT Consulting | πͺπͺ Tallinn | 50 | 2002 |
| 15 | [Astro Baltics](https://www.tamtam.ai/c/astro-baltics) (astrobaltics.eu)
Leading energy station and retail software developers in Northern Europe, offering innovative cloud-based payment platform and efficiency-boosting ERP solutions for various industries worldwide | IT Services and IT Consulting | πͺπͺ Tartu | 49 | 1998 |
| 16 | [Flawless Group](https://www.tamtam.ai/c/flawless-group) (flawless.group)
Leading European IT company offering high-quality software development solutions, specializing in various industries and providing expertise in launching successful projects | IT Services and IT Consulting | πͺπͺ City Centre | 45 | 2004 |
| 17 | [Reach-U](https://www.tamtam.ai/c/reach-u) (reach-u.com)
A global provider of custom solutions for telco, security, smart cities, and tourism industries, specializing in data-driven software development and GIS solutions | Software Development | πͺπͺ Tartu | 44 | 1989 |
| 18 | [INTELSYS](https://www.tamtam.ai/c/intelsys) (intelsys.eu)
A company specializing in digital transformation for construction companies, offering end-to-end cloud solutions integrating BIM data with business processes | Software Development | πͺπͺ Tallinn | 40 | 2005 |
| 19 | [WebLab Technology (WLTech.AI)](https://www.tamtam.ai/c/weblab-technology-wltech-ai) (wltech.ai)
A dedicated development team specializing in cloud-native applications, microservices, AI, and automation, helping clients achieve digital leadership through transformative solutions | Software Development | πͺπͺ Tallinn linn | 37 | 2013 |
| 20 | [Singleton](https://www.tamtam.ai/c/singleton) (singleton.ee)
A software and product development boutique focusing on small businesses, offering full stack development, product management, and strategy consulting services | Software Development | πͺπͺ Tartu | 33 | 2015 |
| 21 | [Sonerim](https://www.tamtam.ai/c/sonerim) (sonerim.com)
Software engineering company with expertise in Enterprise, Big Data, Data Science, Machine Learning, and Mobile Apps Headquarters in Estonia, R&D office in Ukraine | Software Development | πͺπͺ Tallinn | 30 | 2015 |
| 22 | [RIDDEC \| Venture Studio](https://www.tamtam.ai/c/riddec-venture-studio) (riddec.com)
Passionate venture studio investing in and launching innovative startups in FinTech, iGaming, HealthTech, and Web3 sectors with industry expertise in various fields | IT Services and IT Consulting | πͺπͺ Tallinn | 27 | 2012 |
| 23 | [Bamboo Apps](https://www.tamtam.ai/c/bamboo-apps) (bambooapps.eu)
Delivers bespoke digital software solutions for connected, autonomous, shared, and electric vehicles, specializing in HMI design, telematics, infotainment, and remote vehicle control. | IT Services and IT Consulting | πͺπͺ Tallinn | 24 | 2002 |
| 24 | [Astarios Labs](https://www.tamtam.ai/c/astarios-labs) (astarios.com)
An IT service and consulting firm specializing in Cybersecurity, software development, and outstaffing, providing skilled engineers for global businesses since 2016 | IT Services and IT Consulting | πͺπͺ Tallinn | 13 | 2018 |
| 25 | [Solutional OΓ](https://www.tamtam.ai/c/solutional-ou) (solutional.ee)
A software engineering company specializing in custom solutions, applying extreme programming principles, direct client communication, and pair programming for improved quality and efficiency | IT Services and IT Consulting | πͺπͺ City Centre | 10 | 2020 |
## 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 Estonia
- [The largest companies in Estonia](https://www.tamtam.ai/l/largest-companies-estonia) (333)
- [Multinational companies in Estonia](https://www.tamtam.ai/l/multinational-companies-estonia) (94)
- [SaaS companies in Estonia](https://www.tamtam.ai/l/saas-companies-estonia) (50)
- [IT Services and IT Consulting companies in Estonia](https://www.tamtam.ai/l/it-services-and-it-consulting-companies-estonia) (48)
- [Financial Services companies in Estonia](https://www.tamtam.ai/l/financial-services-companies-estonia) (35)
- [Software Development companies in Estonia](https://www.tamtam.ai/l/software-development-companies-estonia) (34)
- [Critical infrastructure operators in Estonia](https://www.tamtam.ai/l/critical-infrastructure-operators-estonia) (29)
- [Financial services firms in Estonia](https://www.tamtam.ai/l/financial-services-firms-estonia) (28)
## The same list elsewhere
- [IT services companies in the world](https://www.tamtam.ai/l/it-services-companies-in-the-world) (20,934)
- [IT services companies in Europe](https://www.tamtam.ai/l/it-services-companies-in-europe) (11,376)
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Source: https://www.tamtam.ai/l/it-services-companies-estonia