Top Javascript Development Companies in Eastern Europe 2026 Rankings & 780 Client Reviews for 79 Service Providers

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Featured Javascript Development Companies
List of the Best Companies for Javascript Development in Eastern Europe
Javascript Development Company Alternatives in Eastern Europe

We have a list of 79 JavaScript development companies in Eastern Europe. This list contains matching case studies and references, 780 customer reviews, hourly rates, team size and much more. Use the appropriate filter options to find the best Javascript Development Company for your business requirements.

Featured Javascript Development Companies

Vention
4.9
107 reviews
AWARD WINNER TOP RATED
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Your project, our commitment Vention is a global software development company headquartered in New York, with European hubs in Berlin and Vienna. For over 20 years, Vention has helped startups, established enterprises, and industry innovators develop custom, scalable software solutions. With a network of more than 3,000 highly qualified technology experts, the company delivers solutions customers around the world ca... Read More
1,001-5,000
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Chudovo OÜ
4.9
78 reviews
AWARD WINNER TOP RATED
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Implementation of complex systems Chudovo is a custom software development company, focused on complex systems implementation. Customers rely on our expertise, appreciate transparency in time, budget, visibility of work progress, and our assistance in achieving their business objectives with high-quality solutions. Our teams follow best development practices and methodologies and apply their experience in such industries as hea... Read More
51-200
> €10,000
€25 - €49
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freshcells systems engineering GmbH
5.0
11 reviews
AWARD WINNER TOP RATED
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Company description: Not available Read More
11-50
> €50,000
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List of the Best Companies for JavaScript Development in Eastern Europe

