# The 30 largest IT Services and IT Consulting companies in Tallinn

Tamtam tracks 39 IT Services and IT Consulting companies headquartered in Tallinn. This list ranks the 30 largest by number of employees on LinkedIn, led by Nortal, ELEKS and InfoSys Ltd.. Their median headcount is 173. Half of them were founded in 2009 or later.

This selection of IT Services and IT Consulting companies in Tallinn includes some of the largest firms in the sector. Nortal, with 2206 employees, specializes in digital transformation across multiple regions. ELEKS provides software engineering services to Fortune 500 companies. Kwork operates a platform connecting freelancers with clients, while eu-LISA manages large-scale IT systems for EU border management and asylum policies.

A notable pattern among these companies is their focus on public sector and governmental IT solutions. Registrite ja Infosüsteemide Keskus (RIK) develops and administers public sector IT systems, and Riigi Infosüsteemi Amet (NCSC-EE) is the national competence center for digital infrastructure and cybersecurity.

🇪🇪 Tallinn · 30 companies · Updated Nov 12, 2026

| # | Company | Industry | Headquarters | Employees | Founded |
|---|---|---|---|---|---|
| 1 | [Nortal](https://www.tamtam.ai/c/nortal) (nortal.com)<br>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 | 🇪🇪 Tallinn | 2,206 |  |
| 2 | [ELEKS](https://www.tamtam.ai/c/eleks) (eleks.com)<br>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 | 🇪🇪 Tallinn | 1,952 | 1991 |
| 3 | [InfoSys Ltd.](https://www.tamtam.ai/c/infosys-ltd) (infosys.ee)<br>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 | 🇪🇪 Tallinn | 1,673 | 2003 |
| 4 | [Kwork](https://www.tamtam.ai/c/kwork) (kwork.com)<br>Platform connecting freelancers with clients for business services, offering a quick, secure, and simple way to either offer services or find service providers | IT Services and IT Consulting | 🇪🇪 Tallinn | 1,620 | 2018 |
| 5 | [eu-LISA](https://www.tamtam.ai/c/eu-lisa) (eulisa.europa.eu)<br>Operates and manages large-scale IT systems for EU border management, asylum, migration policies, and criminal records information to ensure interoperability | IT Services and IT Consulting | 🇪🇪 Tallinn | 588 | 2011 |
| 6 | [Yolo Group](https://www.tamtam.ai/c/yolo-group) (login.yolo.com)<br>Innovative leader in gaming, fintech, and blockchain, prioritizing customer experience with diverse products and services worldwide, driving crypto adoption and innovation | IT Services and IT Consulting | 🇪🇪 Tallinn | 550 | 2014 |
| 7 | [Helmes](https://www.tamtam.ai/c/helmes) (helmes.com)<br>Delivering high-quality software solutions efficiently, reducing costs and accelerating time to market through dedicated teams and unique methods | IT Services and IT Consulting | 🇪🇪 Tallinn | 452 | 1991 |
| 8 | [pawaTech](https://www.tamtam.ai/c/pawatech) (pawatech.com)<br>Specializing in crafting tailored iGaming platforms, we lead in industry services to innovate and support profitable ventures in Africa | IT Services and IT Consulting | 🇪🇪 Tallinn | 413 | 2013 |
| 9 | [TravelLine](https://www.tamtam.ai/c/travelline) (travelline.pro)<br>International software company creating management tools and websites for hotels worldwide Over 11000 hotels have streamlined workflow & increased online sales | IT Services and IT Consulting | 🇪🇪 Tallinn | 249 | 2008 |
| 10 | [Cybernetica](https://www.tamtam.ai/c/cybernetica) (cyber.ee)<br>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 | 🇪🇪 Tallinn | 232 | 1997 |
| 11 | [Markit](https://www.tamtam.ai/c/markit) (cdnd.markit.eu)<br>A global IT procurement marketplace helping businesses save time and money by sourcing and comparing prices for IT hardware and accessories | IT Services and IT Consulting | 🇪🇪 Tallinn | 223 | 2003 |
| 12 | [Registrite ja Infosüsteemide 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)<br>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 | 🇪🇪 Tallinn | 213 | 1994 |
| 13 | [Riigi Infosüsteemi Amet // Estonian Information System Authority (NCSC-EE)](https://www.tamtam.ai/c/riigi-infosusteemi-amet-estonian-information-system-authority-ncsc-ee) (ria.ee)<br>National competence center for digital infrastructure, cybersecurity, e-government services, managing Internet network, securing e-elections, and promoting Estonian digital identity globally. | IT Services and IT Consulting | 🇪🇪 Tallinn | 202 | 2011 |
| 14 | [Ridango](https://www.tamtam.ai/c/ridango) (ridango.com)<br>A rapidly growing technology provider, offering intelligent transportation solutions such as account-based ticketing, automated vehicle solutions, and real-time information systems for public transportation | IT Services and IT Consulting | 🇪🇪 Tallinn | 181 |  |
| 15 | [Tervise ja Heaolu Infosüsteemide Keskus // Health and Welfare Information Systems Centre (TEHIK)](https://www.tamtam.ai/c/tervise-ja-heaolu-infosusteemide-keskus-health-and-welfare-information-systems) (tehik.ee)<br>An ICT competence center developing and managing digital solutions in health, social, and work sectors to save time and improve people's well-being | IT Services and IT Consulting | 🇪🇪 Tallinn | 173 | 2017 |
| 16 | [Uptime](https://www.tamtam.ai/c/uptime) (uptime.eu)<br>Provider of custom software solutions since 1992, offering expertise in various technologies to drive efficiency and profitability for global enterprises and small to medium-sized companies | IT Services and IT Consulting | 🇪🇪 Tallinn | 152 | 1992 |
| 17 | [SnoopGame \| Game Testing Company](https://www.tamtam.ai/c/snoopgame-game-testing-company) (snoopgame.com)<br>Specializing in game QA since 2015, we offer flexible, experienced, hardware-friendly, and scalable optimization solutions to help game developers succeed | IT Services and IT Consulting | 🇪🇪 Tallinn | 148 | 2015 |
| 18 | [Onde](https://www.tamtam.ai/c/onde) (onde.app)<br>Onde provides a dispatch platform and apps for ride-hailing services globally, offering tools like passenger and driver apps, payment options, and intelligent order distribution | IT Services and IT Consulting | 🇪🇪 Tallinn | 147 | 2013 |
| 19 | [Trinidad Wiseman](https://www.tamtam.ai/c/trinidad-wiseman) (twn.ee)<br>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 | 🇪🇪 Tallinn | 130 | 2004 |
| 20 | [SRINI](https://www.tamtam.ai/c/srini) (srini.ee)<br>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 | 🇪🇪 Tallinn | 81 | 2018 |
| 21 | [AS Datel](https://www.tamtam.ai/c/as-datel) (datel.eu)<br>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 | 🇪🇪 Tallinn | 80 | 1990 |
| 22 | [Idealogic](https://www.tamtam.ai/c/idealogic) (idealogic.io)<br>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 | 🇪🇪 Tallinn | 65 | 2016 |
| 23 | [Modera](https://www.tamtam.ai/c/modera) (modera.com)<br>Provides a unified platform for automotive manufacturers, importers, and dealers, streamlining the entire sales journey from inquiry to delivery with various digital tools. | IT Services and IT Consulting | 🇪🇪 Tallinn | 55 | 2009 |
| 24 | [Bamboo Group OÜ](https://www.tamtam.ai/c/bamboo-group-ou) (bamboogroup.eu)<br>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 | 🇪🇪 Tallinn | 50 | 2002 |
| 25 | [Arrow ECS Baltic](https://www.tamtam.ai/c/arrow-ecs-baltic) (arrow.com)<br>Global technology enablement company providing end-to-end IT infrastructure solutions, technical expertise, and innovative IT solutions to solve complex business challenges | IT Services and IT Consulting | 🇪🇪 Tallinn | 41 | 1935 |
| 26 | [RIDDEC \| Venture Studio](https://www.tamtam.ai/c/riddec-venture-studio) (riddec.com)<br>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 | 🇪🇪 Tallinn | 27 | 2012 |
| 27 | [Bamboo Apps](https://www.tamtam.ai/c/bamboo-apps) (bambooapps.eu)<br>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 | 🇪🇪 Tallinn | 24 | 2002 |
| 28 | [Inmost](https://www.tamtam.ai/c/inmost) (inmost.pro)<br>Custom software development company specializing in cutting-edge solutions using cloud technology, focusing on robust, scalable applications built on Amazon Web Services | IT Services and IT Consulting | 🇪🇪 Tallinn | 23 | 2015 |
| 29 | [Easy Tech](https://www.tamtam.ai/c/easy-tech) (easy-technologies.com)<br>A FinTech company offering innovative solutions, services, CRM, trading platforms, and business consulting to help new brokers succeed in the industry | IT Services and IT Consulting | 🇪🇪 Tallinn | 23 | 2001 |
| 30 | [DriveX Technologies](https://www.tamtam.ai/c/drivex-technologies) (drivex.io)<br>A vehicle inspection software powered by AI-based visual intelligence that streamlines the process, reduces manual activities, and provides accurate damage reports | IT Services and IT Consulting | 🇪🇪 Tallinn | 18 | 2019 |

