Top 16 Full Stack Development Companies in Europe (2026)

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Full stack development companies in Europe work across the entire web application stack, from frontend interfaces and backend logic to databases, APIs, cloud infrastructure, testing, and deployment. That makes them useful for projects where different parts of the product need to move together rather than being split across several vendors.

The companies in this list cover a mix of new product development, modernization, team augmentation, and long-term software support. Some focus more on complex enterprise systems, while others are better suited to startups, SaaS products, fintech platforms, or custom business applications.

1. Gilzor

Gilzor handles full stack product development for startups and small to medium-sized businesses. For companies looking for full stack development in Europe, their work covers web applications from early product planning through frontend and backend engineering, UI/UX design, quality assurance, release, and continued maintenance. They also help companies validate product ideas before committing to a larger development cycle.

Projects include custom web applications, business platforms, e-commerce products, and systems that connect with external services. Frontend and backend work sits alongside business analysis, technical troubleshooting, QA, and post-launch development, allowing the same team to continue working on a product after its initial release.

Key Facts:

  • Best for: Startups and growing businesses developing complete web products
  • Core services: Full stack development, frontend development, backend development, custom web applications, QA, maintenance
  • Specialization: Full-cycle product development
  • Location: Warsaw, Poland
  • Notable strength: Combining engineering with product planning and post-launch support

Contacts:

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2. Netguru

Netguru provides dedicated full stack development services covering frontend, backend, databases, web development, mobile development, and related cloud work. Its teams build products ranging from MVPs to larger business systems and handle the project from discovery and planning through implementation and handover.

Frontend work includes modern JavaScript frameworks, while backend development covers technologies such as Node.js, Python, and Ruby on Rails. Full stack projects can also include API development, infrastructure, automated testing, product design, and post-launch monitoring. Netguru is based in Poznań, Poland.

Key Facts:

  • Best for: Web products requiring connected frontend and backend delivery
  • Core services: Full stack development, frontend, backend, web applications, mobile development, cloud engineering
  • Specialization: Digital product and web application development
  • Location: Poznań, Poland
  • Notable strength: Full stack teams covering development from discovery through support

Contacts:

  • Website: www.netguru.com
  • E-mail: hello@netguru.com
  • LinkedIn: www.linkedin.com/company/netguru
  • Address: Nowe Garbary Office Center, ul. Male Garbary 9, 61-756 Poznan, Poland

3. OSKI

OSKI manages full stack products and integrations using cross-functional engineering teams. Their developers cover frontend, backend, APIs, cloud platforms, databases, testing, and deployment. Full stack engagements can be delivered through dedicated teams, staff augmentation, or fixed-scope development.

The technical work spans Angular, Vue.js, TypeScript, Python, Ruby, PHP, serverless technologies, and other backend and frontend tools. Projects can include new product builds, integration-heavy applications, cloud systems, and existing software that needs continued development or modernization. Code review, automated testing, performance checks, and security checks are included during delivery.

Key Facts:

  • Best for: Businesses needing full stack teams for new or existing products
  • Core services: Full stack development, frontend, backend, APIs, cloud engineering, QA, DevOps
  • Specialization: Custom software and dedicated engineering teams
  • Location: Tallinn, Estonia
  • Notable strength: Cross-stack development combined with cloud and integration work

Contacts:

  • Website: oski.site
  • E-mail: contact@oski.site
  • LinkedIn: www.linkedin.com/company/oski-solutions
  • Address: Kaupmehe tn 7-120, 10114 Tallinn, Estonia
  • Phone: +48571282759

4. STX Next

STX Next deals with web applications using full stack teams that cover frontend, backend, cloud infrastructure, APIs, databases, testing, and deployment. Their web projects include SaaS platforms, e-commerce systems, enterprise applications, and products with substantial data processing or integration requirements.

Their backend work includes Python, Node.js, and .NET, while frontend teams use React, Angular, Vue.js, and TypeScript. Development can be paired with cloud engineering on AWS, Azure, or Google Cloud, along with DevOps, automated QA, security testing, and modernization of older web systems.

Key Facts:

  • Best for: Complex web applications, SaaS products, and enterprise platforms
  • Core services: Full stack development, web applications, APIs, QA, DevOps, cloud engineering
  • Specialization: Custom software and web application engineering
  • Location: Poznań, Poland, with offices in the UK and Germany
  • Notable strength: Broad backend, frontend, data, and cloud engineering capabilities

Contacts:

  • Website: www.stxnext.com
  • E-mail: business@stxnext.com
  • Instagram: www.instagram.com/stx_next
  • LinkedIn: www.linkedin.com/company/stx-next-ai-solutions
  • Facebook: www.facebook.com/StxNext
  • Address: 10 York Rd, London SE1 7ND, United Kingdom
  • Phone: +44 7887 204459

5. Itexus

Itexus creates full stack applications with frontend and backend engineering teams working on software for financial services and other business sectors. Their full stack developers work with combinations such as .NET with React or Angular and Python with React and Next.js.