Systemio Technologies SRL
0.0
0 reviews
Expertise
Focus Areas
JavaScript AJAX Python PHP JSON TypeScript NoSQL SQL REST API
Location: Bucharest, Romania
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Edvantis
0.0
0 reviews
Expertise
Focus Areas
JavaScript Ruby Go C Plus Plus (C++) C Sharp (C#) Python PHP Java TypeScript GraphQL
201-500
> €5,000
€25 - €49
Location: Rzeszów, Poland
Creating Digital Success Together Edvantis is a global software engineering company with over 400 talented professionals operating in Central & Eastern Europe and the USA. We have earned the trust of top-tier companies like Indeed, BigCommerce, Kardex Remstar, Unicepta, TrustRadius, and Modulsystem. By partnering wi... Read More
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Cegeka Romania
4.6
93 reviews
TOP RATED
Expertise
Focus Areas
JavaScript Ruby C Sharp (C#) Python PHP Java SQL
501-1,000
> €1,000
€25 - €49
Location: Bucharest, Romania
In Close Cooperation Cegeka is a European, family-owned technology services provider headquartered in Belgium. More than 6,000 people work across its 12 European countries, including around 900 IT specialists based in our offices in Romania and the Republic of Moldova. Working Together with over 100 customers, Cegeka... Read More
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Code Provider
5.0
26 reviews
TOP RATED
Expertise
Focus Areas
JavaScript PHP
11-50
> €10,000
€25 - €49
Location: Wrocław, Poland
PHP Software House We’re a PHP-focused software company with more than two decades of experience assembling development teams and creating, deploying, and supporting web applications and services. What started as a small IT business has since grown into part of the Provider Group. The group helps companies build a... Read More
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Aprioreo
4.6
133 reviews
TOP RATED
Expertise
Focus Areas
JavaScript Ruby Swift C Plus Plus (C++) C Sharp (C#) XML Python PHP Kotlin Java TypeScript SQL
11-50
€25 - €49
Location: Kyiv, Ukraine
Design & develop sites that achieve business goals We are a web design studio where visual impact meets technical expertise. Using no-code tools, we build distinctive digital experiences tailored to each client. Discover what we do: • We shape concepts from the first spark of an idea through to a polished final product. • We craft responsive web... Read More
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LansoftDev
4.8
66 reviews
TOP RATED
Expertise
Focus Areas
JavaScript C Sharp (C#) Java
51-200
> €50,000
€25 - €49
Location: Gdańsk, Poland
Full-scale product development from idea to market LansoftDev, the technology ally you can rely on For more than 14 years, companies in the United States and Europe have trusted LansoftDev to turn ambitious ideas into fast, scalable digital products. Our solutions are built to help businesses expand sooner, streamline daily operations, and earn... Read More
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FYB Romania
5.0
4 reviews
TOP RATED
Expertise
Focus Areas
JavaScript Redux XML PHP TypeScript SQL GraphQL
11-50
> €1,000
€25 - €49
Location: Bucharest, Romania
We build cutting-edge eCommerce solutions Your complete partner for developing web-based software. More than 19 years of hands-on software engineering experience. Our dedicated, full-stack team creates affordable Magento solutions tailored to your business. We support clients with standard deployments of Magento 2.x editions and a wide r... Read More
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DevRain
4.6
10 reviews
TOP RATED
Expertise
Focus Areas
JavaScript C Plus Plus (C++) C Sharp (C#) Python PHP TypeScript
11-50
> €10,000
€25 - €49
Location: Kyiv, Ukraine
Partnering for innovation We turn innovation into practical progress. Our advisors, engineers, and designers combine their expertise to tackle business needs with modern technology—and help you move confidently through your digital transformation. DevRain enables organizations to achieve their objectives with Azure and ap... Read More
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Ratioweb
5.0
1 review
TOP RATED
Expertise
Focus Areas
JavaScript PHP
11-50
> €25,000
€25 - €49
Location: Wrocław, Poland
Self-organized development Team Ratioweb brings together independent specialists who organize their own work around openness, shared responsibility, a non-hierarchical structure, and democratic decision-making. We aim to create the kind of workplace we would choose for ourselves while delivering bold, inventive IT services. Cus... Read More
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Creative Corner Studio
5.0
14 reviews
TOP RATED
Expertise
Focus Areas
JavaScript C Sharp (C#) XML
11-50
> €10,000
€75 - €99
Location: Sofia, Bulgaria
Webflow Enterprise Partner - Web Design, SEO & GEO Creative Corner Studio is an accredited Webflow Premium Enterprise Partner, backed by more than 50 internal specialists and 350+ delivered projects across seven years. We partner with B2B organizations in SaaS, Healthcare, AI, Finance, and Consulting to create high-growth websites—ones that don’t... Read More
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CodePillow
4.5
21 reviews
TOP RATED
Expertise
Focus Areas
JavaScript Swift C Plus Plus (C++) Python PHP Java Progressive Web App
11-50
> €10,000
€25 - €49
Location: Lviv, Ukraine
⚡️ We turn bright ideas into great products A compact, high-caliber software team bringing solid, hands-on experience across a range of industries. Expertise: Web, Mobile, AI, Blockchain; Services: Strategy, UX/UI Design, Engineering, QA, Support, Advisory. Read More
