W3r.one
🧩 Custom Web & Mobile Development, AI & System Integration
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. 10 people in their team
Speaks French, English
11 projects in their portfolioSortlist member since 2024
Founded in 2022
1 award conferred4.95/5
Services
7 services offered by W3r.one
Description We specialize in mobile application development, delivering cutting-edge solutions that drive your business forward. Whether you need an iOS, Android, or cross-platform app, our team of experts leverages the power of React Native to build high-performance, scalable, and user-friendly applications. React Native allows us to develop apps that provide a native-like experience across multiple platforms while reducing development time and cost. By using a single codebase for both iOS and Android, we ensure faster deployment and easier maintenance without compromising on quality or performance. Our approach focuses on creating seamless, intuitive user experiences that engage your audience and meet your business objectives. From concept to launch, we work closely with you to understand your specific needs and develop a tailored solution that aligns with your vision. Whether you’re a startup looking to launch a new product or an established business seeking to expand your mobile presence, W3r.one is your partner for innovative and reliable mobile app development.Skills in Mobile App (18) Custom DevelopmentAndroid AppMobile App DesignReact Native DevelopmentApplication DevelopmentAndroid App DevelopmentMobile PrototypingPush Notification ServiceMobile App PublishingApp Designing+8Works in Mobile App (4) Clients in Mobile App (3) Air FranceAviation & Aerospace | internationalRecreactionToys | nationalInait.aiSoftware & Computer Services | international
Learn more about Mobile AppDescription We specialize in e-commerce development that is both scalable and customizable, empowering businesses to create unique online shopping experiences. Our expertise lies in working with Sylius, an open-source e-commerce platform known for its flexibility and adaptability. Sylius allows us to build fully tailored e-commerce solutions that meet the specific needs of your business while ensuring seamless performance and scalability. With Sylius, we create powerful and future-proof e-commerce stores, giving you full control over the design, functionality, and integration of your platform. Our team of developers excels in crafting bespoke solutions that enhance the customer experience, streamline back-end operations, and enable advanced features such as multi-store setups, complex pricing models, and extensive API integrations. At W3r.one, we focus on delivering e-commerce solutions that are not only visually appealing but also robust, secure, and optimized for performance. Whether you’re launching a new online store or upgrading an existing one, our expertise in Sylius ensures your e-commerce platform is built for success.Skills in E-commerce (14) EcommerceWebshop DevelopmentEcommerce WebsiteEcommerce Web DesignOnline storeE-Commerce HostingPrestashop DevelopmentOnline EcommerceDigital CommerceEcommerce Web Development+4Works in E-commerce (5) Review in E-commerce (1) Anna CsirkeClients in E-commerce (3) Pebble LifeAutomotive | nationalVogavecmoi.comTravel & Leisure | internationalLoste Tradi FranceFood | national
Learn more about E-commerceDescription We offer comprehensive product management services that guide your product from concept to market success. Our team of experienced product managers works closely with you to define your product vision, align it with business objectives, and ensure a smooth development process. We prioritize user-centric design, market relevance, and technical feasibility to ensure your product delivers value and meets customer expectations. Our expertise spans the entire product lifecycle, from initial strategy and roadmap planning to launch and post-launch optimization. We ensure that your product development process stays on track, with clear goals, timelines, and continuous iterations based on user feedback and data insights. The focus is on creating products that not only meet market demands but also exceed user expectations, driving growth and ensuring long-term success.Skills in Product Management (10) Project ManagementProduct DesignProgrammingProduct DevelopmentAgile DevelopmentMinimum Viable ProductAgile MethodologyProduct Lifecycle ManagementProduct Roadmap DefinitionProduct StrategyWorks in Product Management (5) Clients in Product Management (4) Pebble LifeAutomotive | nationalInait.aiSoftware & Computer Services | internationalLoste Tradi FranceFood | nationalRecreactionToys | national
