Web Development Firms in Lille

Kwantic: Your trusted digital partner.

8 seconds...

That's all the time you have to capture your customers' attention online. And that's exactly what you'll need to understand why Kwantic is the partner you're looking for.

Why? Because we are convinced that a successful digital project is more than just technology. It's an alliance between captivating design, high-performance technologies, and exemplary responsiveness.

With a team of over 30 passionate experts, we have already delivered more than 100 successful projects, meeting the specific needs of marketing, communication, digital & e-commerce departments, IT departments, and CTOs.

We offer a complete range of services to support your digital transformation:

• Design and development of showcase and e-commerce websites
• Website redesign and migration
• UX/UI Design
• Development of website factories
• Web and mobile applications
• High-performance SEO strategy
• SEA and Meta Ads
• Social Media Management
• Inbound and Outbound Marketing
• Optimization, tracking, CRO, and data analysis

What makes the difference:

• Guaranteed responsiveness: A response within 4 hours, because every minute counts
• Solid certifications: RGAA, Crédit Impôt Innovation, Eco-Design, Webperformance 2.0
• Unique approach: A blend of creativity, data, and science for measurable results
• Trust Kwantic to bring your ideas to life and boost your growth. Contact us today to discover how we can help you achieve your goals.

The entire Kwantic team looks forward to discovering your project!

Contact us today and let's see how we can accelerate your results.

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.

CUB3 supports companies that need a reliable partner to design, take over, or evolve a digital product. We work with a senior team capable of quickly understanding a context, setting a clear framework, and securing technical and product decisions.

We cover audit, architecture, web and mobile development, API integrations, cloud, DevOps, and maintenance. Our approach is pragmatic: prioritize what matters, make the project readable, limit risks, and build a healthy, maintainable, and sustainable solution.

Our added value is not limited to development. We help our clients regain visibility, control, and peace of mind on projects that are often critical to their business.

When you hire Dreambridge, you hire the perfect combination of Human + AI. We craft impactful digital experiences and help your team be their best selves. We design interactive experiences across Apple Vision Pro, Augmented Reality, Virtual Reality, Digital Installations, GenAI Design, Web, Mobile and new emerging technologies. And we use AI to make your human colleagues superhuman! We are a diverse team that comprises of professionals from Software, Advertising, Gaming, Design and Production. Headquartered in Amsterdam, in The Netherlands, we have worked with clients across The Netherlands, France, Sweden, Belgium, Luxembourg, Switzerland, USA and India.

La Crème French: Independent & Global.

Our main clients are > WW, Don Papa rum, Corength, Decathlon, Domyos, Alice Délice, Oney, L'Incroyable, La Redoute.

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Partner / CEO in charge of clients and strategy: Aurélien Bourblanc Past experience: Haptein Luxury Furnitures  Partner / Executive Creative Director: Juliette Livet Past experience: Monoprix, Clarins, Marionnaud, Carrefour, Unibail-Rodamco, Gulli, Arte, Canal+, Heineken

Communication & Development Director: Justine Bacq Past experience: Chronodrive / Total / Renault / Auchan / Culinarion / Ambiances & Styles / Unibail-Rodamco / DIAC / SNCF -----------------------------------------------------------------------------------

La Crème French is a medium-sized agency, based in Paris and Lille, expert in brand communication and brand empowerment.

In a co-creation logic, we believe that everyone can have a good idea, agency or advertiser, but that it is essential for this idea to be studied, data-driven, refined, polished, and perfectly executed to favorably and lastingly impact target audiences.

With around thirty cross-functional experts on a daily basis, La Crème French is both generalist and specialist, the perfect embodiment of new agency models: integrated, flexible, and dynamic. This great adaptability allows La Crème French to design and implement communication operations perfectly suited to current challenges, always in line with often compressed budgets.

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In print and digital, we are involved in advertising, global campaign creation, marketing activation, CRM activation, as well as below-the-line activities on all direct marketing or sales support media.  We also work on packaging design and corporate branding to ensure consistency and a global brand experience, both externally and internally.

Since our creation, we strive every day to increasingly satisfy our clients through creative and impeccable design, creation, and execution.

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It is through a cross-functional offering that we support brands in their success:  ° Study, through data analysis and understanding of target insights. ° Build, by creating and adjusting brand codes and strategies as closely as possible to clients. ° Produce, by playing with technical constraints and creating media related to the brand territory. It also involves proposing new formats with activation power.

