Prototype Design Companies

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.

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.

NetDevices is a web and/or mobile application development agency. Of course, we can also create websites!

We also work on other subjects: cloud deployment and optimization, data projects, AI (artificial intelligence), nocode, bubble, low-code, etc.

NetDevices is also accredited CII (Innovation Tax Credit), which is a significant advantage for our clients.

Would you like a quote? Or simply discuss your project? Do not hesitate to contact us.

To learn more about our presentation:

• Innovation Tax Credit with NetDevices

Thanks to its CII accreditation (innovation tax credit), NetDevices offers its clients the possibility of obtaining a 30% saving on expenses incurred. The objective is to reduce the financial impact of innovative projects. Accreditation also assures you that we have the necessary human and material resources to carry out the operations entrusted to us.

• Methodology

The agency organizes innovative solutions to support you in the development of your digital strategy, carry out a digital transformation project or evolve your organization towards AGILE methodologies.
In addition to our technical expertise, our international multidisciplinary team assists/advises on UX/UI design, functionalities, Business Plan aspects, and commercial models. It works with the most efficient tools of the moment and guarantees you a tailor-made result. It has adapted to diverse and specific objectives.

• The birth of the Parisian web agency, Netdevices, expert in Web, Mobile, Cloud & Data

Initially, our ambition was to create a "spotify" for paid daily press. The project aimed to offer internet users the possibility to find all articles from multi-title "print" newspapers on a single platform. And this, at attractive prices for the general public, with less intrusive advertising. To this end, we used semantic analysis and language analysis tools to suggest associated content.
This project also had the following objective: the construction of a tablet dedicated to reading journalistic content. This hardware project explains the company name Net (for internet) Devices (for the project's hardware). We were incubated at ENSAM, which supported us on the industrial side. The dedicated hardware and environment were prototyped.

As press publishers abandoned the project 18 months later, efforts were focused on Research & Development. NetDevices redirected its activity towards service provision, while continuing to invest in R&D with the launch of the Web2Mobile and Sharry solutions.

With over 10 years of experience, our clients benefit from all our expertise in implementing web, mobile, cloud deployment, data lake implementation, and artificial intelligence algorithm integration (computer vision, natural language processing) digital solutions.

• MVP Studio Offer

Many clients come to us with projects whose scope is yet to be defined, whose functionalities will evolve quickly, and whose interfaces are not finalized. Rather than engaging in direct JS development, we now have the capability to develop your project quickly and under highly adapted financial conditions.
With bubble.io, we meet this need: to be hyper-responsive with enhanced agility without requiring the traditional investments to launch a product/project.

In 2021, we therefore launched the MVP Studio offer:

- Upstream support on product definition and positioning

- Record-time development of your product

- Coaching on commercial aspects, revenue model, positioning, Business Plan realization, and assistance with the approach for financing from entities such as BPI.

• Complex Platforms

As an expert in web, mobile, cloud, and data, NetDevices handles all types of projects, even the most complex ones.

Do you need an iOS or Android application for your sales team, to showcase a product, to collect customer feedback, or to manage your employees' interventions, a website redesign or creation? Write to us.

Thanks to our expertise and tools, we provide you with a scalable and evolving result.

Our specializations include:

- JavaScript frameworks: reactJS, NodeJS, React Native, Angular, VueJS, Flutter, etc. We add associated JavaScript libraries.

- Automated testing: jest, mocha, jasmine…

- Quality and monitoring: datadog or prometheus, sonarqube.

• Big Data

Today, to grow, companies cannot escape Big Data. Data collection allows you to improve your commercial operations (understanding your target audience, their expectations, etc.), but also to gain overall efficiency. So, to help companies optimally exploit data, NetDevices uses several Big Data solutions at your service.

- Datalake: allows you to store your data.

- Python: it is a web language specifically adapted for big data. It allows transforming large data formats. It is essential assistance for developers.