Learn more about Product ManagementDescription We specialize in creating intuitive and engaging UX/UI designs that elevate user experiences and drive business success. Our approach focuses on understanding user behavior, needs, and expectations to design interfaces that are not only visually appealing but also easy to navigate and highly functional. From wireframes and prototypes to final designs, every step of the process is guided by best practices in user-centered design. We ensure that each interaction is smooth and meaningful, whether for web or mobile applications. Our UX/UI designs are aimed at improving user satisfaction, reducing friction, and increasing conversions. The goal is to deliver a seamless experience that aligns with both user needs and business objectives, resulting in products that are both beautiful and effective.Skills in Ergonomy (UX/UI) (15) UX DesignUI DesignDesign ThinkingUser TestingInteraction DesignMobile App UI DesignUser ExperienceUI UXDashboard DesignUX Strategy+5Works in Ergonomy (UX/UI) (9) Clients in Ergonomy (UX/UI) (4) Vogavecmoi.comTravel & Leisure | internationalRecreactionConstruction | nationalInait.aiSoftware & Computer Services | internationalLoste Tradi FranceFood | national
Learn more about Ergonomy (UX/UI)Description We offer tailored web application development services that meet the complex needs of modern businesses. Our expertise in Symfony, a powerful and flexible PHP framework, allows us to build robust, scalable, and secure web applications that are perfectly adapted to your business goals. With Symfony, we develop custom applications that are not only high-performing but also maintainable and easy to scale as your business grows. From complex business platforms to streamlined customer-facing apps, our solutions are built to ensure seamless functionality, fast performance, and secure data handling. Our focus is on delivering web applications that provide a top-tier user experience, optimized workflows, and the reliability that businesses need to operate efficiently in today’s digital landscape.Skills in Web Application (30) Web DevelopmentProgrammingResponsive DesignReact DevelopmentOpen SourceProgressive Web AppPrototype DesignAPI DevelopmentFull Stack DevelopmentIntegration+20Works in Web Application (9) Reviews in Web Application (2) Antoine PENOTGuillaume DeschampsClients in Web Application (4) Pebble LifeAutomotive | nationalVogavecmoi.comTravel & Leisure | internationalRecreactionConstruction | nationalInait.aiSoftware & Computer Services | international
Learn more about Web ApplicationDescription We provide tailored AI integration services to help businesses unlock new levels of automation, personalization, and efficiency. Whether it's deploying AI agents for content moderation, implementing intelligent chat interfaces, or integrating advanced machine learning models, we adapt each solution to your specific needs and platform. Our approach is highly flexible—we can seamlessly connect your systems to leading AI services such as OpenAI, Mistral, or custom models, enabling powerful capabilities like natural language understanding, image recognition, and predictive analytics. We ensure that these tools are not only technically integrated but also aligned with your operational goals and user experience requirements. From enhancing internal workflows to creating smart user-facing features, our AI solutions are designed to be scalable, secure, and performance-driven. Whether you're looking to improve decision-making, reduce manual work, or deliver smarter digital experiences, W3r.one helps you harness the full potential of artificial intelligence.Skills in Artificial Intelligence (7) AI DevelopmentChatGPT ConsultingFraud detectionAI StrategySpeech RecognitionAI Customer ServicePredictive maintenanceWorks in Artificial Intelligence (3) Clients in Artificial Intelligence (2) Vogavecmoi.comTravel & Leisure | internationalInait.aiSoftware & Computer Services | international
Learn more about Artificial IntelligenceDescription We build advanced software solutions tailored to complex business needs—accessible seamlessly across desktop, tablet, and mobile environments. From operational platforms to industry-specific tools, our software is designed to empower teams, streamline processes, and drive digital transformation. Our strength lies in delivering full-featured, browser-accessible systems with rich functionality and intuitive interfaces. These solutions often span multiple user roles, support offline usage, and offer cross-device continuity to ensure that your teams can work effectively, wherever they are. Built with modern technologies such as React, Symfony, and TypeScript, our software combines performance, security, and maintainability. Whether you're digitizing internal operations, centralizing workflows, or launching an innovative service, W3r.one delivers the scalable, robust software infrastructure your business needs to thrive.Skills in Software Development (9) Android AppCustom Software DevelopmentAPI DevelopmentSoftware ArchitectureSymfony DevelopmentiOS App DevelopmentSQL ProgrammingObject OrientedEnterprise Software DevelopmentWorks in Software Development (4) Review in Software Development (1) VINTZEL ClémentClients in Software Development (2) Pebble LifeAutomotive | nationalVogavecmoi.comTravel & Leisure | international
Learn more about Software Development
Team
10 members in W3r.one's team
StoryLaurent and Florian met in engineering school, collaborating on successful startups and working in communication agencies. In 2009, they launched their first company. In 2022, they founded W3r.one with Katty as CEO and Cyrille as front-end architect, creating a dynamic, innovative digital studio.