° Deploy, as closely as possible to internal teams, on a daily basis, across all media or non-media formats in line with an effective plan.

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.

Specializing in the creation of custom websites, Adveris also brings together all interactive professions serving businesses and brands. Our job is to invent and implement digital strategies that perfectly meet the challenges of our clients (mobile application, website, start-up projects, online sales, brand identity, brand content, etc.).

The agency has 60 employees. Thanks to the diversity of talents at Adveris (creatives, UX designers, developers, web marketing experts, etc.), we combine consulting, creativity and technical expertise within the same agency, in order to achieve optimal efficiency.

- Development: Custom-made website (Wordpress, Symfony, React, Weblfow), Mobile application

- Consulting: Digital strategy, Online media plan

- Graphic creation: Artistic direction, Identity and graphic charter, Webdesign

- Webmarketing: Referencing (SEO / SEM), Community management

Adveris was elected "Digital Agency of the Year" by the 41st Grand Prix of the agencies of the year and is ranked 139th in the FrenchWeb ranking of the 500 leading French Tech companies.

In parallel, Adveris pays close attention to social and environmental issues. We were also rewarded with the « Silver » label of the EcoVadis extra-financial rating tool.

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.

The KNR agency is the benchmark e-commerce agency for fashion, luxury, and cosmetics brands. We support exceptional brands in implementing their digital tools.

Experts in Salesforce Marketing Cloud and Shopify Plus technologies, we develop tailor-made marketing and e-commerce solutions adapted to their needs.

Thus, we have put our know-how and expertise at the service of our clients by supporting them in: the creation or redesign of e-commerce sites, custom development of newsletters, or consulting on the Salesforce environment. All our solutions are adapted to your needs and simple to use, always taking care of the user experience.

The objective is to provide your brand with a high ROI solution that respects both your brand image and your online commercial objectives, in line with the expertise of a premium agency.

Today, companies such as Tag Heuer, Rimowa, L'Oréal, Maje, Sandro, Givenchy, Maison Alaïa, Etam, IKKS, Lancôme, Minelli, Yves Saint Laurent, Valentino, Undiz, Skinceutical and many others trust us for the development of tailor-made solutions.

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

What sets us apart:

We have no sales representatives.

We never have.

And we never will.

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

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

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

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

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

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

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

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

Our potential areas of action:

UI/UX Design & Branding

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

Technology

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

Product Strategy, CRO & Data

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

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

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

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

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

OUR AREAS OF EXPERTISE:

>>> USER EXPERIENCE >>>

UX research / UX design / UX writing

>>> USER INTERFACE >>>

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

>>> PROJECT MANAGEMENT >>>

Product positioning / Solution definition / Quality control / Project steering

>>> WEB DEVELOPMENT >>>

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

>>> MOBILE APP DEVELOPMENT >>>

Native /

Our team of developers works exclusively on React Native technology.

OUR CLIENTS:

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

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

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.

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.

At ALLOHOUSTON, we help SMEs and mid-to-large enterprises succeed in their digital transformation through custom software solutions that outperform standard SaaS.

Unlike traditional software vendors, we believe your business should not adapt to digital tools, but tools should adapt to your business. That's why we design, develop, and maintain personalized digital solutions, ranging from web and mobile applications to cloud platforms and AI solutions, all designed to integrate and evolve with your organization.

Why SMEs and Mid-to-Large Enterprises Work With Us

🔹 Your processes are too specific for standard software → We develop custom digital platforms tailored to your needs

🔹 You need fast and impactful results → We deliver an MVP in 3 months without compromising quality

🔹 You want a single team to manage the entire project → No intermediaries, a single team ensures continuity

🔹 Your software needs to evolve with your business → Our solutions are scalable and adapted to your growth

Our Solutions

✅ Business Platforms & Cloud Applications – Custom software solutions to digitize your operations

✅ AI & Data Analytics – Intelligent tools to optimize decision-making

✅ Process & Logistics Optimization – Automation and digital tools to improve operational efficiency

✅ Web & Mobile Applications – High-performance user experiences tailored to your business

Our Clients

We support CEOs, COOs, and CIOs of SMEs, mid-to-large enterprises, and large corporations who:

✔ Need custom digital tools to gain a competitive edge

✔ Are constrained by rigid SaaS or ERP software

✔ Are looking for scalable and high-performance digital solutions

🚀 Need software tailored for your business?

📩 Contact Us!