## 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 Tallinn

- [The largest companies in Tallinn](https://www.tamtam.ai/l/largest-companies-tallinn) (224)
- [Multinational companies in Tallinn](https://www.tamtam.ai/l/multinational-companies-tallinn) (64)
- [SaaS companies in Tallinn](https://www.tamtam.ai/l/saas-companies-tallinn) (39)
- [Financial Services companies in Tallinn](https://www.tamtam.ai/l/financial-services-companies-tallinn) (29)
- [Software Development companies in Tallinn](https://www.tamtam.ai/l/software-development-companies-tallinn) (26)
- [Critical infrastructure operators in Tallinn](https://www.tamtam.ai/l/critical-infrastructure-operators-tallinn) (25)

## The same list elsewhere in Estonia

- [IT Services and IT Consulting companies in Estonia](https://www.tamtam.ai/l/it-services-and-it-consulting-companies-estonia) (48)

## The same list elsewhere

- [IT Services and IT Consulting companies in the world](https://www.tamtam.ai/l/it-services-and-it-consulting-companies-in-the-world) (23,571)
- [IT Services and IT Consulting companies in Europe](https://www.tamtam.ai/l/it-services-and-it-consulting-companies-in-europe) (11,705)

---

Source: https://www.tamtam.ai/l/it-services-and-it-consulting-companies-tallinn