- Computer Vision: thanks to this artificial intelligence, you can analyze your data to facilitate decision-making.

• No code

Creating a website requires specific coding skills. However, not all companies have the ability to use the services of a programmer or developer for the creation or development of their website.
NetDevices provides you with several no-code software solutions: bubble.io, Wimpact projects, FrigoGusto, Pairing.
Very easy to use, these web solutions allow you to modify the components of your Web/Mobile application as you wish. Use drag-and-drop, and your web project takes shape.

• Consulting & Netdevices

In addition to the purely technical solutions offered by NetDevices, we also assist you in your web projects through consulting missions:

- UX/UI: we support our clients in implementing interfaces so that they perfectly meet user requirements.

- Agile: we implement the AGILE process for our clients to foster communication, continuous improvement, and adaptation to change.

- Web development: we support numerous companies in their development strategy. This includes large groups as well as startups: AXA, Bayard, Alobees, Family Self Care, HBS, Groupe Cimes, Fleetizen, Sumi Agro, Pronos Direct, Infogreffe, …

Our agency, specialized in web, mobile, cloud, and data, advises and guides you simply and quickly.

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

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.

And After is an Ecommerce & Digital Strategy agency !

Our expertise allows us to lead our clients to success trough their transformation and digital acceleration with main goals : Performance & Innovation.

We are glad to be able to work with world-renowned companies : Groupe Rocher, Hachette Collections, Linvosges, Bizline, Revol, Collants le Bourget, HappyVore, France Thermes, Yooji ...

In 2017, And After released is own Ecommerce Solution : Easyboutiq for companies who wish having a tool being able to answer their issues and not the reverse. Easyboutiq is already used, in France and abroad, by International Company leaders on their business area. By the way, to be able to lead our clients to the right direction, we also use market standards tools : Shopify, Magento 2 and Wordpress.

For each of our clients, we follow the same partnership philosophy : service and efficiency ! We always be an an available, attentive, invested and responsive interlocutor ! Our DNA : Proximity, Creativity, Performance and Innovation

40-60 Studio agency, your partner for boosting the digital space. Specializing in CX, UX/UI, we transform your challenges into increased conversions, improved retention, and upselling, thanks to intuitive interfaces.

Websites, B2B/B2C marketplaces, SaaS platforms, or mobile apps, we ensure a remarkable digital presence aligned with your strategic vision.

Our team, blending the agility of a digital startup with the in-depth support of mid-sized and large companies, is dedicated to excellence.

Since 2016, our expertise has extended over 190 projects in various sectors, proving our ability to innovate and customize our solutions according to your specific needs.

Commit to effective digital transformation, where every interaction is an opportunity for growth. Your vision, our mission: effectively materialize your digital ambitions.

40/60 is the strategy, UX/UI, development & Innovation agency you need.

More information on our website

Find us in Paris and Nantes 📍

Our clients:

Stellantis | Eiffage | SNCF | Arte | ADN Data | Heineken | LVMH | Simplon

Talfac – Think right. Build clean. Deliver fast.

It often all starts with an idea. Sometimes well-defined, sometimes vague, but always ambitious.

Transforming your ideas into concrete, reliable, and scalable products: that is our mission.

We have supported startups in their seed stage, large groups in transition, SMEs in mutation.

Mobile applications, SaaS platforms, complex back-offices, AI tools, or no-code MVPs built in a hurry. Always with the same guiding principle: keep it simple, but robust.

Our approach is based on three pillars:

1. Understand: not just what needs to be coded, but why.

2. Structure: choose the right technology, set up the architecture, anticipate evolutions.

3. Execute: cleanly, quickly, without empty promises.

We don't sell code. We build useful tools.

Our clients: BVA, Paris Turf, Wiztopic, Hublo, Landor, BCG, Hakoo… and others who have trusted us to move forward, pivot, accelerate.

We love what we do. We do it well. And thanks to the Crédit Impôt Innovation incentive, our clients can recover 30% of our services. Enough to invest better, and further.

