Country ranking

Top B2B Companies in the Czech Republic

TrustList ranks 239 companies in the Czech Republic across 8 categories. The biggest lists are IT service providers (86), IT product companies (64) and software development companies (33). 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 United Kingdom and Prague. 237 of them have written a profile you can read before you get in touch.

What to check before you hire in the Czech Republic

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 the Czech Republic, so the two pages can never disagree. At the top of the largest of them, IT service providers, right now: ANECT a.s., ALEF NULA, a.s. and Seznam.cz.

Top IT service providers in the Czech Republic

Top 5 of 86 ranked

See all 86

ANECT a.s.
IT Services · E-Commerce Development · IT Solution
ANECT a.s. is an ICT company that began as an infrastructure integrator and now concentrates on IT security, hybrid and cloud services. It has operated for about 25 years.
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Why #1: Office in Czech Republic · In business 25+ years · Team of 150+ · Client numbers stated on its own website, as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.
ALEF NULA, a.s.
Mobile App Development · IT Services · IT Solution
ALEF NULA, a.s. supplies information technology and professional services from the Czech Republic.
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Why #2: Based in Czech Republic · Founded 1994 · Team of 300+, as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.
Seznam.cz
Social Media Marketing · Search Engine Optimization · E-Commerce Development
Seznam.cz is a Czech internet company that operates a web portal and search engine.
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Why #3 (shared): Based in Prague, Czech Republic · Founded 1996 · Team of 900+, as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.
SinnerSchrader
Mobile App Development · Software Development · Web Design · Also in Germany
SinnerSchrader is a German digital agency that designs and develops digital products and services.
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Why #3 (shared): Based in Hamburg, Berlin, Frankfurt, Munich and Prague, according to earlier company text · Founded 1996 · Team of 600+, as stated on its own website, read 6 Oct 2026
Not yet on record: client reviews, vetting.
OKsystem
Mobile App Development · Software Development · Web Design
OKsystem is a Czech information technology company that has operated since 1990, and describes itself as a designer of large application systems for the internet and intranets.
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Why #5: Based in Czech Republic · Founded 1990, as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.

Top IT product companies in the Czech Republic

Top 5 of 64 ranked

See all 64

BizMachine
IT Services · E-Commerce Development · IT Solution
BizMachine supplies business data and tools to sales and marketing teams. Its platform, called Prospector, combines a company database, contact search and sales intelligence.
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Why #1: Based in Pernerova 697/35, Prague, CZ, 186 00 · Founded 2016 · Client numbers stated on its own website, as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.
Elanor spol. s r.o.
IT Services · Software Development · Web Design
Elanor spol. s r.o. is a Czech specialist in payroll and human resources, with branches in several countries of Central and Eastern Europe.
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Why #2: Based in Czech Republic · ISO 9001 · Client numbers stated on its own website, as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.
S
Siemens
Technology company listed here for Polarion, browser-based lifecycle management software for complex product development
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Why #3: Address in Czech Republic · Founded 1847, as stated on its own website, read 28 Sept 2026
Not yet on record: client reviews, vetting.
ARBES Technologies, a.s.
Mobile App Development · Web Design · UI/UX Design
ARBES Technologies, a.s. is a joint-stock software company set up in 1991. It makes systems for banks, investment firms and finance teams.
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Why #4 (shared): Based in London and Prague · Founded 1991, as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.
KARAT Software a.s.
ERP Software Development · Software Development · Web Design
KARAT Software a.s. is a software house with exclusively Czech capital that develops and supplies enterprise information systems.
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Why #4 (shared): Based in Czech Republic · In business 35+ years, as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.

Top software development companies in the Czech Republic

Top 5 of 33 ranked

See all 33

Arcadia
Mobile App Development · Custom Software Development · Software Development · Also in United Kingdom
Arcadia, which presents itself under the name Software Country, is an international technology company providing custom software development and IT outsourcing.
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Why #1: Based in St Petersburg, with offices in the UK, the Czech Republic and Belarus · Founded 1993 · Team of 550+, as stated on its own website, read 6 Oct 2026
Not yet on record: client reviews, vetting.
Etnetera
Mobile App Development · Web Design · UI/UX Design
Etnetera started in 1997, when two university students set up a business to earn extra money.
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Why #2: Based in Prague · Founded 1997 · Team of 150+, as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.
OKsystem
IT Services · Web Design · Web Development
OKsystem is a Czech IT company working since 1990. It writes bespoke software, sells ready-made products that it adapts to a customer, and runs IT training courses.
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Why #3: Based in Czech Republic · Founded 1990, as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.
Profinit
Mobile App Development · Software Development · Web Design
Profinit is a software company from Prague, Czech Republic, that was established in 1998.
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Why #4: Based in Prague, Czech Republic · Founded 1998, as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.
KOMIX s.r.o.
IT Services · Software Development · UI/UX Design
KOMIX s.r.o. is a Czech IT company with a history of about 25 years.
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Why #5: Based in Czech Republic · In business 25+ years, as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.

