Product Design Agencies in Lille

At the crossroads of a consulting firm, an agency, and an IT services company, NEXTON cultivates an innovative positioning. Thanks to our experts, we support our major clients and pure players in their digital evolution and innovation strategies.

Our service offering:

DIGITAL

Create, improve, and bring your product or service to life

COMMUNICATION & MARKETING

Create, animate, and make your brand perform

STRATEGY

Support, structure, and evolve your organization

A committed company, NEXTON is certified ISO 9001, 27001, Ecovadis Gold top5% (78/100), Gender equality index 92/100.

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.

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.

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 offer comprehensive expertise in designing tailor-made SaaS solutions, combining web development, UX/UI design, and product strategy to create unique, user-centric experiences.

At Polara Studio, our experts spend 50% of their time building startups and 50% assisting clients.

Web software/applications and SaaS only.

Our strength? We ONLY do this. Since 2015. Our startups work, and we know the challenges of launching entrepreneurial projects by heart.

Our areas of expertise:

🤖 AI & Automation

We integrate AI into the core of your tools and products to automate, optimize, and accelerate your performance. From intelligent assistants to advanced data processing, we transform your challenges into concrete solutions.

🎯 Product Strategy

We clarify your product vision, define your positioning, and build an impact- and profitability-oriented roadmap — especially for SaaS models.

🚀 Product Management

From scoping to delivery, we manage your product with an agile, structured, and results-oriented approach.

💻 Software Development & Web Apps

We design robust, scalable, and high-performing SaaS platforms, business software, and web applications.

🧪 POC & MVP

Test, validate, iterate quickly. We turn your ideas into functional products ready to face the market.

☁️ SaaS & Scalability

Architecture, performance, security, subscription model: we build products designed for sustainable growth.

At iytro, we believe branding is more than surface-level beauty. It’s clarity, strength, and impact—the kind that turns heads and drives results.

Founded in 2019, iytro set out to help early-stage startups grow through flexible, part-time CMO support. Behind the scenes, our creative crew was the hidden engine—designing the brands, decks, and digital experiences that powered those missions. That team has since evolved into iytro creative studio: an independent powerhouse that blends design craft with the marketing sharpness of our iytro roots. With 150+ successful missions across industries, we know how to turn a vision into a brand that delivers—sustainably, authentically, and powerfully.

What we create

Brand Foundations :

• Strategic brand platforms that define your positioning and personality
• Distinctive naming that captures your essence
• Visual identity systems that work across every touchpoint

Digital Presence :

• Custom website design and development that converts
• User experiences that tell your story seamlessly

Brand Assets :

• Compelling pitch decks and presentations
• Marketing collateral that drives action
• Brand guidelines that ensure consistency
• Packaging, campaigns, and everything in between

Our approach

Design isn’t decoration. It’s strategy made visible. It’s how creativity becomes growth. We design with honesty, boldness, and empathy—never overcomplicating, always staying sharp.

Who we work with

Startup founders launching their first brand

Venture capital firms supporting their portfolio

Corporates with new ventures to prove

Scaleups facing marketing gaps or brand challenges

Real branding. No jargon. No fluff. Just your vision—brought to life.

At wiiv., we're here to make your brand a hit, here's the proof:

→ Our specialty?

We have our own brand.

We created it from scratch and are taking it to the top day by day.

We know what it's like to create a product, find its first customers, justify its prices. We live what we advise you, better yet: we test our own advice in real market conditions.

We have supported great brands such as: CIC, Crédit Mutuel, TDF, BMW, mini, LDLC, as well as awesome startups: DailyHack, le Lab de l'endo, Kera, Billy trimmer, and many others.

→ Our specialty, creating TOP brands:

To make your brand unique in your market, here is our method:

• Understand your WHY, your goals, your context, your strengths, and your risks
• Strategically position your brand to make it unique in the market
• Create an identity that makes people want to buy, regardless of the price
• Turn your visitors into customers and your customers into ambassadors

→ What we bring you concretely:

→ A founder's vision, not a consultant's

We launched our own product brand. We know the reality on the ground, not just the theory.

→ Strategic branding, not just cosmetic

Logo + colors are 20% of the job. The remaining 80%? Your positioning, your differentiation, your brand promise.

→ Straightforward and no-nonsense advice

If you're not ready for premium branding, we'll tell you. If you're targeting the wrong market, we'll tell you that too.