🚀 Monsieur Développeur: Your Digital Partner for Ambitious SMEs

🌐 High-Performance, Custom Websites

Whether creating a unique site or revamping your existing platform, we transform your online presence:

Custom website creation: Designs aligned with your brand to captivate your clients 🎨

Strategic redesign: Boost your conversions with a fast, SEO-optimized, user-centric site ⚡

🤖 Automation and Smart Tools

Simplify your processes and improve your efficiency with our innovative solutions:

AI Automation: Automated processes to boost your sales and satisfy your clients 📈

Online Booking: Intuitive platforms to offer a seamless experience, from booking to confirmation 🖥️

📢 Online Visibility and Growth

Maximize your audience and attract the right clients where they are:

Google Ads & Social Ads Campaigns: Targeted strategies to generate quality leads 🌍

🔧 Maintenance and Support

Stay focused on your business while we ensure your site's performance:

Proactive maintenance: Regular updates, enhanced security, and responsive technical support 🛠️

✨ Why Us?

At Monsieur Développeur, we understand the challenges of small and medium-sized businesses. With our expertise, we design digital solutions that turn your ambitions into success.

📞 Contact us today to accelerate your growth!

Specializing in digital creation and strategy, Eweb Agency brings together all interactive professions for businesses and brands. Our job is to invent and implement digital strategies that perfectly meet our clients' challenges (online sales, brand identity, startup launch, web portal creation, etc.).

Thanks to the diversity of talents at Eweb Agency, we combine consulting, creativity, and technical expertise within the same agency to achieve optimal efficiency.

- Consulting: Brand Strategy | Digital Strategy

- Graphic Creation: Visual Identity | Graphic Charter | Webdesign

- Development: Brand / Institutional Website | E-commerce | Web Portal

- Webmarketing: Natural Referencing (SEO) | Community Management

Certified Great Place To Work® France

OUR MISSION

We support entrepreneurs and tech decision-makers in innovating and succeeding with their product(s) by having a strong impact on their end-users. We are involved in the entire product development cycle: digital strategy, user research, design, development, deployment, and application maintenance and evolution.

Our approach is based on 3 pillars:

1/ Understanding your business and operational challenges

Each collaboration is based on the need to solve business problems and create value for your activity. This impact-driven approach is at the core of our value proposition.

2/ Designing intuitive and elegant applications

We place great importance on UX and UI to reconcile design and efficiency.

3/ Developing on solid foundations

The product code must be maintainable & tested, and use the latest versions of the most performant open-source technologies.

OUR EXPERTISE

Developing new products is our core business. We undertake 3 types of missions:

1. Identify growth opportunities

Our teams work alongside you to identify projects that will enable you to secure your growth drivers, and by carrying them out with you to ensure return on investment.

2. Design & develop the right products

Our teams work for the success of your projects, either by taking charge of your product's realization from design to deployment, or by reinforcing your teams to provide the expertise that will improve the efficiency of your production.

3. Support your organization's growth

Our experts work with your product and tech teams to enable your organization and your IS to grow effectively (methodology, HR organization, support in hunting for missing talents, training, audit, and identification of scalability levers).

Wink Stratégies is a creative communication/marketing/public relations agency that helps companies and organizations communicate better, position themselves, and innovate intelligently.

Wink is an agency that combines strategy, creativity, and social engagement to help organizations turn their ideas from intention into impact.

We think, we create, we act — to advance useful, human, and inspiring projects.

Meaning. Beauty. Concrete results.

Wink transforms strong ideas into intelligent strategies, values into impactful campaigns, and commitments into visible and measurable actions.

A 360° communication agency, Wink Stratégies is composed of a multidisciplinary team, including project managers, communication and web marketing specialists, graphic designers, web designers, web developers, SEO specialists, social media specialists, and public relations specialists. The diversity of in-house talent allows for each project to be approached with a global and coordinated vision.

