React Development Companies

🇪🇸🇨🇭🇬🇧

Europe-based, serving clients globally

🔒Verified | 🔰Certified |

We design and develop websites, apps and brands that stand out — and convert. We are experts at blending art and science, crafting brands and digital solutions that have a lasting impact. Our skilled team designs distinctive branding and apps your clients will LOVE.

We are proud to have collaborated with prestigious brands and organisations like ESA, Fiat, Point S, Desigual, and AirFrance, reflecting our commitment to excellence and high-quality results.

💎 What We Offer:

• Immersive Design: Engaging, sensory-driven experiences that redefine how users interact with your brand.
• Branding and Naming: Crafting strong identities and impactful names that resonate with your values.
• UX/UI Excellence: Beautiful, intuitive designs that elevate your digital presence.
• Graphic & Editorial Design: Visuals that tell your story and leave a lasting impression.
• App Development: Mobile and web applications built for performance, scalability, and beauty.
• Web Creation: Showcase and corporate websites tailored to reflect your unique identity and fully optimized for SEO.

🔧 Our Technical Arsenal:

• General: PHP, Java, Python, Ruby on Rails, JavaScript
• Front-end: React, Angular
• Mobile: Xamarin, Ionic, Flutter, React Native, Swift, Kotlin
• Hosting Services: AWS, Microsoft Azure, Google Cloud, Heroku
• AI Integrations: OpenAI, ChatGPT, Llama, Gemini and beyond.
• CMS Expertise: WordPress, Shopify, Webflow, Wix, Magento

Elevate Your Digital Identity

Let’s create something extraordinary together.

📧 Contact: contact@morpheon.co

🌐 Website: https://morpheon.co/

📞+34 930 49 24 22 | +33 1 87 66 32 44

LinkedIn: https://www.linkedin.com/company/morpheon-studio

Instagram: https://www.instagram.com/morpheon.studio/

W3r.one supports companies in the design and development of fully custom web and mobile applications. We build robust, intuitive, and scalable solutions, perfectly aligned with your needs, processes, and ambitions.

We get involved from the very first steps to structure requirements, lay solid technical foundations, and make the right choices from the outset. Thanks to our consulting approach, we help you connect your business challenges with the most relevant technologies and find solutions throughout the project, even as needs evolve.

We work with SMEs, mid-sized companies, and venture-backed startups looking to establish a solid technical stack to support their growth, reassure their investors, and scale without technical debt.

🎯 Our Approach

➤ Scoping workshops to align product vision and ground reality

➤ Highly user-centric UX/UI: clear, simple, effective

➤ Custom full-stack development (React, React Native, TypeScript, Symfony...)

➤ MVPs delivered in a few weeks, without compromising on quality

➤ Seamless integration of all your tools via API (ERP, CRM, third-party services...)

➤ AI & Data Expertise: automation, analytics, decision support

➤ Optimization of internal processes through custom business platforms

➤ Continuous technological consulting: architecture choices, scalability, technical trade-offs

💡 Our Difference

We translate your business challenges into concrete, high-performing digital solutions that are ready to evolve with you.

At W3r.one, every line of code serves a clear vision: to build a solid, scalable, and useful technical foundation.

Do you have an idea, a project, or a business need to transform?

📩 Contact us, let's talk about it.

Otomoro is a Lyon-based digital studio that places eco-design at the heart of every project: optimized code, green hosting, products designed to last, and clients supported in this approach.

We design and develop high-end digital products, showcase websites, SaaS applications, and e-commerce solutions for startups, SMEs, and large companies looking for a reliable long-term partner.

Meticulous design, solid code, a single point of contact. And the conviction that a good digital product is also a responsible product.

Do you want to discuss your project via video call?

