React Development Companies in Paris

🇪🇸🇨🇭🇬🇧

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/

STEPS is a Tunisian digital transformation and engineering partner. We help ambitious companies design, build, and scale business-critical platforms, custom software, AI applications, data dashboards, and nearshore engineering teams.

We are known for one thing: shipping to production, not to demo. From custom platforms and mobile apps to LLM applications and data dashboards, our delivery culture is built on engineering discipline, code review, testing, CI/CD, documentation, monitoring.

We have built and operate a digital hub for a leading pan-African bank, modernized platforms for institutions across regulated sectors, and partner long-term with European companies looking for senior nearshore engineering.

Trilingual by design (FR/EN/AR). Our services: Product Development, Product Design, Digital Transformation, AI & Data Engineering, and Technology Partnership (CTO-as-a-Service, nearshore team extension).

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.

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%!

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.

Grafen is a Product, Data & AI engineering firm specializing in the design and development of fully customized digital business solutions. From strategic consulting and design thinking to web & mobile app development, cloud & DevOps, data analytics, AI, and cybersecurity, we deliver robust, scalable, and secure tools that adapt to your unique processes. Our mission is to centralize your data, automate repetitive tasks, and boost productivity, all with a rapid time-to-market, flexible financial approach, and long-term commitment to results.

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!

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.

Hello Pomelo transforms the IT system of mid-sized and large companies in 2 complementary areas: the Sales IT, to maximize commercial performance through IT, and the OPS IT, to ensure a reliable, secure, and high-performing infrastructure. For over 10 years, we have been a true tech partner for our clients, supporting them with their challenges:

- Custom software development and application maintenance: Design of software adapted to your business. As TMA experts, we fix anomalies, optimize performance, and work to evolve your applications.

- B2B E-commerce and data management tools: Creation or redesign of custom online sales platforms, and B2B customer portals. We integrate data management tools: PIM / DAM / MDM.

- ERP Integrator: Specialists in Microsoft Dynamics 365 Business Central, we support mid-sized and large companies in the audit, deployment, and evolution of their ERP.

- DevOps and Cloud Managed Services: Implementation of agile and scalable infrastructures for continuity, security, interoperability, and to accelerate the deployment of your solutions: Cloud migration, cybersecurity, managed services, and monitoring.

Our successes:

Le Boncoin, Photomaton, Homair, ICAPE, Enovos, Proman, Terminaux de Normandie have entrusted us with their most strategic projects, and we support them long-term. This trust is based on concrete expertise: we master the technologies that make a difference: Microsoft Azure, Dynamics 365 Business Central, Sylius, Shopify, Akeneo... and we put them at the service of your business challenges.

What sets us apart is our commitment beyond delivery: managing, evolving, and securing your solutions over time, with total transparency thanks to our Elephant Track monitoring tool.

We help companies develop impactful web, mobile, and AI products in record time

We aim for excellence for all our clients. To achieve this, we proceed as pragmatically as possible with complete transparency with you and your teams throughout the development period.

We are used to working on projects with significant technical and commercial challenges. Whether for start-ups or large groups, we know how to adapt our methods and are ready to take on any challenge.

Our expertise

We design, develop, and maintain high-performance web, mobile, and AI applications that can address complex business and technical issues.

We implement cloud architectures that can scale to hundreds of thousands of users.

We advise you on your business strategy based on our experience and a 360° vision of technological challenges: UX, acquisition, SEO, SEA, choice of providers, and technical tools.

The Galadrim agile method.

Produce maximum value by prioritizing features and placing you at the heart of the project team.

Practicing agile methodology means gathering as much feedback as possible during development to maximize the value produced.

It's a real mindset to adopt! You become a direct player in the product development.

Galadrim provides you with one or more developers to frame and execute your project. We advise you throughout the project.

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.

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.