→ A 3-step method:

• DNA Branding: Discover the brand's WHY
• Strategic Branding: Market positioning and differentiation
• Communicative Branding: Visual identity that reflects the strategy

→ What we love to do for you:

• The branding book (a summary of your entire brand and its strategic axes)
• The strategic axis
• The logo, design, and graphic charter
• Packaging (we love it!)
• And much more

→ Our goal: to make your brand a hit

Our challenge: Make your brand a hit!

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

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.

Lets Progress is a remote tech team based in France, founded in 2021. The company helps organisations digitalize by combining experienced professionals with a practical, outcome-focused approach.

Core services: Technology Consulting - advising on cost-efficient technology choices; UX/UI Design - creating user-centred experiences; Product Development - aligning technical delivery with product vision; Maintenance & Support - ensuring continuity and improvement.

Approach: Iterative and pragmatic: rapid prototyping, clear technology decisions and continuous collaboration to deliver scalable results.

Why choose Lets Progress: remote-first flexibility, a compact team of qualified specialists and end-to-end coverage from strategy to long-term support.

We are SaaS solution publishers, and each product we develop is the result of years of experience and process optimization, particularly with our development studio. Our teams master all the steps necessary to design, develop, and launch high-performance SaaS solutions, always with a focus on continuous innovation.

FLEXILAB, created in 2015, represents the culmination of over two decades of experience in the technological field, marked by leadership focused on functional product design, software architecture, and efficient project management.

This company stands out for its commitment to functional customer support. Focused on services and software publishing, FLEXILAB offers cutting-edge expertise in application design and IT project management.

We support companies in their strategic and digital transformation — from idea to execution.

Our strength lies in co-construction: we work with you, never in your place.

Because real transformation can’t be outsourced — it’s built together.

From strategy to product, we turn ambition into tangible growth and lasting impact.

An emotional connection. That's what we build between brands and their communities. Our clients benefit from our unique approach, based on market research and brand strategy, with a refined collaborative process designed to cultivate trust and build your company's reputation.

Our approach is based on 4 pillars:

• Brand, acquisition, or operational Strategy.
• Branding, adapted to your growth stage.
• Web, for a frictionless user experience.
• Growth, to increase your visibility and revenue.

Our Vision

A forward-thinking and innovative vision of our profession: that is what characterizes Flying Saucer Studio. Since the agency was founded in 2015, our international team has been present in France, Switzerland, the United States, and is fully remote. All our processes are adapted for SMEs and Startups to deliver quality work within remarkable timeframes and costs.

Finally, our leaders are renowned creatives with multiple FWA, Webby Awards, Gold Awards, and are also mentors for many accelerators such as Techstars and Alchemist.

Our Purpose

Our purpose? We believe in Positive Impact; in the power that small and medium-sized structures have to act quickly, solve major problems, and change the world positively. We believe in innovative entrepreneurs; who know how to combine economic success with benefits for the community.

Our support has contributed to the success of major fundraising rounds, over €20M in Europe and North America.

A few examples of our creations?

Our international clients come from various industries: FinTech, HealthTech, SAAS, B2C, B2B, Hardware, AI, E-commerce; our expertise adapts to all your objectives. You can also find them in TechCrunch, the NY Times, USA Today, and many other media outlets.

Founded in 2011, Eleven Labs is a web & AI consulting and engineering agency recognized for its technical excellence and the quality of its profiles. With 100 'astronauts' and over 500 completed projects, we support companies like Radio France, Decathlon, Sephora, The Fork, Société Générale, 20 Minutes, Citeo, and Believe every day.

Our role is to provide cutting-edge expertise to frame, secure, and accelerate the most demanding digital transformations. We intervene from the upstream phase with audits and strategic consulting to secure decisions, then we design and deliver robust and sustainable solutions through tailor-made delivery.

Our expertise:

🪐 Audit & technological consulting

🪐 Custom web development

🪐 Cloud & DevOps

🪐 Data engineering & AI

Our AI Lab designs artificial intelligence agents and solutions (AI agent, RAG, LLM) focused on business value. We develop custom agent architectures, connected to company systems and data (via MCP servers), to automate processes.

Our difference lies in collective intelligence. We are convinced that value comes above all from the collective, and that experts augmented by their ability to share, challenge, and build together go further. On a daily basis, we rely on demanding standards: clean architecture, code quality, FinOps, and DevSecOps integrated from the design phase. This rigor allows us to deliver reliable solutions.

