Your data. Your AI. Sovereign AI consulting. ConSol AI is a bit different from the usual AI consulting. We help companies use modern AI in a sensible way—without letting sensitive data end up uncontrolled in US cloud services or locking it into rigid SaaS platforms. Instead of selling licenses for products and AI buzzwords, we work with our customers to develop practical AI solutions based on open technologies, sovereign infrastructu... Read More
Top Software Development Companies in Eastern Europe 2026 Rankings & 1,931 Client Reviews for 151 Service Providers

We have a list of 151 software development companies in Eastern Europe. This list contains matching case studies and references, 1,931 customer reviews, hourly rates, team size and much more. Use the appropriate filter options to find the best Software Development Company for your business requirements.
Featured Software Development Companies
- 201-500> €1,000€100 - €149
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
1,001-5,000We make your ideas grow! Since 1999, we’ve been developing custom software in Cologne and supporting our clients in digitizing business processes as true partners. Our team of software developers, AI experts, UX designers, and product managers guides clients end to end—starting from the strategic idea, through development, and all the way to long-term operations and ongoing improvement of their software solutions. We... Read More
51-200> €5,000€100 - €149Innovation as a Team We are more than a service provider, we are a partner to our customers. Good source code drives us, because we develop software out of passion. This passion is our core competence. Our employees are experts in their field and pass on their knowledge internally and externally to inspire and encourage others. Through continuous training and certification, we implement our customers' digitalizatio... Read More
51-200> €100,000€100 - €149Implementation 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 - €49We love software ISEO Digital Agency - Experts since 2008. We have developed successful software and apps for over 100 customers in various industries. We accompany companies from the vision to the realization. Whether it's a concrete project idea, the takeover of ongoing digital projects or the development of a shared vision, ISEO is your contact. Successfully implemented over 300 digital projects. Professiona... Read More
11-50> €10,000€75 - €99
List of the Best Software Development Companies in Eastern Europe
Make It Embedded
TOP RATED15% Software Development
1€50 - €74Compiègne, FranceEmbedded Software for automotive Make_It_Embedded helps shape the next wave of automotive technology through advanced embedded-systems work. We take a broad, end-to-end view of vehicle platforms, bringing together development, integration, and security so the result is robust and ready for real-world use. Our team brings proven... Read MoreCloudity
TOP RATED15% Software Development
201-500> €1,000€75 - €99Saint-Herblain, FranceLet us digitize your business! Cloudity is a worldwide Salesforce ally helping companies modernize the way they work through advanced, forward-looking technology. Its expertise spans Salesforce deployments, custom app development built on the ecosystem, and seamless links to other business platforms. Thanks to these solutions,... Read MoreDevRain
TOP RATED20% Software Development
ASP.NET Core .NET Framework Flutter Django Node.js React Angular11-50> €10,000€25 - €49Kyiv, UkrainePartnering 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 MoreX-ONE
TOP RATED35% Software Development
Symfony CakePHP Laravel Angular11-50> €50,000€75 - €99Poznań, PolandIT 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 MoreX2 Labs
TOP RATED25% Software Development
SDL Flutter Node.js React Laravel Angular React Native11-50> €100,000€75 - €99Cluj-Napoca, RomaniaModernize How You Build. Reimagine What You Build. Your Idea, Powered by AI and Experienced Product Teams AI-enabled product and engineering partner | Mobile and web development | Product discovery and prototyping | UI/UX design | QA | AI adoption | Long-term support X2 Labs helps companies create, ship, and grow digital products more quickly by... Read MoreENDORA
TOP RATED20% Software Development
Symfony VueJs React React Native11-50> €25,000€25 - €49Warsaw, PolandYour 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 MoreCustomertimes Corp
TOP RATED20% Software Development
ASP.NET Core React Angular> 10,000> €1,000€100 - €149Kyiv, UkraineSalesforce, Technology, Managed Services & App Dev Customertimes is an international consulting and solutions firm that turns technology into measurable business momentum. Focused on digital change, it helps companies simplify workflows, improve performance, and unlock new growth. Its work spans strategy, implementation, and long-term guidance, g... Read Morecosmonauts.dev | Software House
TOP RATED30% Software Development
11-50> €50,000€75 - €99Warszawa, PolandNext gen company for next gen people. We’re a fully remote, international group of top specialists, building the revolutionary CosmOS platform for business operations. From your very first conversation to the moment the product is deployed in a live production environment, we compress the software delivery cycle—so both time and cost... Read More- We will find the ideal provider for you! Receive top offers individually selected for you free of charge.