What sets the agency apart is its team of passionate individuals, combining creativity and rigor to develop innovative and effective solutions for its clients. Personally committed to the success of projects, each team member ensures that the client is fully satisfied with the results as well as with the contact with the agency throughout the project.

Since 2015, the agency has received several awards in Web design and media creativity and was nominated in the Agency of the Year category at the prestigious AWWWARDS.

Aktan transforms your strategic and operational complexity into simple actions with impact

Aktan is a boutique consulting agency, by your side to succeed in the complexities of growth, innovation, and transformation projects. We are an actor of change capable of exploring and supporting your structuring or one-off challenges, with expertise and desirability, from idea to market. We like to durably transfer to you the concepts, methods, tools, and practices necessary for your transformations.

Sérieux is an independent UX agency specialized in experience design, digital strategy and design systems.

We support brands, institutions and startups in creating useful, accessible and high-performing interfaces.

Our approach combines method, clarity and purpose — we design experiences that matter, both for users and business impact.

Snowlab is a digital agency for web and mobile development, bringing together developers who are above all passionate. Our goal is not only to respond to your challenges but also to bring you innovative ideas and support to exceed your expectations.

Share Out est une agence web coopérative spécialisée dans la création, la refonte et la maintenance de sites internet sur mesure pour PME, associations et entrepreneurs. Expertise WordPress, Prestashop, React, SEO et sécurité. Conseil personnalisé, accompagnement projet, développement web évolutif. Service transparent, accessible et engagé.

Presentation
Piwio is an engineering firm based in Villeurbanne, specializing in the design of connected objects and the exploitation of their data. Founded in 2018, the team supports projects from concept to production.

Key Services
Feasibility: identification of technical challenges and technological choices. Proof of Concept: rapid validation of hypotheses and essential functions. Prototype: creation of a first version adapted for future production. Industrialization: optimization of physical, software, and regulatory aspects for mass production.

Approach
Piwio offers complementary and combinable services, on a turnkey or step-by-step basis, with particular attention paid to data exploitation to maximize product value.

Added Value
Pragmatic support, focused on feasibility and the transition to industrialization. Contact Piwio to transform a connected idea into an industrial product.

At Eview-Software, we are your strategic partners in growth and success. 


We work with mid & large international corporations throughout Europe and US in projects that demand leading-edge software development skills. 



With over 14 years of experience, we specialize in:

💼 Management & Consulting: Streamline your workflow, enhance productivity, and achieve better results with our expert management and consulting services.

💻 Software Development: Unlock the full potential of your business with our creative and business-oriented software solutions that drive earnings and scale-up companies.

📱 Mobile App Development: Power your business with high-functional apps that support operations and generate significant revenue.

🎯 Marketing Consulting: Target the right clients and boost sales with our effective marketing strategies.

Who are we?
Pilag is an industrial product design studio based in Montpellier, founded in 2012. It supports companies and project leaders in the creation of eco-designed, industrialized, easy-to-use, and desirable products.

Services
Product design, transforming ideas into prototypes, Proof of Concept (PoC) support, and renewal of existing product lines.

Approach
Pilag prioritizes eco-design and simplicity of use, keeping industrial feasibility at the heart of the process.

Added value
Pragmatic support to transform an idea — or the lack thereof — into a tangible product, ready for industrialization and the market.

Contact
To discuss a project, Pilag offers tailor-made support from the idea to the industrialized product.

Think With is a French design and innovation agency founded in 2023. It supports organizations and projects to solve current problems, accompany transformations, and imagine desirable futures.

Services: human-centered design thinking conception; materialization of user journeys; creation of transversal solutions in the form of digital services, living spaces, objects, or organizations.

Approach: simplicity of conception, accuracy of message, and sustainable vision of design. The team rethinks models and uses to propose effective, viable, and ethical solutions.

Added Value: pragmatic support that reconciles efficiency, viability, and ethics for desirable futures.

Think With offers a strategic partnership to transform ideas into tangible experiences.