Their projects can involve server-side business logic, client-facing interfaces, relational databases, APIs, architecture work, testing, and deployment. The company works with clients in Western Europe and maintains operations in Poland, including full stack engineering roles based there.

Key Facts:

  • Best for: Fintech and business applications with substantial backend requirements
  • Core services: Full stack development, frontend, backend, API development, QA, cloud and DevOps
  • Specialization: Financial software development
  • Location: Poland and Western European markets
  • Notable strength: Full stack engineering for production-grade financial applications

Contacts:

  • Website: itexus.com
  • E-mail: info@itexus.com
  • Instagram: www.instagram.com/itexus.soft
  • LinkedIn: www.linkedin.com/company/itexus
  • Twitter: x.com/ItexusSoft
  • Facebook: www.facebook.com/itexus
  • Address: Żuravia 6/12/lok 766, 00-503, Warszava, Poland

6. Brainhub

Brainhub builds web applications through full stack teams covering frontend, backend, databases, APIs, infrastructure, QA, and deployment. Their development work uses JavaScript, TypeScript, .NET, Node.js, NestJS, React, Next.js, Vue.js, and related web technologies.

A project team can include full stack engineers, QA engineers, DevOps specialists, architects, designers, business analysts, and project managers. Brainhub handles new application development as well as projects where an existing product needs additional engineering capacity or continued technical development.

Key Facts:

  • Best for: Businesses building or extending complex web applications
  • Core services: Full stack engineering, frontend, backend, QA, DevOps, UX/UI
  • Specialization: Web application and software product development
  • Location: Poland
  • Notable strength: Cross-functional teams covering application and infrastructure layers

Contacts:

  • Website: brainhub.eu
  • E-mail: hello@brainhub.eu
  • LinkedIn: www.linkedin.com/company/brainhub-pl
  • Twitter: x.com/Brainhubeu
  • Facebook: www.facebook.com/brainhubapps
  • Address: 25 SE 2nd Ave Ste 550 PMB 1203, Miami, FL 33131, United States
  • Phone: +48 733 707 758

7. A-listware

A-listware provides software development teams that handle frontend and backend work for custom applications, SaaS products, enterprise software, web portals, and internal business platforms. Their development services include product engineering, cloud applications, legacy modernization, testing, and ongoing maintenance.

Full stack delivery can cover interface development, backend logic, infrastructure, UX, and testing within the same engagement. A-listware also supplies dedicated developers and complete development teams that join existing client workflows for longer product roadmaps.

Key Facts:

  • Best for: Companies extending internal development capacity
  • Core services: Full stack development, frontend, backend, SaaS development, cloud applications, maintenance
  • Specialization: Dedicated development teams and custom software
  • Location: United Kingdom and European delivery markets
  • Notable strength: Full stack engineering combined with team augmentation

Contacts:

  • Website: a-listware.com
  • E-mail: info@a-listware.com
  • LinkedIn: www.linkedin.com/company/a-listware
  • Facebook: www.facebook.com/alistware
  • Address: St. Leonards-On-Sea, TN37 7TA, UK
  • Phone: +44 (0)142 439 01 40

8. The Software House

The Software House develops end-to-end web products through teams covering frontend, backend, cloud engineering, product design, and modernization. Its web development work includes new applications as well as systems that need frontend rebuilding, backend development, cloud work, or technical restructuring.

Mainly, their teams work across technologies including JavaScript and PHP ecosystems and combine frontend and backend specialists with cloud expertise. Projects can be delivered by dedicated product teams, with technical leads responsible for architecture and engineering direction.

Key Facts:

  • Best for: Companies developing or modernizing web-based products
  • Core services: Web development, frontend, backend, cloud, product teams, platform modernization
  • Specialization: Custom web software
  • Location: Gliwice and Warsaw, Poland
  • Notable strength: Connected frontend, backend, and cloud delivery

Contacts:

  • Website: tsh.io
  • E-mail: hello@tsh.io
  • Instagram: www.instagram.com/thesoftwarehouse
  • LinkedIn: www.linkedin.com/company/the-software-house
  • Twitter: x.com/RealTSH
  • Facebook: www.facebook.com/TheSoftwareHousePL
  • Address: ul. Dolnych Wałów 8, Gliwice, Poland

9. SoftPro

SoftPro works on custom software with full stack teams working across frontend, backend, web applications, cloud environments, and CMS platforms. Their software development process covers strategy, planning, design, engineering, deployment, and continued technical support.