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ReSymbio
TOP RATED50% Software Development
Symfony2-10> €10,000€75 - €99Poznań, PolandExperts in digital transformation ReSymbio is a team of specialists with over 10 years of experience in management, software development, and data analytics. We help organizations shape effective IT roadmaps and deliver practical solutions that align with each client’s goals and expectations. Our engineers design and deploy syste... Read MoreKunso
TOP RATED30% Software Development
2-10€50 - €74UkraineStrategic 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 MoreRatioweb
TOP RATED30% Software Development
Symfony Node.js VueJs11-50> €25,000€25 - €49Wrocław, PolandSelf-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 MoreSIENN
TOP RATED40% Software Development
ASP.NET Core Node.js React .NET Core Angular React Native51-200> €25,000€75 - €99Nijmegen, NetherlandsReliable partner in bespoke software development We’ve earned our clients’ confidence by delivering hundreds of initiatives on time, within the agreed budget, and according to scope. In our organization, openness in communication, a professional mindset, and a steadfast focus on quality guide everything we do. As a Product Owner, you’ll have a... Read Moredreambit
TOP RATED20% Software Development
Flutter11-50> €25,000€25 - €49Kyiv, UkraineCross-platform mobile app development DREAMBIT, AI-POWERED MOBILE & WEB PRODUCTS Dreambit is a software product studio helping companies turn ambitious ideas into polished mobile and web experiences with artificial intelligence at the core. Over more than a decade, we have delivered 150+ products, generated 5M+ downloads, and achiev... Read More30% Software Development
51-200> €10,000€100 - €149Lyon, FranceSmart Data Performer Established in 2008, Digital Virgo Group ranks among the world’s top names in mobile payments through carrier billing. For over a decade, the Group has helped telecom operators, merchants, and other clients bring mobile payment services to market, connect them into existing systems, and make them... Read More15% Software Development
.NET Framework Flutter Ruby on Rails Django Node.js VueJs React Laravel Angular React Native11-50> €25,000€25 - €49Brovary, USAFounder-led staff augmentation for SME's UASOFTDEV is a founder-led partner that provides AI-ready dedicated teams and senior software engineers for small and mid-sized companies. We do not see AI as a replacement for experienced engineers. Instead, it helps the right people work at a much higher level. For that reason, every developer... Read MoreSolstys
TOP RATED40% Software Development
Node.js Laravel Angular2-10> €10,000€25 - €49Lannion, FranceSME 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 MoreHyperSense Software
TOP RATED10% Software Development
11-50> €50,000€50 - €74Bucharest, RomaniaProduction AI Agents. Not Demos. HyperSense creates bespoke AI agents that perform in live environments, not just in presentations. We started in 2003, and today our team includes more than 40 people, with headquarters in Bucharest and a U.S. office in Chicago. We deliver AI solutions for tightly regulated sectors including insu... Read MoreOne Beyond
TOP RATED15% Software Development
Node.js .NET Core Angular React Native501-1,000> €100,000€50 - €74Budapest, HungaryAward Winning Bespoke Software Development One Beyond is an award-winning software partner that builds tailored digital solutions. From its headquarters in Farnborough, Hampshire, and specialist engineering hubs in London, Manchester, Madrid, Budapest, and Szeged, the company supports clients with more than 200 professionals worldwide. F... Read More20% Software Development
11-50> €10,000€25 - €49Cluj-Napoca, RomaniaAI Integration Agency, Web Technologies Experts Helping clients shape what comes next in building and technology. A0 We bring together a broad mix of software engineering capabilities, from technical architecture and AI adoption to assembling high-impact teams and shaping workflows that fit the way you operate. Backed by deep expertise and ha... Read More40% Software Development
Node.js VueJs React Angular React Native51-200> €10,000€25 - €49Lviv, UkraineFull Cycle Software Development & IT Outstaffing With a team of more than 124 specialists, Inforce Digital delivers end-to-end software development. We create dependable digital products—and long-term relationships built to grow. Bring ambitious concepts to market as scalable solutions, supported by our capabilities in: Web and mobile applica... Read More
