Actency is a French web and digital agency specializing in Drupal, recognized for the design and operation of critical web portals with high stakes: highly competitive, strategic, or exposed to very high traffic volumes, requiring high availability, performance, and advanced security.

Actency is among the main French Drupal agencies listed on Drupal.org, the official website of the Drupal project, which lists and qualifies specialized partners by country.

👉 See the list of Drupal partner agencies in France:

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

Since 2007, Actency has been officially listed as a partner on Drupal.org, attesting to its positioning as an expert Drupal agency and its lasting commitment to the ecosystem.

👉 Actency's official partner page on Drupal.org:

https://www.drupal.org/actency

Actency views Drupal not as a simple CMS, but as the central foundation of a complete digital platform, integrated into the organization's information system.

The agency combines Drupal with ultra-high-performance headless / SSG architectures, advanced automation (DevOps, CI/CD), strong business autonomy, and controlled content governance, guaranteeing scalability, security, and performance.

With over 250 experts within the AODB group, Actency has been supporting public and private organizations for over 15 years on complex and structuring Drupal projects, and has already served more than 1,000 clients in France.

Its references include notably Matmut, PSA, Renault Trucks, Socomec, Kuhn, Légifrance, the Direction Générale des Douanes, as well as numerous institutional and industrial players.

Locations: Paris, Strasbourg, Lyon, Bordeaux, Nantes, Toulouse, Tunis, Marrakech, Rabat

Specialties: Drupal site factories, critical web portals, Headless / Next.js / React Drupal architectures

We develop dreams

Since 2014, Gradiweb has been supporting major E-commerce players in the design, development, and optimization of high-end Shopify sites.

Based in western Paris, our team of Shopify experts implements its know-how in user experience, graphic design, and feature integration to build high-performance sales tools perfectly tailored to needs. Nothing is left to chance; we ensure that the site is SEO-friendly, mobile-first, and fully configurable.

Web and mobile application development.

Expertise in business applications, SaaS, intranet, extranet, and productivity tools.

Shortcut is a French agency, founded in 2020 by two passionate technical team developers and managers with over 10 years of experience each.

They are committed to using their skills to automate repetitive and low-value-added tasks, and to create software that provides users with significant productivity gains and simplified access to functionalities.

Ergonomics and accessibility are at the heart of Shortcut's approach.

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 the entire digital spectrum: strategy, development, CRM, marketing, and acquisition. We don't just deliver projects, we create high-performing digital experiences that drive your growth.

Our Expertise

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

• 🚀 Tailored digital strategy
• 💻 High-performance web development
• ⚙️ HubSpot CRM – Platinum Certified 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

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

Creatiwity is a Digital Agency specializing in UX and Design that creates custom websites and mobile applications.

• OUR CLIENTS

Our clients are very diverse: from SMEs to major industry players or pharmaceutical laboratories for their international communication operations. We develop websites and mobile applications in-house using technologies developed within the company, which allow us to respond to our clients ever more quickly. M6, monAlbumPhoto, Orange, Air France, Printic, Valeo, Little Worker, etc.

• MOBILE APPLICATIONS

For a communication campaign or a business need, we develop your iOS and Android applications in native language (Java/Kotlin or Swift) or WebApp. A modern design, adapted for each platform, will improve the user-friendliness of the app. The application can be designed with a dual tablet and smartphone version. Bring your mobile project to life with a creative app.

• WEBSITES

Creatiwity websites meet your needs for a web presence or to sell your products on an e-commerce platform. Improve your visibility with a fully custom design adapted to your business. All our sites offer "cross-device" compatibility by adapting to tablets and smartphones. Get a quality, cutting-edge website!

• UX/UI

Creatiwity handles your UX/UI design projects. We organize UX workshops to create mockups for your web & mobile application projects. Finally, we also create the UI design boards for your projects using Sketch and Figma software.

🎯 Want to join a young and dynamic team to work in development or design?

We are hiring: https://creatiwity.net/recrutement