Companies · category

Top IT Service Providers for JavaScript in Poland

134 IT service providers ranked by rating, review volume and listing quality.

JavaScript spans more ground than any other language on this list. It runs in every browser, on servers through Node, and inside mobile and desktop applications, so a firm listing it may be doing front-end interface work, back-end services, or both.

The useful clarification is which part of the stack, and with what. Front-end work is dominated by a handful of frameworks and the choice affects hiring for years afterwards. Back-end JavaScript competes with other server languages and is chosen for good reasons and bad ones. Ask why they would pick it for your project specifically — a clear answer indicates a team choosing tools, and a vague one indicates a team using whatever they already know.

Want your company here?

Between them, the 134 IT service providers on this page cover web development (127), mobile app development (100), android (94) and iOS app (91). 132 of them have written a profile you can read before you get in touch.

We list more than 100 IT service providers in Poland listed for JavaScript development. The order comes from what each firm publishes and what has been verified about it, never from payment — at the top right now: BitBag, Ivision.pl and sunscrapers.

Before you shortlist, check

Which frameworks they use, and why for your project
Automated tests and code review as standard
Performance and accessibility targets agreed up front
How dependencies are kept up to date after launch

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Black Star Software Sp. z o. o.
Mobile App Development · Web Development · iOS App
Our mission is to support customers in achieving their objectives for IT project sourcing and delivery.
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mInteractive
Mobile App Development · Web Development · iOS App
mDevelopers and interactive are two departments that will take care of your company! Do you need a website? Dedicated IT System? Mobile application?
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Atena Usługi Informatyczne i Finansowe S.A.
Mobile App Development · Web Development · iOS App
We have been part of ERGO Group AG since 2018. We implement large projects for clients from the insurance industry, both Polish and foreign.
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Looksoft
Mobile App Development · Web Development · iOS App
Looksoft is a team of specialists and enthusiasts with many years of experience in the IT solutions market.
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CodiLime
Mobile App Development · Web Development · iOS App
CodiLime helps companies build and transform their network applications by providing expert knowledge and technical teams experienced in building, developing and integrating SDN &…
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Startup Development House
Artificial Intelligence - AI · Mobile App Development · Web Development
We are a custom software and product development company based in Poland.
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ILS Sp. z o.o
Web Development · Web Design · UI/UX Design
We are part of Pelion SA and from the very beginning we support the development of our Business Customers, Companies belonging to Pelion SA, through professional IT care, providing…
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AppUnite Sp. z o.o.
Mobile App Development · Web Development · iOS App
We are a web and mobile development agency that focuses on the high quality of our solutions and establishing long-lasting partnerships with our clients.
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IT.focus
Mobile App Development · Web Development · iOS App
We are IT.focus - a programming company created by experienced coding geeks.
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Netinteractive
Web Design · UI/UX Design · E-Commerce Development
We are NetInteractive - a group of passionate people creating Software Development Agency.
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ALTIMI
Mobile App Development · Web Development · iOS App
Partnership in business - we have been guided by this principle for 15 years.
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ITCraftship
Mobile App Development · Web Development · iOS App
ITCraftship helps software businesses get the right IT competence for their software development teams.
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MCX Systems
Mobile App Development · Web Development · iOS App
The history of our Group is the history of the people who create it and changing times - from 1988 to today, thanks to the use of new technologies, we are building a better and…
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Custom Blockchain Solutions
Artificial Intelligence - AI · Mobile App Development · Web Development
Custom Blockchain Solutions was founded by three professionals, each highly accomplished and experienced in three distinct disciplines; technology architecture, marketing strategy,…
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SAFFRON Sp. z o.o.
Mobile App Development · Web Development · iOS App
Saffron Quality Center is a team of highly qualified testers recruited from the top experts in their fields. Enthusiasm and out-of-the-box approach are our trademarks.
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Smart Mobile House
Artificial Intelligence - AI · Mobile App Development · Web Development
Smart Mobile House ranks among the European leaders in mobile app and web app development.
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Applandeo
Mobile App Development · Web Development · iOS App
We are a software house that has completed over 90 mobile and web projects, making successful collaborations with clients all around the world. We are gradually growing.
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Solwena
Mobile App Development · Web Development · iOS App
Solwena Sp. z o. o. was established in 2016 in Gdańsk as a spin-off of Solwit SA, a specialized software house.
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2Event
Mobile App Development · Web Development · iOS App
The program idea for the acquaintances and travel mates’ search appeared when I was invited as a jury at the HappyFarm event.
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VirtusLab
Mobile App Development · Web Development · iOS App
Modern business relies on software. Through our services & technology, we help the customer achieve more with software – faster.
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Miquido
Mobile App Development · Web Development · iOS App
Miquido excels at building AI-powered apps and web services. We have delivered 100+ digital products for music & video streaming, e-commerce, FinTech, and other industries.
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Apricot Sp. z o.o.
Mobile App Development · Web Development · iOS App
We are a software house specializing in mobile and web application development delivering top-tier solutions for companies of all sizes.
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ANIXE
Web Development · Software Development · IT Services
ANIXE is a technology company founded in 1997. We specialize in delivering high-performance, top-notch sales solutions dedicated to the travel and tourism industry.
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CompatibL
Web Development · UI/UX Design · Software Development
CompatibL is a software vendor specializing in risk, limits, and regulatory capital.
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How is this ranking worked out?

The order comes from what each firm publishes and what has been verified about it, and never from payment:

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

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.

Sponsored listings are labelled and shown apart from this list. How rankings work

Only firms whose profile names Poland are counted here, so a firm that lists a town but no country is not yet included.

Where else can I look?

The same list elsewhere: USA (762) · UK (478) · India (392) · Germany (214).

Other specialisms in Poland: e-commerce (311) · UI/UX design (259) · Android app development (249) · iOS app development (232) · PHP development (159).

Every IT service provider in Poland: the full list.

Every category in Poland: the Poland country page.

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Top IT Service Providers for JavaScript in Poland

Black Star Software Sp. z o. o.

mInteractive

Atena Usługi Informatyczne i Finansowe S.A.

Looksoft

CodiLime

Startup Development House

ILS Sp. z o.o

AppUnite Sp. z o.o.

IT.focus

Netinteractive

ALTIMI

ITCraftship

MCX Systems

Custom Blockchain Solutions

SAFFRON Sp. z o.o.

Smart Mobile House

Applandeo

Solwena

2Event

VirtusLab

Miquido

Apricot Sp. z o.o.

ANIXE

CompatibL