Country ranking

Top B2B Companies in Estonia

TrustList ranks 109 companies in Estonia across 5 categories. The biggest lists are IT service providers (30), IT product companies (28) and software development companies (26). Each list below is the top of its full ranking, ordered by rating, review volume and listing quality; no one pays for a position.

The businesses here list work in Ukraine, United States of America, Tallinn and Belarus. 106 of them have written a profile you can read before you get in touch.

What to check before you hire in Estonia

Which legal entity signs, and which country's courts the contract names, since the office you met may not be the company on the invoice
Where your data will actually be stored and processed, and whether that is allowed under the rules you are bound by
Who owns the work: intellectual property assignment has to be valid under the law of the supplier's country, not only yours
The overlap in working hours you will really get, and who is reachable when something breaks at your end of the day
The currency you are billed in, who carries the exchange-rate movement, and what the payment fees add
References from clients in your own market, not only in the supplier's: the ones who had to manage the distance
How the relationship ends: notice, handover of code, credentials and data, and what happens to staff assigned to you

Each section below is the top of that category's own ranking for Estonia, so the two pages can never disagree. At the top of the largest of them, IT service providers, right now: Proekspert AS, Cybernetica and Bamboo Group OÜ.

Top IT service providers in Estonia

Top 5 of 30 ranked

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Proekspert AS
Artificial Intelligence - AI · IT Services · Software Development
Proekspert AS is an Estonian software company founded in 1993. It builds software for makers of connected devices and industrial machinery.
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Why #1: Based in Estonia · Founded 1993, as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.
Cybernetica
IT Services · IT Security · Network Security
Cybernetica is an Estonian technology company that builds secure systems for governments and enterprises.
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Why #2: Based in Estonia · In business 30+ years, as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.
Bamboo Group OÜ
Mobile App Development · Web Design · Web Development
Bamboo Group OÜ is a privately owned group of technology companies headquartered in Tallinn, Estonia.
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Why #3: Based in Tallinn, Estonia · Founded 2002, as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.
ByteLife Solutions
IT Services · IT Security · Network Security
ByteLife Solutions is an Estonian company that designs, installs, secures and maintains IT infrastructure.
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Why #4: Based in Estonia · Founded 2005, as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.
Arias & Thompson
Web Design · Web Development · eCommerce · Also in United Kingdom
Arias & Thompson is a digital consultancy led by two principals, Ian Thompson and Maria Paula Arias, working with a team of freelancers.
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Why #5: Based in studio in Estonia, with home bases in Qatar, Canada and the UK · In business 15+ years, as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.

Top IT product companies in Estonia

Top 5 of 28 ranked

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FoodDocs
IT Services · Software Development · IT Solution
FoodDocs is a food safety dashboard for businesses that handle food. It keeps required documents and routine obligations organised so that nothing is missed.
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Messente Communications
Mobile App Development · Web Design · IT Services
Messente Communications provides a messaging platform that lets businesses reach customers by text and chat apps.
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Moderan
IT Services · Software Development · IT Solution
Moderan is web-based software for managing commercial real estate leases and reporting on property portfolios.
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Turnit
Mobile App Development · Web Design · UI/UX Design
Turnit is a travel technology company serving ground passenger transport. It is headquartered in Estonia and has more than twenty years in the field.
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Veriff
IT Services · Software Development · IT Solution
Veriff provides identity verification software for online businesses. It confirms that customers are who they say they are while they sign up.
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Top software development companies in Estonia

Top 5 of 26 ranked

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Helmes AS
Mobile App Development · Web Design · Web Development
Helmes AS is an international software house headquartered in Tallinn, Estonia.
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Why #1: Based in Tallinn, Estonia · In business 30+ years, as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.
Agilie
Mobile App Development · Web Design · UI/UX Design · Also in United States of America
Agilie is a software development company that went online on 10 April 2010. It builds web and mobile applications and offers outsourced IT services.
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Why #2: Address in Estonia · Founded 2010 · Team of 60+, as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.
4IRE labs
Mobile App Development · Web Design · Web Development · Also in Ukraine
4IRE labs, also written 4IRE, develops software for banks, fintech companies and other regulated organisations.
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Why #3: Based in Kaupmehe tn 7-120, Tallinn, Harju maakond, EE, 10114 · Founded 2010, as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.
Roobykon Software
Custom Software Development · Web Design · Web Development · Also in United States of America
Roobykon Software has built online marketplaces since it was founded in 2011.
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Why #4 (shared): Based in Sepapaja 6, Tallinn, EE, 15551 · Founded 2011, as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.
Lifeisgoodlabs
Business Services · Education
Lifeisgoodlabs is a software development studio based in Tallinn, Estonia.
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Why #4 (shared): Based in Tallinn, Estonia · In business 15+ years, as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.

