
TypeScript is widely used for web products that need to stay manageable as features, users, and development teams grow. European development companies work with it across React and Angular frontends, Node.js and NestJS backends, SaaS platforms, enterprise applications, and JavaScript modernization projects. This list focuses on companies with verifiable TypeScript capabilities and a meaningful presence in the European market.

Gilzor works on custom web products for startups, small and mid-sized businesses, and product teams. TypeScript appears on both sides of its web development stack. On the frontend, the company works with React, Next.js, Redux, and related technologies, while backend projects can combine TypeScript with Node.js, NestJS, Express, TypeORM, and Sequelize.
The broader development process also covers UI/UX, business analysis, QA, infrastructure, and support after release. This setup can make sense for companies that want TypeScript development handled as part of the complete product rather than hiring a team for an isolated frontend task. Gilzor lists offices in Warsaw and Limassol.


SysGears has a dedicated TypeScript development practice covering new applications, modernization, and migration from JavaScript. Its frontend stack includes React and Next.js, while server-side TypeScript work uses Node.js, Express, and NestJS. The company also builds TypeScript web applications and offers code modernization and refactoring.
Projects can be delivered through full-cycle development, dedicated teams, or team augmentation. The TypeScript offering extends beyond initial implementation to architecture, QA, deployment, and continuous optimization, making SysGears relevant to businesses that expect an application to keep evolving after the first release.

A-listware combines web development with outsourced engineering and dedicated development teams. TypeScript is listed among the company's core technologies, alongside Node.js, React, Angular, Vue, and Next.js. Its web services cover architecture, frontend and backend engineering, integrations, testing, maintenance, and application support.
The company also recruits for full-stack engineering roles requiring commercial TypeScript experience with Node.js, React, Next.js, NestJS, and Express. That makes its TypeScript capability particularly relevant to businesses looking to extend an existing engineering department rather than outsource every part of the product lifecycle.

Brainhub focuses on digital product and software delivery, with TypeScript forming part of its full-stack web development expertise. Its web teams work with JavaScript, TypeScript, Node.js, NestJS, React, Next.js, Vue.js, databases, cloud infrastructure, and automated testing tools.
The company handles frontend and backend development, API integration, DevOps, security, data persistence, and post-release maintenance within the same delivery process. Its published projects also show TypeScript used alongside React and Node.js, including web, mobile, and modernization work.

OSKI Solutions has a dedicated TypeScript development service and uses the language across React, Angular, Vue.js, Node.js, and .NET environments. Its approach includes full-stack type safety, typed API contracts, frontend development, backend systems, and migration of existing JavaScript applications.
Its wider web development work covers custom websites, portals, web applications, APIs, integrations, and modernization. Published technology coverage includes React, Next.js, Vue.js, Angular, TypeScript, Node.js, NestJS, and Umbraco, giving the company several routes for using TypeScript within existing or new platforms.

EL Passion develops web applications using TypeScript across both frontend and backend environments. Its current web technology stack includes TypeScript, React, Next.js, Node.js, NestJS, AWS, Kubernetes, and Docker. The company works on products from initial technical consultation and MVP development through optimization, scaling, and maintenance of existing code.
TypeScript is also explicitly part of the company's Node.js and full-stack development roles, where it is used with NestJS, React, and Next.js. EL Passion is based in Warsaw and works with clients in Europe and other international markets.

Lengreo provides web development for B2B companies, including custom applications, APIs, hybrid mobile products, cloud-native systems, and technology stack updates. Its web development team primarily works with React.js and Node.js while also maintaining TypeScript and Next.js expertise.
The development process covers discovery, wireframing, product development, deployment, and later refinement. For custom web applications, the company's published technology mix includes React, Node.js, Laravel, TypeScript, Next.js, Ruby, and Ruby on Rails.

Apiko provides a dedicated TypeScript development service covering full-cycle application development, enterprise platforms, JavaScript migration, backend systems, frontend interfaces, and automated testing. The company positions TypeScript as a technology for both new products and larger applications where maintainability becomes increasingly important.
Its published project work includes TypeScript with React, NestJS, GraphQL, Prisma, Jest, Cypress, and AWS. This combination makes Apiko relevant to companies building applications where the same TypeScript-oriented engineering approach needs to extend across UI, APIs, testing, and backend services.