KAKKOÏ STUDIO | Digital creation studio since 2009.

At Kakkoï Studio, we firmly believe that every interaction, every design, and every campaign must reflect the true essence of those for whom they are created.

What sets Kakkoï Studio apart is our commitment to human relationships. We believe that every company has a unique story to tell, and we are here to help you share it authentically. Our team is your dedicated partner, ready to understand your aspirations and translate them into tangible results.

At Kakkoï Studio, we are more than just a digital creation studio. We are your creative partners, ready to transform your ideas into reality, with a single goal in mind: to meet your expectations while building a healthy, long-term relationship.

Our commitment to our clients goes far beyond simply providing services. We are dedicated to deeply understanding your needs, aspirations, and values. Each project is an authentic collaboration where your vision becomes our mission.

We are committed to delivering exceptional creativity, transparent communication, and tangible results. With Kakkoï Studio, you have a loyal and passionate partner, dedicated to transforming your ideas into impressive and lasting realities. Our success is measured by your satisfaction and the quality of the relationships we build together.

EXPERTISE

• Strategy / Creation

• Digital Marketing: Corporate Website - Institutional Website - Application and Business Platform - UX Design - Event Website - Performance - E-commerce - BI Reporting Tool, Data...

• Content Marketing: Branding - Storytelling - Video (Promotion, Engagement, Pedagogy, Awareness, Interview, Motion Design, etc.) - Interactive Infographics - Static Infographics - Emailing.

• Customer Engagement: Loyalty Program - CRM - Activation Campaign.

• Internal Marketing: Internal Communication Campaign - Incentive / Challenge - Sales Force Activation - Employer Branding - Onboarding.

INDUSTRY SECTORS

• Banking & Insurance: Allianz, BNP Paribas, Covéa, Crédit Agricole, HSBC, Natixis, LCL, MAAF, MAIF, ...

• IT / Telecoms: Orange, Idemia, Ingenico, Marlink, W-HA, ...

• Energy: EDF, Enedis, Total, Camfil, ...

• Construction / Building Materials: Bouygues Construction, Saint-Gobain, Colas, ...

• Automotive: Continental, BestDrive, Bridgestone, Pirelli, Toyota, Volkswagen, Saint-Gobain Sekurit, ...

• Mass Retail: Auchan, Carrefour, Decathlon, Intermarché, Pernod-Ricard, ...

• Defense & Security: Thales Group.

• Others: Eurovia, Ipsos, Lufthansa, ...

-> 1500 clients supported

-> more than 350 sites created

-> recognized expertise for 20 years

Tribu and Co designs and develops websites for professionals and communities.

Our technical expertise and our marketing approach are the pillars of our achievements.

We work for large groups, SMEs and e-merchants: Crédit Agricole, Keolis, La Nouvelle République, Hervé Thermique, Chassay Automobiles, Vernet Group, Repartim, Mutualité sociale agricole, Scrap Cooking ...

La Tribu is above all an incredible team that knows each other by heart. SEO specialists, developers, designers, project managers have been working together for many years to offer you global expertise in your web project.

At every stage of the project, we advise, support, co-pilot...

Small or large project, to create, overhaul or boost your site, we become your digital partner.

Centoria services helps SMEs develop their IT in a broad sense, software, applications, infrastructure by outsourcing their needs. They are entrusted to our multidisciplinary team made up of talents recruited on permanent contracts and evaluated by engineers with more than 20 years of experience in IT in France. Our team is based in our Casablanca (Morocco) subsidiary.

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

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

Our expertise

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

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

Why choose us?

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

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

TurnK is an integration agency, we support companies in the integration, proper configuration, and automation of their business tools.

TurnK's objective: to make companies' lives easier by eliminating manual tasks, and freeing up time for teams to focus on their core business.

We operate in two main areas:

- Integration: CRM, ERP (Invoicing), Customer Service, Marketing Automation

- Creation: 100% custom application development, PWAs (web apps), and website creation (showcase, e-commerce, web app...)

We have already helped Michelin, Barnes, Café Joyeux, and PSG optimize and automate their internal operational processes.

We are a partner agency with over 50 publishers like Hubspot, Salesforce, Webflow, Zendesk, Bubble, Xano, Weweb...

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

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

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

🎯 Our difference?

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

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

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

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

✅ Design a custom application (web/mobile)

✅ Optimize an existing product or user journey

✅ Create value through clear UX and agile development

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

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