Call us at: 06 72 33 76 60

Or contact us here: hello@otomoro.com

ZOL is more than 50 experts, completely geeks but highly approachable and totally obsessed with the success of the digital projects entrusted to them, and also quite fond of ribeye steaks and Burgundy wine, but that's another story! Our specialty? Personalization, differentiation, and the creation of unique solutions that allow companies to stand out from their competitors. In other words: custom-made, haute couture in digital version. We adapt technology to our clients' needs, not the other way around, and that changes everything! ZOL means 20 years of experience, more than 200 companies supported and 350 projects completed across 6 areas of expertise:

- Consulting & support for digital transformation - Technical architecture & development

- Development and creation of web and mobile applications - User experience & interface design - Data Marketing, SEO & GDPR - E-Commerce consulting and design We support entrepreneurs in a highly pragmatic way in all stages of their digitalization, to help them "perform" as they say at dinners, meaning simplifying their organization, identifying growth levers, or winning new clients. Websites, E-Commerce platforms, mobile apps, business tools, etc. All our creations are specific, robust, scalable, and secure. And unlike pre-formatted software that floods the market, the solutions we produce for our clients resemble them and belong to them 100%!

Founded in 2012 as an outsourcing company, steps worked primarily with international clients. We provided offshore web,  development and data Treatment services to governments, general public and businesses.While we were working with our clients, we started developing a database and building our team’s expertise in Data Mining and Analysis. Within one year, we decided to make data science an essential part of what we do.

In addition to our competencies in Data Analytics, our IT engineers develop web applications.

We provide a comprehensive set of services for our customers. We believe that our quality work is what makes us stand out in regard to our competitors on the market. We want to be there for our clients during every step of the way from the pre-launch and even after they have their final product.

Digital Unicorn is a CII-approved digital studio, specializing in the design and development of high-performing, innovative, and tailor-made digital projects. We are a team of expert developers, designers, and project managers, all passionate about our craft and proud of the applications we create for our clients.

Whether you are a large company or an innovative startup, whatever your project, we are here to make it happen.

Technological Solution

• At the forefront of the latest trends and technological advancements, we conceive and develop the best solutions for each of your needs: connected objects, micro-geolocalization, artificial intelligence, virtual reality... We favor the most robust and efficient technologies such as React Native, Node.js, Redux, or Firebase for the development of your projects.

• We like to get involved in projects by proposing the creation and development of UX (User Experience), then UI (User Interface), and Design to ensure that the technical and commercial product design truly meets the needs of the target audience. We are convinced that close collaboration from the very beginning of an idea is the guarantee of rapid and efficient development, ensuring future success. We make this our priority.

UX and UI Design Solution

• Our designers work with you to create a graphical interface (UI) and user experience (UX) that meet the functional requirements of your project. We invite you to read the article we wrote on the definition of UX Design and its difference from UI Design.

• The design and development phases are very important. To help you stand out, design and user experience will allow us to offer a real Value Proposition for your project. This will determine the first impressions of your users.

We ensure the balance between the aesthetic and technological worlds to bring your digital projects from the shadows into the light.

Aware that what we see is only part of the iceberg, we put as much effort into development as into creation. Independent since our creation in 2008, we aim to live and enable useful digital experiences. We aim to place technical, environmental, and societal performance at the heart of all projects.

#1 - An Entire Digital Agency

People First, Truly

We are 29, all on permanent contracts in France, with respected parity, having our say in our schedules and projects. 41% of the team has been with us for over 5 years.

From Meeting to Production

We strive to master all stages of each project, whether together or separately. And we give you just as much attention, from brief to maintenance, whatever your challenge.

Curiosity

We work with exciting, constantly evolving materials. That's why we stay informed and train ourselves on new tools and technologies.

Expertise & Trust

Today, 70% of us have over 10 years of experience in our field. And over 36 clients continue to trust us daily.

#2 - Enhancing the Visible by Working on the Invisible.