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APPVERK
3.8
17 reviews
Expertise
Focus Areas
JavaScript PHP Kotlin SQL
51-200
> €50,000
€75 - €99
Location: Poznań, Poland
Digital Transformation Leaders Let’s unlock greater potential for your business. We help companies move through digital transformation with the pace and focus of a start-up. Our specialists bring together strategic consulting, product design, software engineering, and hands-on expertise, supported by lean, agile ways of worki... Read More
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Web Design IASI
4.7
42 reviews
TOP RATED
Expertise
Focus Areas
JavaScript XML Java
1
> €1,000
< €25
Location: Iași, Romania
Web Expert Iasi creates solutions! Based in Iași, Romania, our web design studio builds polished online experiences for businesses that want to stand out. We cover website design, web development, eCommerce, organic SEO, and Google Ads. After more than ten years in the field, we bring together a lively, forward-thinking team with... Read More
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LeanCode
4.8
20 reviews
TOP RATED
Expertise
Focus Areas
JavaScript Swift C Sharp (C#) AJAX Kotlin
51-200
> €50,000
€50 - €74
Location: Warsaw, Poland
Flutter Development Agency for Enterprise LeanCode helps organizations turn ambitious ideas into scalable digital products. As a Google-appointed official Flutter consultant, we bring together more than 80 technology specialists to create software that makes a measurable difference and supports long-term growth. We can support you at ev... Read More
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Eltrino
5.0
8 reviews
TOP RATED
Expertise
Focus Areas
JavaScript PHP SQL
11-50
> €25,000
€50 - €74
Location: Kyiv, Ukraine + 1
Rock your eCommerce! Eltrino is a commerce technology firm that started in 2011, created by former core Magento engineers. We partner with brands to build, refresh, and grow B2C and B2B shopping experiences on Magento / Adobe Commerce and Shopify—ranging from MVP launches to sophisticated multi-store setups. This inc... Read More
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ENDORA
5.0
2 reviews
TOP RATED
Expertise
Focus Areas
JavaScript Python PHP TypeScript
11-50
> €25,000
€25 - €49
Location: Warsaw, Poland
Your eCommerce experts #Magento #PIM #Symfony #Vue We build digital commerce platforms and custom applications that move businesses forward. By mapping your workflows, shaping the right solution, and launching it in the cloud, we transform concepts into working products. Read More
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Website
X-ONE
5.0
19 reviews
TOP RATED
Expertise
Focus Areas
JavaScript PHP TypeScript SQL
11-50
> €50,000
€75 - €99
Location: Poznań, Poland
IT 360° X-ONE creates software built around ambitious ideas. We craft secure, sustainable, high-end custom systems for organizations of every size, using advanced technologies to help them stay ahead across agriculture, manufacturing, logistics, finance, food, and many other fields. As an official Shopwa... Read More
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Kunso
5.0
1 review
TOP RATED
Expertise
Focus Areas
JavaScript Redux TypeScript
2-10
€50 - €74
Location: Ukraine + 2
Strategic engineering for founders ready to scale Kunso stands as a trusted digital transformation partner, helping businesses speed up growth with practical digital roadmaps and software built for real results, including B2B portals, mobile applications, AI assistants, and more. Our Expertise We bring together specialists in product strategy, d... Read More
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Pentalog
5.0
2 reviews
TOP RATED
Expertise
Focus Areas
JavaScript Django C Plus Plus (C++) Node.js Python C Java React Laravel Angular ARCore
1,001-5,000
> €100,000
€50 - €74
Location: Chișinău, Moldova + 6
Your End-to-End Digital Services Partner Build software with people who care as deeply as you do. Pentalog is a worldwide technology services company that helps organizations shape and ship outstanding digital products, partnering with the top 3% of software engineering talent. With Pentalog, you can quickly spin up and scale digital te... Read More
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Solstys
5.0
2 reviews
TOP RATED
Expertise
Focus Areas
JavaScript PHP
2-10
> €10,000
€25 - €49
Location: Romania + 1
SME or startup? we develop your mobile&web apps! Based in Brittany, France, we've spent over 18 years building custom web and mobile applications for businesses, startups, and cloud software providers. Web and progressive web applications (Laravel, PHP, Node.js, Angular, JavaScript...) Mobile apps for cross-platform use (Ionic, Capacitor...)... Read More
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Top Javascript Development Companies in Eastern Europe 2026 Rankings & 780 Client Reviews for 79 Service Providers

Featured Javascript Development Companies

List of the Best Companies for JavaScript Development in Eastern Europe

Systemio Technologies SRL

Edvantis

Cegeka Romania

Code Provider

Aprioreo

LansoftDev

FYB Romania

DevRain

Ratioweb

Creative Corner Studio

CodePillow

APPVERK

Web Design IASI

LeanCode

Eltrino

ENDORA

X-ONE

Kunso

Pentalog

Solstys

JavaScript Development Companies Alternatives in Eastern Europe

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