Frontend development includes React, Vue.js, JavaScript, HTML, and CSS, while backend work includes .NET and the wider Microsoft technology ecosystem. SoftPro also develops applications using React and Node.js and works with AWS and Microsoft Azure for cloud-native systems, migrations, and infrastructure management.

Key Facts:

  • Best for: Microsoft-focused web and business applications
  • Core services: Full stack development, web applications, frontend, backend, cloud development, software support
  • Specialization: Custom software and Microsoft technologies
  • Location: Warsaw, Poland
  • Notable strength: Full stack engineering combined with Azure and .NET development

Contacts:

  • Website: soft-pro.pl
  • Address: Mazowieckie Voivodeship, 13 Erasmus Ciółka St. 401, Warsaw, Poland

10. 10Clouds

10Clouds creates full stack applications for startups, fintech companies, and larger organizations. Their teams work across frontend development, backend engineering, infrastructure, UX/UI, and product delivery, with React used for client-side applications and Python and other backend technologies used for server-side systems.

Full stack projects can include new product development, web application rebuilding, backend services, integrations, and continued optimization after launch. Their engineers can join existing product teams or take responsibility for broader development work covering the application from interface through backend and infrastructure.

Key Facts:

  • Best for: Startups and product teams building web applications
  • Core services: Full stack development, React development, backend engineering, UX/UI, infrastructure, product development
  • Specialization: Custom software and digital product development
  • Location: Warsaw, Poland
  • Notable strength: End-to-end development across frontend, backend, and infrastructure

Contacts:

  • Website: 10clouds.com
  • E-mail: hello@10clouds.com
  • Instagram: www.instagram.com/10clouds
  • LinkedIn: www.linkedin.com/company/10clouds-com
  • Twitter: x.com/10clouds
  • Facebook: www.facebook.com/10Clouds
  • Address: Chmielna 73, 00-801 Warsaw, Poland
  • Phone: +48 573 173 773

11. LENGREO

LENGREO handles full stack web development alongside custom web applications, websites, e-commerce systems, and digital product work. As a rule, their development process covers discovery, business analysis, prototyping, design, implementation, QA, deployment, and continued support.

Frontend and backend development can be combined with API development, cloud-native engineering, DevOps, UX/UI, and automated testing. LENGREO also works on marketing and customer acquisition, giving companies the option to keep technical development and parts of the go-to-market work within one broader engagement.

Key Facts:

  • Best for: Web products connected with broader digital marketing work
  • Core services: Full stack web development, frontend, backend, APIs, QA, DevOps, UX/UI
  • Specialization: Web development and digital marketing
  • Location: Eindhoven, Netherlands
  • Notable strength: Full stack delivery from discovery through ongoing support

Contacts:

  • Website: lengreo.com
  • E-mail: hi@lengreo.com
  • Instagram: www.instagram.com/lengreo.agency
  • LinkedIn: www.linkedin.com/company/lengreo
  • Address: Vrijstraat 9 C/D, 5611 AT Eindhoven, Netherlands
  • Phone: +31 686 147 566

12. SCAND

SCAND develops full stack JavaScript applications with work spanning frontend interfaces, backend services, APIs, databases, authentication, and third-party integrations. Their teams build web applications, single-page applications, enterprise platforms, and systems that need modernization or migration from older technology.

Frontend work includes reusable components, design systems, performance optimization, and responsive interfaces. On the backend, engineers handle server-side business logic, database access, API implementation, authorization, and connections with external software. SCAND works with clients in European Union markets as well as the United States.

Key Facts:

  • Best for: JavaScript-heavy web applications and enterprise platforms
  • Core services: Full stack development, frontend, backend, APIs, SPA development, modernization
  • Specialization: Custom software and JavaScript development
  • Location: European delivery operations
  • Notable strength: End-to-end JavaScript application engineering

Contacts:

  • Website: scand.com
  • E-mail: info@scand.com
  • LinkedIn: www.linkedin.com/company/scand
  • Twitter: x.com/ScandLtd
  • Facebook: www.facebook.com/ScandLtd
  • Address: Zurawia str. 32/34, 512, 00-515, Warsaw, Poland
  • Phone: +1 208 9005392

13. Net-devs

Net-devs offers enterprise software across modern frontend, backend, cloud, and platform technologies. Backend engineering covers .NET, JVM technologies, Node.js, Python, and Go, while frontend teams work with React, Angular, Vue, and TypeScript.