Technologies and Development

• Structural Technologies (backend / architecture)
• Creative Technologies (frontend)
• Interaction Technologies (omnichannel / in-store / DTS / Street / OOH)
• Artificial Intelligence
• Gaming Technology
• Tracking & SEO

Design and Creation

• Design (UX design / UX research)
• Interaction Design and Creation (Design systems / UI)
• Visual Identity designed for digital
• 3D
• FOOH / Motion / XR-AR...

Project Management

• Performance Expertise (RGESN / RGAA / RGPD / cybersecurity / SEO)
• Production of websites, pages, apps, and business tools
• Ongoing Maintenance (TMA / TMC / TME)

Strategy

• Audits and Recommendations
• Methodological Design (including design thinking and Google sprints)
• Strategic and Creative Planning
• Content Strategy

#3 - Mastery Arises from Diversity

• Websites for Balenciaga, CARE France, CCI Nice, Chanel, Savencia, Sécurité Routière, WiZiU...
• Mobile Applications for Musée Jacquemart André, Octopus energy, Parc Astérix...
• Custom business tools for Babcock, ACE éducation, Fountaine Pajot, Qpark...
• Digital experiences (Gaming, Longreads, Drive to Store, 3D, FOOH, Motion Design, XR-AR) for Carel Paris, Coty, Kering, Lacoste, Lancaster, Messika...
• Maintenance (TMA / TMC / TME) for Barilla, Bridelice, Harrys, Santé publique France...

#4 - We are accustomed to working with demanding sectors

• Luxury, Perfume & Beauty, Jewelry
• Food & Agri-food
• Institutional; Metropolises & Collectivities
• Hospitality & Catering
• City Stakeholders
• Culture & Leisure

See you soon!

At Keleo Solutions, we transform complex ideas into simple, useful, and sustainable digital solutions.

Web & mobile applications, custom business software, UX/UI… since 2016, we have been designing digital tools that address real business challenges, with a strong focus on user experience, performance, and environmental impact:

• Custom business software
• Web & mobile applications
• AI Automations
• Various AI Tools

🎯 Our difference?

• A cohesive multidisciplinary team that speaks both tech and user language.

• End-to-end strategic support: from ideation to deployment.

• An ethical, responsible, and committed approach to digital technology.

Our clients? VSEs, SMEs, mid-sized companies, local authorities, and ambitious startups that want to:

✅ Design a custom application (web/mobile)

✅ Optimize an existing product or user journey

✅ Create value through clear UX and agile development

✅ Rely on a reliable, human-sized, and involved partner

At Keleo, we don't just code to deliver. We design to make an impact.

Founded in 2014, Code-Troopers is an agency specializing in custom web and mobile development. We support companies (SMEs, scale-ups, large groups) and public organizations in the design, deployment, and maintenance of strategic applications.

We operate in various sectors: mobility, energy, health, events, and remain open to other fields.

Our expertise covers the entire project lifecycle: technical audit, software architecture, development, integration, go-live, and operational monitoring. We master a wide range of technologies (Kubernetes, Docker, CI/CD, Java, Kotlin, Swift, Typescript, React, Vue, Spring Boot, PostgreSQL...) and implement rigorous practices to ensure performance, security, and scalability.

We have already designed and maintained platforms for public actors such as the Conseil Constitutionnel and DossierFacile, scale-ups like Virtuo, as well as solutions in the health and event sectors. Our internal product, Chapito, demonstrates our ability to create and industrialize a complete SaaS.

Depending on your needs, we assemble a complete project team (design, development, DevOps, management) or reinforce your existing teams by bringing expertise and methodology.

With a human-sized, committed, and expert team, we build robust, scalable applications tailored to the critical challenges of IT departments, CTOs, and executives.

Since 2016, Web Vision 360 has established itself as a digital agency where every project is unique. Our conviction: a 360° vision of digital, combined with the precise orchestration of strategic growth levers, is the key to transforming your objectives into tangible results.

Our rigorous methodology and our global expertise cover all aspects of digital: strategy, development, CRM, marketing, and acquisition. We don't just deliver projects; we create high-performing digital experiences that propel your growth.