Awards
W3r.one was awarded 1 time
CII - Crédit Impot Innovation2022-01-01
Reviews
5 reviews for W3r.one
4.95/5
(5 reviews)
Review summary
AI Generated
Responsiveness and flexibility
Proactive problem-solving
Client-focused and collaborative
Transparent and accurate billing
Affordable, tailored solutions
Responsiveness & Flexibility
Clients consistently praise the team's high responsiveness and adaptability, ensuring smooth collaboration even when project requirements change or new challenges arise.
Proactive Problem-Solving
The agency is recognized for its proactive approach, offering relevant technical solutions and demonstrating strong problem-solving skills throughout various projects.
Client-Centric Collaboration
Reviewers highlight the team's collaborative spirit, pedagogical approach, and commitment to understanding and meeting client needs, resulting in enriching and productive partnerships.
VC
VINTZEL ClémentChargé de projets at RECRE'ACTION
ServiceSoftware Development
SectorConstruction
Team201 - 500
What was the objective behind your collaboration?L'objectif était de mettre en place une plateforme SaaS ainsi qu'une application dédiée aux techniciens, développé entièrement sur mesure pour répondre à tous les besoins de notre cœur de métier. Nous avions donc besoin d'une collaboration très proche, avec un nombre d'échange important et une haute disponibilité que ce soit pour les évolutions et pour le support.
What did you enjoy the most during your collaboration?L'équipe W3R a toujours su se montrer disponible, polyvalent, flexible, force proposition et pédagogue. Avide de nouveaux challenges, l'équipe W3R a toujours répondu à nos attentes et plus encore. J'ai également personnellement beaucoup appris et été enrichi professionnellement grâce à cette collaboration.
VINTZEL Clément recommends this agency
GD
Guillaume DeschampsDigital project manager at Qualitel
ServiceWeb Application
What was the objective behind your collaboration?W3r.one developed a custom web application delivering a data-driven service to our clients. The front-end interface is intentionally simple and user-friendly, while the back office allows us to manage client accounts, user access, and track activity. A key technical challenge they successfully overcame was the automated generation of large DOCX reports, dynamically built from structured data and including charts, maps, and other graphical representations.
What did you enjoy the most during your collaboration?The team is highly responsive, flexible, and proactive when it comes to technical solutions. Their ability to suggest relevant and efficient approaches has been a real asset throughout the collaboration. We are also very satisfied with the way the maintenance and support is handled : the time spent on each task is tracked with transparency and billed accurately based on actual time worked.
Guillaume Deschamps recommends this agency
AP
Antoine PENOTFounder @CEO at 4HAW (vogavecmoi, vogweek, vogfleet)
ServiceWeb Application
SectorTravel & Leisure
Team1 - 10
What was the objective behind your collaboration?The agency has been supporting us since 2012 in the development of our custom-made websites.
What did you enjoy the most during your collaboration?The agency always finds financially affordable solutions to meet our business needs.
Antoine PENOT recommends this agency
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