Top app development companies in Estonia

Top 5 of 16 ranked

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EUREKA Bespoke IT Solutions
Android · PHP · IoT · Also in Lithuania
Eastern European custom software developer serving startups and large companies in e-commerce, finance, health and education
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Why #1: Office in Estonia · In business 10+ years · Team of 230+ · Project numbers stated on its own website, as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.
Cone Center
Cloud · Also in Tallinn
Cone Center is a Tallinn software house that writes operating systems for cargo terminals handling Ro-Ro, container and mixed freight.
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Why #2: Based in Tallinn, Estonia · Founded 1993, as stated on its own website, read 28 Sept 2026
Not yet on record: client reviews, vetting.
Flawless Group
Financial Services · Business Services · eCommerce
Flawless Group develops software for multi-level marketing (MLM) businesses and has been building such systems since 2004.
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Why #3: Address in Estonia · Founded 2004, as stated on its own website, read 29 Sept 2026
Not yet on record: client reviews, vetting.
Cleveroad
Mobile App Development · Custom Software Development · Web Design · Also in Ukraine
Cleveroad is a software development company that builds mobile apps, web platforms and other custom systems.
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Why #4: Office in Estonia · In business 15+ years, as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.
DigitalKwarts OÜ
Arts, Entertainment & Music · Business Services · eCommerce · Also in Republic
DigitalKwarts OÜ is an independent product studio in Tallinn, Estonia.
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Why #5: Based in Tallinn, Estonia · Founded 2017, as stated on its own website, read 29 Sept 2026
Not yet on record: client reviews, vetting.

Top cybersecurity companies in Estonia

Top 5 of 9 ranked

See all 9

Hacken
E-Commerce Development · IT Security · Network Security
Hacken is a security auditor for the Web3 world, checking the code behind blockchain projects for weaknesses.
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OMVAPT
IT Services · IT Security · Network Security
OMVAPT is an information security firm whose name stands for vulnerability assessment and penetration testing.
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Skudo OÜ
IT Services · IT Solution · E-Commerce Development
Skudo OÜ develops hardware security for communication links. Its work is built on FPGA chips, where cryptographic functions run directly in hardware rather than in general-purpose…
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CybExer Technologies
IT Services · IT Security · Network Security
CybExer Technologies is an Estonian cybersecurity company that provides cyber range environments, where organisations practise defence and test their systems without risk to live…
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Keystroke DNA
IT Services · Software Development · IT Solution
Keystroke DNA is a behavioural biometric authentication service. It studies how a person types and builds a unique profile from the rhythm of their keystrokes.
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How is this ranking worked out?

A position here is earned, never bought. It is worked out from what a firm publishes and what has been verified about it:

Profile completeness: the details a buyer needs to judge a firm: what it does, who it serves, how it prices, who it has worked for
Earned trust: verification, awards and the other checks a firm has actually passed
Client reviews, where they exist: the rating is smoothed, so one five-star review cannot outrank a firm with a hundred good ones, and volume counts with diminishing returns

Be clear about the third one: client reviews are still rare across this catalogue, so on most lists today the order is set by the first two. A firm near the top is the best-documented and best-verified one we hold, which is not the same claim as the best one to hire. Use the list to build a shortlist, then check the firms yourself.

No firm can pay for a position. Sponsored listings are labelled and shown apart from this list. How rankings work

Where else can I look in Estonia?

Every category ranked here has its own full list: IT service providers (27), IT product companies (23) and software development companies (11). Or compare countries from the country index.

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