Our expertise

We go beyond isolated solutions to create a synergy of expertise:

• 🚀 Tailored digital strategy
• 💻 High-performance web development
• ⚙️ HubSpot CRM – Certified Platinum Partner
• 🎯 Google Ads – Google Partner Agency
• 🔍 SEO (technical, semantic & content)

Why choose us?

A passionate, certified, and ROI-oriented digital partner who transforms your challenges into concrete and sustainable opportunities.

👉 Let's meet and talk about your project: https://webvision360.com

Galadrim is building web and mobile applications.

Our team is made of software engineers who are passionate about building the best possible products for our clients. Our clients range from start-ups to large corporations, including Decathlon, Leroy Merlin, Bandai, Konbini and 30 more.

We have gained expertise in fast-paced technologies, such as Python, Node.js, React.js and React Native.

Get in touch with us: contact@galadrim.fr

Galadrim's agile method.

We support our clients on topics of custom web and mobile design & development.

Since 2010, we have been involved in creating websites, platforms, and mobile applications.

We work for start-ups and associations: Action contre la faim, Fondapol,

for large groups: Roche, Rungis, Nespresso, Freyssinet, Galbani, Best Westen etc.

as well as (very) innovative clients: Mirakl, SkinAnalysia etc.

We are involved in the Consulting phase: Usage & needs definition, Infrastructure & technologies, Digital transition consulting, but also in the execution phase: UX & UI, Web development, Mobile development,

as well as consulting in Server Infrastructure.

We favor close support for clients with dedicated project managers, using agile methods.

Our team is composed of specialized technical profiles, to approach our projects in an optimized way and be reactive to our clients' requests. Our quality testing and automated deployment methods allow us to maintain this same reactivity in the very long term.

Contact us for a free analysis of your project.

nuances designs custom digital solutions, from product discovery to the extra mile. Specializing in e-commerce and SaaS, we combine technological mastery, intuitive design, product strategy, and continuous optimization (CRO) to transform your projects into impactful and profitable experiences.

What sets us apart:

We have no sales representatives.

We never have.

And we never will.

99% of our revenue comes exclusively from client recommendations and our reputation, which are enough to fill our schedule.

Your future recommendation of our services is our primary criterion for measuring the success of our collaboration.

Know-how: we take ownership of your challenges to make them intimately ours

Business-first: technology only makes sense when it serves the business

Ultra-specialized team: small, responsive team, direct communication, controlled deadlines

Extra-mile commitment: your success is our long-term responsibility

E-commerce & SaaS focus: proven expertise on Shopify platforms, marketplaces, and SaaS applications

Data-driven culture: decisions and iterations guided by analytics and real feedback.

Our potential areas of action:

UI/UX Design & Branding

• Creation of visual identities, Branding & brand platform
• Logo, graphic charter, guidelines.
• Figma wireframes & mockups
• Product Design
• UI/UX conception
• User journeys, interactive prototypes
• UX Research

Technology

• Front-end and Shopify & Shopify+ integration
• Full-stack development (Node.js, React), third-party APIs, back-office, CI/CD, Test Automation
• AI Model training & LLM integration, agent design & development

Product Strategy, CRO & Data

• Product scoping, backlog & user stories, MVP and iterations based on user feedback
• Analytics audit (GA4, Hotjar…), tracking, A/B tests, statistical analyses and conversion optimization
• Project management, QA, empowerment of client teams

LE BACKYARD is a digital innovation agency that operates at a strategic level to create and optimize high-performing digital tools through user-centered design. Our agency is located in Paris 11th arrondissement, and our team is composed of 30+ experts (UX and UI designers, Product Owners, Web and mobile developers, etc.).

Our mastery of the entire value chain of a digital project allows us to support you in activating levers that enable you to increase productivity, grow your market share, improve your brand image and/or retain your customers.

