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Top IT Service Providers for .NET in Poland

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

Between them, the 133 IT service providers on this page cover web development (125), PHP (119), eCommerce (115) and iOS app (108). 131 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 .NET development. The order comes from what each firm publishes and what has been verified about it, never from payment — at the top right now: VAO, vm.pl Software House and Civenty.

Before you shortlist, check

Work on current .NET versions, not only legacy .NET Framework
A plan for moving any old .NET Framework code forward
Automated tests and deployment you can run yourself
That you own the code and the build pipeline

Filter by fitbudget, engagement, size and more

JMMJ
Mobile App Development · Web Development · iOS App
Founded in 2008, JMMJ specializes in custom-made software design and development.
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Codefia
Web Development · UI/UX Design · E-Commerce Development
We called our agency CODEFIA because we focus mainly on online media. We engage our whole heart and mind in every project.
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Thaumatec
Mobile App Development · Web Development · iOS App
Thaumatec is a development service provider in Embedded Systems, Internet of Things System and connectivity, located in Wrocław, Poland – just 300 kilometers from Berlin, Prague,…
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Vimanet
Mobile App Development · Custom Software Development · Web Development
Vimanet is a software development company specialized in web development and intelligent cloud applications.
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Neoteric
Custom Software Development · Web Development · iOS App
We are a team who decided to challenge the way that most software houses work.
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LOYCON custom software
Mobile App Development · Web Development · iOS App
Loycon is a team of software engineering specialists. Since 2006, we’ve been creating software for the private sector and public administration.
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Appstronauts
Mobile App Development · Web Development · iOS App
Appstronauts is a team of IT passionates who love to help startups reach stars with apps and technologies tailored right to their needs.
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DELTA Solutions
Mobile App Development · Web Development · iOS App
We are a Polish-based IT company specializing in software development and IT consulting services.
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codequest
Mobile App Development · Web Development · iOS App
Codequest is a software development studio specializing in helping entrepreneurs turn ideas into high-quality and innovative software products.
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Qunabu Interactive
Mobile App Development · Web Development · iOS App
Qunabu Interactive was established in 2010 at the initiative of Mateusz Wojczal, eventually achieving the status of the company together with Monika Małachowska.
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Sensi Labs
Mobile App Development · Web Development · iOS App
Every business claims to be remarkable. In this respect, we are not so different.
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Silk Software House
Mobile App Development · Web Development · iOS App
Silk Software House is an agile web & mobile development team building software systems and creating business intelligence solutions for high growth startups and major corporations…
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Ideamotive
Mobile App Development · Web Development · iOS App
Ideamotive is a fast-growing software house based in the heart of Europe, in Warsaw, Poland. We are experts at Web & Mobile technologies and outstanding interactive UX/UI design.
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DeSmart Software House
Mobile App Development · Web Development · iOS App
DeSmart is there for customers from project start-up to product release and maintenance.
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Kogifi Consulting Group
Mobile App Development · Web Development · Web Design
We're Kogifi - Technology Partner for Demanding creations. We're more than traditional software house, we deliver the complete vision of Smart Commerce, Smart Living, and Smart…
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Allegro
Web Development · UI/UX Design · Web Design
Allegro is one of the largest trading companies in Poland and Europe based on modern technologies.
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Craftware Sp. z o.o.
iOS App · UI/UX Design · E-Commerce Development
People of Craftware are our greatest value. To be specific, it is their expertise, commitment, and experience. We share the same values, organization culture, and goals.
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Codest
Web Development · iOS App · UI/UX Design
a software development company that crafts digital products for our partners. Codest’s team has strong skills in making web applications and UX/UI design.
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ASTEK Polska sp. Z o. O.
Mobile App Development · Web Development · iOS App
ASTEK Polska is a branch of the international ASTEK Group founded in 2007, specializing in IT staff outsourcing and implementation of IT projects.
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Apilia Marciniak-Parchimowicz Sp. J.
Mobile App Development · Web Development · iOS App
Need the best people for your next endeavor? Hire experienced, result-driven developers for your software projects, without the overhead cost of an in-house dev team.
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QuantUp Sp. z o.o.
Artificial Intelligence - AI · Mobile App Development · Web Development
Blending business and technological expertise, QuantUp brings AI-driven solutions your company needs to unlock new opportunities–optimizing processes, building new products, and…
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Alioned Agency
Mobile App Development · Web Development · iOS App
We build online stores using Shopify, and regular websites using Webflow. More importantly, we are consultants that can guide you in all Web and eCommerce related issues.
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Synergy Codes
Mobile App Development · Web Development · iOS App
Synergy Codes is an IT company with excellent specialists and experts on board to turn any data into beautifully designed apps.
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Netfully
Mobile App Development · Web Development · iOS App
Netfully is an agile software development company that provides companies like yours with the development resources you need to grow your business.
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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 (714) · India (465) · UK (457) · Germany (222).

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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Everything here links back to the same verified catalogue. Pick your next stop.

Top IT Service Providers for .NET in Poland

JMMJ

Codefia

Thaumatec

Vimanet

Neoteric

LOYCON custom software

Appstronauts

DELTA Solutions

codequest

Qunabu Interactive

Sensi Labs

Silk Software House

Ideamotive

DeSmart Software House

Kogifi Consulting Group

Allegro

Craftware Sp. z o.o.

Codest

ASTEK Polska sp. Z o. O.

Apilia Marciniak-Parchimowicz Sp. J.

QuantUp Sp. z o.o.

Alioned Agency

Synergy Codes

Netfully