With a team boasting over 20 years of experience,KREAPP stands out in the creation of tailor-made business applications. We have evolved, progressing from designing applications for large corporations to developing custom solutions for SMEs. Our journey is marked by ongoing success, demonstrated by our expertise in end-to-end application development, from the initial idea to concrete implementation.

Our team is the heart of our strength. Composed of a Product Owner, a designer, a UX specialist, Fullstack developers, and a manager—all experts and seniors in their field—we have the skills needed to turn your ideas into tangible realities. We support decision-makers and entrepreneurs at every stage, from ideation to resolving specific business challenges.

We understand that each project is unique. Our approach consists of providing fully tailored solutions to your specific needs. Whether it's digitizing your processes, developing business plans, defining requirements, conducting market studies, or implementing software solutions, KreApp stands by your side.

As your innovation partner, KreApp goes beyond simple application development. We provide strategic support in marketing, research and development, expertise in software architectures, and much more. Whether you're looking to develop a custom application or personalize existing software, our goal is to propel your business to the forefront of technology.

Our human-scale structure, combined with our professionals' expertise, gives us remarkable agility. We are able to react quickly and efficiently, ensuring the implementation of customized software solutions that perfectly meet your expectations.

KREAPP is ready to turn your vision into digital success. Contact us to begin a partnership that will redefine the potential of your business.

Together, let's create digital solutions for the future.

A digital production studio committed to meet tomorrow's challenges by building eco-designed solutions, with the latest technological innovations.

We make digital solutions that are more efficient, more secure and less resource-intensive.

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

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

Depuis 2015, Wolfox répond aux besoins du marché en travaillant sur des design d'expériences digitales innovantes et adaptés à vos attentes grâce au design user-centric.

Plus de 150 clients B2B et B2C nous ont fait confiance pour créer des expériences utilisateurs mémorables et des interfaces digitales attrayantes et intuitives.

NOTRE TERRAIN DE JEU

Recherche

Pour comprendre au mieux les besoins de vos utilisateurs, nous effectuons des interviews et des sondages. Nous réalisons ensuite des personae pour cibler davantage ce qui rendrait votre interface plus engageante et intuitive. Suite à nos résultats, nous sommes capables d’établir un parcours utilisateurs pertinent et d’imaginer les principales fonctionnalités.

Ateliers

Selon les besoins de votre projet, nous vous proposons différents ateliers groupés. Le Design Sprint est par exemple une méthode d’innovation qui vise à accélérer la créativité, ainsi que la résolution de problèmes sur un produit. En seulement quelques jours, nous travaillons en collaboration avec nos clients au travers de différents ateliers, pour imaginer, tester et prototyper une idée.

Audit UX/UI

L'audit est une évaluation de l’interface utilisateur d’un site web ou d’une application déjà existante. Selon différents critères tels que l’architecture, le parcours utilisateurs, le choix des couleurs ou des icônes, nous allons pouvoir faire un état des lieux des différentes fonctionnalités et fournir des recommandations. Nous effectuons aussi bien des audits UX, que des audits UI.

Création UX

Après avoir imaginé les principales fonctionnalités du futur site/application, nous sommes en mesure de créer des wireframes. Cette étape nous permet de concevoir l’interface utilisateur en créant des maquettes en noir et blanc où nous plaçons les premiers éléments qui constitueront la future solution digitale.

Création UI

Une fois que les wireframes sont prêts, on peut passer à la création UI (User interface). Pour mener à bien cette étape nous effectuons une veille graphique pour trouver le design le plus adapté à votre solution. Nos designers s’attèlent ensuite à la création d’un design system complet, avant de passer à l’intégration UI des maquettes.

Consulting

Notre meute se met à disposition de votre équipe et prend part au quotidien de votre entreprise pour étudier et comprendre au mieux vos besoins. Nous étudions rigoureusement les attentes et le comportement des utilisateurs sur votre produit, pour vous proposer un suivi continu et garantir la meilleure expérience d’un point de vue UX et UI.

Webflow

Vous souhaitez créer un nouveau site web ou améliorer l’interface d’un site web existant ? Nos designers sont en mesure d’intégrer les maquettes UI sur le logiciel de création de sites nommé Webflow. Il s’agit d’un outil qui permet de concevoir, enrichir et lancer des sites personnalisés et fonctionnels, sans avoir besoin de connaissance en développement.

Vous souhaitez en savoir plus ? N'hésitez pas à visiter notre site www.wolfox.co ou envoyez un mail à thepack@wolfox.co.