Our methodology is user-centered and our interventions are always focused on measurable results with the aim of designing ever more efficient and profitable tools for you.

We are CII accredited for your mobile and web projects, so you can benefit from a 20% tax credit on all our services (subject to conditions)

OUR AREAS OF EXPERTISE:

>>> USER EXPERIENCE >>>

UX research / UX design / UX writing

>>> USER INTERFACE >>>

UI design / Interaction design / Service blueprint / UI kit / Design system

>>> PROJECT MANAGEMENT >>>

Product positioning / Solution definition / Quality control / Project steering

>>> WEB DEVELOPMENT >>>

Showcase websites / E-commerce platforms / Marketplace / Business tools / Intranets / Extranets / Maintenance

>>> MOBILE APP DEVELOPMENT >>>

Native /

Our team of developers works exclusively on React Native technology.

OUR CLIENTS:

AIR FRANCE, CITYSCOOT, COINHOUSE, SAINT LAURENT, EDF, GROUPE ADP, METROSCOPE, ORANGE, AMAZON, VINCI IMMOBILIER, MONEY TRACK, VEOLIA, RAIL EUROPE (SNCF), BLABLACAR, LOXAM, O'TACOS, THEOP, ENEDIS, SOWEE...

Discover all our expertise and achievements at www.lebackyard.fr.

For over 15 years, Adeliom has been the digital co-pilot for Mid-sized Companies, Large Enterprises & Organizations whose current digital model has reached its limits.



Scattered data, businesses constrained by tools, disjointed customer journeys, and a multitude of providers, without a conductor to orchestrate everything.

We support Digital, Marketing & IT departments in transforming their digital ecosystem into a lever for commercial and operational efficiency.



Our role: to frame, structure, design, optimize.



Concretely, our support is based on four phases:

1. Analyze and frame the project, to clarify the use cases, align stakeholders, and prioritize all their needs as well as the right performance indicators.

2. Structure the solution architecture, by modeling customer and business journeys, data flows, and defining the specific ergonomic and technical architecture.

3. Design tailor-made interconnected solutions:


• Product sites & order portals


• Customer & network spaces


• Product configurators & calculators


• Business & field tools (Technician, Sales Admin, HR, After-sales Service, Sales)

4. Continuously test, maintain, and improve, by sustainably evolving these services through various optimizations (UX, technical, CRO, accessibility) and reasoned AI implementations.



The result: better-equipped teams, loyal customers, and a fully mastered distribution network.

Ultimately,

Adeliom becomes a true extension of their team, aligning the IS with the reality of businesses and customers to put technology back at the service of the Humans who use it.



Some inspiring results: 



✔︎ +15 % qualified leads – Culligan


✔︎ +7 % conversion – Tryba


✔︎ +57 % orders – Airbus


✔︎ x2 online sales – Liebherr


✔︎ +8 % engagement rate – Airbus



A structuring project to launch? -> contact@adeliom.com | 03 67 10 08 49

Web, mobile and IT consulting agency.

A fusion between an IT consulting firm and a development agency, we support large companies, SMEs and pure players in the design and development of their digital solutions.

Our Mobile Factory is made up of experts in the design and development of mobile applications. We use the latest native or hybrid (cross-platform) technologies.

We can audit, monitor, update, promote, design, optimize or develop the next features of your mobile applications.

DropTeam est une agence web et digitale spécialisée Drupal, reconnue en France pour son orientation métier, son haut niveau d’ingénierie et sa capacité à concevoir des plateformes Drupal à forts enjeux business, où les équipes métiers et marketing doivent disposer d’une forte autonomie d’action.

DropTeam figure parmi les principales agences Drupal françaises référencées sur Drupal.org, la plateforme officielle du projet Drupal, qui recense et qualifie les partenaires par pays.