Their projects can include application architecture, wireframing, development, automated and manual testing, CI/CD, cloud-native infrastructure, deployment, and continued iteration. Full stack work is supported by cloud engineering on Azure, AWS, and Google Cloud, with infrastructure-as-code and platform engineering available for systems that need a broader production setup.

Key Facts:

  • Best for: Enterprise applications using mixed frontend, backend, and cloud stacks
  • Core services: Full stack engineering, enterprise development, frontend, backend, cloud and platform engineering
  • Specialization: Enterprise software
  • Location: Warsaw, Poland
  • Notable strength: Broad stack coverage across application and cloud layers

Contacts:

  • Website: net-devs.com
  • E-mail: contact@net-devs.com 
  • LinkedIn: www.linkedin.com/company/net-devs
  • Address: Obrzezna 1D, 02-691 Warszawa
  • Phone: +48 571 282 759

14. Leobit

Leobit provides full stack development across web, mobile, backend systems, and integrations. Its teams work on new products, existing software, SaaS platforms, and applications that require continued development after the first production release.

Development projects can include software architecture, frontend and backend engineering, UI/UX, quality assurance, business analysis, and integration work. Leobit offers dedicated team, project-based, and outstaffing arrangements, allowing companies to use a complete development unit or add specific engineering roles to an internal team.

Key Facts:

  • Best for: Startups and product teams needing flexible engineering capacity
  • Core services: Full stack development, web development, backend, integrations, QA, UI/UX
  • Specialization: Custom product development
  • Location: European development operations
  • Notable strength: Full stack delivery through several team and project models

Contacts:

  • Website: leobit.com
  • E-mail: sales@leobit.com
  • LinkedIn: www.linkedin.com/company/leobit
  • Facebook: www.facebook.com/LeobitLLC
  • Address: 104 Westbourne Terrace, W2, Development Center, London, UK
  • Phone: +1512-399-5386

15. Mobian Studio

Mobian Studio builds software through dedicated engineering teams and full project outsourcing. Their development work covers frontend and backend systems, cloud infrastructure, integrations, product development, testing, and production delivery. The company serves businesses in areas such as IT, healthcare, fintech, and logistics.

Teams can develop new platforms from scratch, add functionality to existing systems, integrate third-party services, or join an internal product team to increase engineering capacity. Mobian operates from Estonia and works with clients across Europe and North America.

Key Facts:

  • Best for: Companies needing dedicated engineering teams or outsourced product delivery
  • Core services: Full stack product development, backend, integrations, cloud infrastructure, QA, maintenance
  • Specialization: Software product engineering
  • Location: Tallinn, Estonia
  • Notable strength: Dedicated teams for building and extending production software

Contacts:

  • Website: mobian.studio
  • E-mail: info@mobian.studio
  • Linkedin: www.linkedin.com/company/mobian-studio
  • Address: Harju maakond, Tallinn, Kesklinna Linnaosa, Masina tn 22, 10113

16. SoftwareMill

SoftwareMill develops full stack and backend-heavy applications for companies working with complex business systems. Their engineering covers frontend interfaces, backend services, APIs, cloud-native applications, databases, data processing, and distributed systems.

Their full stack work combines React and modern frontend frameworks with backend technologies such as Java, Scala, Rust, Node.js, and TypeScript. Teams also handle service-oriented architecture, data streaming, SQL and NoSQL databases, and cloud-based application development. SoftwareMill operates primarily from Poland with distributed engineering teams.

Key Facts:

  • Best for: Complex web platforms and backend-intensive applications
  • Core services: Full stack development, backend engineering, frontend development, APIs, cloud-native applications, data engineering
  • Specialization: High-performance and distributed software systems
  • Location: Poland
  • Notable strength: Full stack development combined with advanced backend and data engineering

Contacts:

  • Website: softwaremill.com
  • E-mail: hello@softwaremill.com
  • Instagram: www.instagram.com/softwaremill_vibes
  • Twitter: x.com/softwaremill
  • Facebook: www.facebook.com/softwaremill
  • Address: ul. Na Uboczu 8/87, 02-791 Warszawa, Poland
  • Phone: +48 22 188 11 33

Conclusion

Full stack development usually works best when the team can handle the product as one connected system, not as separate frontend and backend tasks. That means thinking about interfaces, server logic, databases, integrations, testing, deployment, and maintenance together.

When comparing full stack development companies in Europe, the main differences often come down to project type, technical depth, team model, and experience with existing systems. Some teams are a better fit for new products, while others make more sense for modernization, long-term development, or complex platforms with heavy backend and cloud requirements.

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