Net-devs works on enterprise software, AI engineering, cloud platforms, and modern frontend development. Its frontend practice explicitly combines React, Angular, and Vue with TypeScript, while backend engineering covers Node, .NET, JVM technologies, Python, and Go.
The company puts TypeScript into a broader engineering process rather than treating it as a standalone service. Its own web platform, for example, uses TypeScript strict mode, typed data structures, automated checks, and a GitHub-based delivery pipeline. This makes the company more relevant to organizations looking for structured frontend engineering and enterprise software delivery than simple website production.

Itexus develops custom software with a strong focus on fintech and financial products. TypeScript appears in its current project portfolio, including React and TypeScript web applications for investor and relationship-manager portals connected to .NET microservices, Azure infrastructure, and financial workflows.
Its wider service offering includes website development, full-cycle software development, dedicated teams, project rescue, DevOps, UI/UX, QA, and startup development. For organizations in financial services, this creates an option for combining TypeScript interfaces with more complex backend and infrastructure requirements. Itexus also lists an office in Warsaw.
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Mobian Studio works on custom software and dedicated engineering teams, with projects covering mobile and web applications, platform development, integrations, and long-term product support. Its published materials describe web development and custom digital platforms as part of the company's wider software engineering work.
The company's public materials provide stronger evidence for React and Node.js than for a dedicated TypeScript service, so it is better viewed as a broader web and product engineering option rather than a TypeScript specialist. Its European base is in Tallinn, Estonia.

Monterail is particularly relevant to TypeScript projects built around Vue.js and Nuxt. Its Vue development services cover new web applications, legacy modernization, and migrations from Vue 2 to Vue 3, while the company highlights Vue 3's TypeScript integration as useful for maintaining larger applications.
The company also works with Nuxt, which provides native TypeScript support alongside server-side rendering, static generation, routing, and full-stack web application features. Monterail therefore fits projects where TypeScript is being used primarily within the Vue and Nuxt ecosystem rather than as a framework-independent development service.

STX Next handles custom web applications, SaaS platforms, ecommerce systems, legacy modernization, complex APIs, and web products with AI and data components. TypeScript is part of its current web development stack alongside React, Angular, Vue.js, Node.js, Python, and .NET.
The company's TypeScript capabilities are particularly relevant when a project involves more than frontend implementation. Its web teams also work with databases, AWS, Azure, GCP, Docker, Kubernetes, GraphQL, automated testing, and CI/CD, allowing TypeScript applications to sit within a larger engineering environment rather than operating as isolated interfaces.

Scalo has a dedicated TypeScript development service and operates from several locations in Poland. The company works on TypeScript applications as part of its wider custom software and engineering services, with development options covering web applications, frontend and backend work, modernization, and external development teams.
Its TypeScript practice can suit organizations that need additional engineers as well as companies outsourcing a larger application build. The company's European footprint includes Wrocław, Warsaw, Gdańsk, Kraków, and Katowice, which gives it a substantial local presence for businesses specifically comparing Poland-based development partners.

Serokell provides TypeScript development for web applications, custom websites, backend applications, and hybrid products. Its service also covers migration from JavaScript to TypeScript and frontend modernization, making it applicable to businesses with an established JavaScript product as well as those starting a new TypeScript application.
The company has European locations in Tallinn and Paris. Compared with firms centered mainly on React or Vue implementation, Serokell presents TypeScript alongside a wider engineering portfolio that also includes technologies such as Haskell, Rust, Python, Elixir, and Nix. This can be useful for technically mixed products where TypeScript is one part of a larger software architecture.
Europe has plenty of TypeScript development companies, but the right choice depends less on the language itself and more on what you are actually building. Some teams are better suited to React or Next.js products, others work across full-stack TypeScript with Node.js and NestJS, while larger engineering partners can take on modernization, cloud infrastructure, QA, and long-term product development as well.
Companies such as Gilzor, OSKI Solutions, A-listware, LenGreo, Itexus, Mobian Studio, and net-devs approach web development from different angles, so it is worth comparing their technical focus against your project requirements. Before choosing a partner, look at relevant TypeScript experience, the frameworks used, previous projects, team structure, and the level of support available after launch. The strongest match is usually the company whose technical experience lines up closely with the product you need to build and how you expect it to grow.