👉 Liste des agences Drupal partenaires en France :

https://www.drupal.org/drupal-services?title=&offices%5B%5D=FR

DropTeam est également partenaire certifié Drupal, officiellement référencé sur Drupal.org, attestant de son expertise Drupal et de son engagement durable dans l’écosystème open source.

👉 Page partenaire officielle DropTeam sur Drupal.org :

https://www.drupal.org/dropteam

🔧 Contributeur majeur au cœur de Drupal

Au-delà de son rôle d’intégrateur, DropTeam est un contributeur actif et structurant du projet Drupal, à l’origine et au maintien de modules largement utilisés au sein de la communauté internationale.

Parmi ses contributions majeures figurent notamment :

UI Suite : Un ensemble de modules au cœur des approches modernes de design system et de Component Based Design dans Drupal, largement adopté pour structurer des interfaces métiers cohérentes, maintenables et orientées autonomie.

Admin Toolbar : L’un des modules Drupal les plus utilisés au monde, facilitant la navigation et l’administration, déployé sur plus de 250 000 sites Drupal en production.

Et bien d'autres contributions qui démontrent la maîtrise profonde de l’architecture Drupal, mais aussi la capacité de DropTeam à influencer directement l’évolution de l’outil, bien au-delà de simples projets clients.

Embark on a digital conquest and boost your digital activity!

With over 10 years of experience in IT and CII approved, Josh Digital is among the best next-generation French TECH Agencies, supported by BPI FRANCE, BNP PARIBAS & CCI DE PARIS IDF.

Based on an agile, immersive, collaborative, and responsible approach, we provide high-level digital expertise thanks to our team passionate about new technologies, for the custom development of digital applications in continuous improvement:

* Specific business tools integrated into our clients' IS (BPM, DASHBOARD, EXTRANET / INTRANET, ERP, CRM)

* Mobile / tablet applications on iOS and Android (crossplatform)

* Self-hosted AI Solutions (RAG, LLM/VLM, NLP, DATA, AUTOMOTION, AGENTIC)

* Websites and dedicated platforms (Client areas, Partner areas)

* Proactive, corrective, and evolutive maintenance (TMA / TME)

* Server infrastructure outsourcing and devops

Composed of creative & technical talents with fullstack skills and solid experience (UX/UI Design & IT Development), we aim to be a true extension of your team, adapting to your needs in a collaborative framework, fully engaging in your project.

Josh Digital, in numbers, is:

+20 Employees

+95 Clients

+300 Digital Projects

+50 Mobile Applications

+30 Business Apps

Today, we collaborate with prestigious large companies and innovative startups, such as: BNP Paribas, Nicolas Feuillatte, SNCF, ISS France, Welkeys, Arioneo, Samboat... And many others who have chosen to trust us!

Always seeking innovation, we advise our clients on technological choices and the implementation of their digital projects.

Have a Tech Project to entrust to us? Gain productivity and digital competitiveness now!

#WEARETECH

#WEAREJOSH

At LesBonsTech, we create custom websites, in your image, high-performing and optimized.

But that's not all! Since 2018, we have been supporting our clients in defining their digital needs and putting them into practice with customer support at every stage of the project. Technical and human expertise that makes all the difference.

We design showcase and e-commerce sites, marketplaces, and business tools that resemble you. Tailor-made solutions to make your project an experience that sets you apart.

Each project is managed by a project manager, a single point of contact who oversees the entire tech team and facilitates communication with our clients.

Our agency places great importance on delivering solutions with a sound architecture and impeccable code quality.

On the graphic design side, we also support you wherever you need it: logo creation, graphic charter, webdesign... It's always a real pleasure to translate your universe into design!

Our services:

Development

• Front and back-end web development (showcase site, e-commerce, institutional site, web platform, marketplace / with or without CMS)
• Web Application
• API
• Mockup integration (front-end)
• Front-end animations

Graphic Design / Design

• UX / user journey
• UI
• Webdesign
• Logo and graphic charter creation
• Print design

We develop dreams