Top app development companies in the Czech Republic

Top 5 of 17 ranked

See all 17

Happy Tube
Information Technology · Android · HTML5 · Also in Africa and Prague
Happy Tube is a digital content publisher with an office in Prague, Czech Republic. Its site says it has been publishing content since 2006, with games as the main focus today.
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Why #1: Based in Prague, Czech Republic · Founded 2006, as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.
Ackee
Mobile App Development · Web Design · UI/UX Design
Ackee is an app development agency with teams in Prague and Berlin. Since 2012 it has built mobile and web applications and digital products for companies at home and abroad.
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Why #2: Based in Prague and Berlin · Founded 2012, as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.
Dactyl Group s.r.o.
Mobile App Development · Web Design · UI/UX Design
Dactyl Group s.r.o. is a software company in Brno that builds mobile apps and business systems.
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Why #3: Based in Brno · In business 10+ years, as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.
GeekCoders
Bootstrap · FinTech · CSS · Also in Republic
GeekCoders is a young development and design team in Pardubice, Czech Republic, working since 2018.
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Why #4: Based in Pardubice, Czech Republic · Founded 2018, as stated on its own website, read 29 Sept 2026
Not yet on record: client reviews, vetting.
Devx
Mobile App Development · Web Development · iOS App · Also in Nice
Devx is a Czech software company that manages digital product projects end to end, from first analysis through development to continuing support.
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Why #5: Based in Czech Republic, with offices in Třinec and Prague · ISO 27001 · Team of 17+, as stated on its own website, read 28 Sept 2026
Not yet on record: client reviews, vetting.

Top cybersecurity companies in the Czech Republic

Top 5 of 11 ranked

See all 11

TeskaLabs
Mobile App Development · Web Development · iOS App · Also in United Kingdom
TeskaLabs is a software vendor of cybersecurity and data privacy products, with headquarters in London and an office in Prague.
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GREYCORTEX
Artificial Intelligence - AI · E-Commerce Development · IT Security
GREYCORTEX makes network security software, with Mendel as its main product.
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Safetica Technologies s.r.o.
IT Services · Software Development · E-Commerce Development
Safetica Technologies s.r.o. is a Czech software company that makes data protection software.
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Boxtrap Security
IT Services · Software Development · Web Design
Boxtrap Security is a consultancy working in information security.
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ThreatMark
IT Services · E-Commerce Development · IT Security
ThreatMark provides fraud prevention as a service for web and mobile applications.
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Top digital marketing companies in the Czech Republic

Top 5 of 10 ranked

See all 10

Cool Marketing
Social Media Marketing · E-Commerce Development · Digital Marketing
Cool Marketing is a consultancy of senior marketing and public relations specialists.
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ADSpirine
Social Media Marketing · IT Services · E-Commerce Development
ADSpirine describes itself as a platform for online presence and digital marketing.
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Behavee
Artificial Intelligence - AI · IT Services · Software Development
Behavee is a marketing agency based in Prague. It works for e-shops and service providers, and its site says it has more than ten years of experience.
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Enkla Media
Social Media Marketing · Search Engine Optimization · IT Services
Enkla Media is an online publisher that produces sales leads for companies. It runs comparison websites that help consumers choose products and services.
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Crynet Marketing Solutions
Social Media Marketing · Search Engine Optimization · UI/UX Design
Crynet Marketing Solutions is a marketing agency for blockchain and crypto businesses.
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Top big data & BI companies in the Czech Republic

Top 5 of 9 ranked

See all 9

CEOS Data
Mobile App Development · Web Design · UI/UX Design
CEOS Data develops bespoke software and data solutions for businesses. Its work centres on analysing data, building data warehouses and designing business intelligence.
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datasapiens
IT Services · E-Commerce Development · IT Solution
datasapiens builds analytics for retailers and manufacturers. Its main product is Caisy, an AI analyst that answers questions in plain language using the client's own data and aims…
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Sophia Solutions
Document Management System-DMS · IT Services · Software Development
Sophia Solutions is an IT consultancy that focuses on management information and decision-support systems.
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Neit Consulting
IT Services · IT Consulting · IT Outsourcing
Neit Consulting is an information and communications technology consultancy.
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Adastra Czech Republic
Artificial Intelligence - AI · Mobile App Development · Software Development
Adastra Czech Republic is the Czech arm of Adastra, a consultancy that builds digital solutions around data.
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Top artificial intelligence companies in the Czech Republic

Top 5 of 9 ranked

See all 9

Business Logic
E-Commerce Development · Web Development · CRM Development
Business Logic, which trades as Blogic, is a software company from the Czech Republic.
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SentiSquare s.r.o.
Artificial Intelligence - AI · IT Services · E-Commerce Development
SentiSquare s.r.o. analyses written and spoken customer interactions with its own language-independent semantic engine.
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Bulletproof AI
Artificial Intelligence - AI · IT Services · Software Development
Bulletproof AI is a specialist provider working on the safety of machine learning systems.
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Bohemian AI Technologies s.r.o.
Artificial Intelligence - AI · IT Services · Software Development
Bohemian AI Technologies s.r.o. sits between academic research and commercial work.
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DataVision s.r.o.
IT Services · Software Development · Web Design
DataVision s.r.o. is a software company based in Prague, Czech Republic.
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For vendors

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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 the Czech Republic?

Every category ranked here has its own full list: IT service providers (92), IT product companies (56) and software development companies (30). Or compare countries from the country index.

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