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fstck.co

Paris, Île-de-France, France

Independent digital agency delivering end-to-end web and mobile product development through a collaborative, user-centered approach.

Fullstack is a digital agency that conceives and builds digital products. They help clients launch ambitious digital projects on time and with a frictionless process. As an independent, human-sized agency, they offer end-to-end services spanning strategy, design, engineering, and production. Their capabilities cover websites, e-commerce, mobile and web applications, APIs, intranets and SaaS, with a strong emphasis on UX, UI, performance, and maintainability. The team champions collaboration, transparency, and long-term partnerships, delivering practical, action-oriented solutions and a commitment to quality. They combine design thinking, rigorous engineering, and a pragmatic delivery process to create user-centered products that drive growth and engagement.

Mission statement

Our mission is to deliver high-quality digital products through a human-sized, transparent, and collaborative team, centered on user needs, pragmatism, and lasting partnerships with clients.

Products & Services

Sites Web Service

Créez des sites internet beaux et utiles qui répondent à vos besoins.

fstck.co/expertises/sites-web
  • Site Web Corporate — Créez Votre Image de Marque
  • Sites Web E-Commerce — Boostez Vos Ventes
  • Applications SaaS — Automatisez Vos Processus
  • Site WordPress — Gérez Votre Contenu Facilement
  • Sites CMS — Simplifiez Votre Gestion
  • Sites Web Vitrine — Présentez Vos Services

Applications mobiles Service

Des apps iOS et Android de haut niveau pour améliorer l'engagement client.

fstck.co/expertises/applications-mobiles
  • Développement Android — Créer Des Apps Android Performantes
  • Développement iPhone — Lancer Des Apps iOS Sophistiquées
  • Développement iPad — Concevoir Des Apps Adaptées Pour iPad
  • Développement PWA — Offrir Une Expérience Mobile Instantanée
  • Développement ReactNative — Développer Des Apps Interopérables

Applications Métier Service

Des outils sur mesure pour optimiser vos processus métiers et améliorer la collaboration interne.

fstck.co/expertises/applications-metier
  • Développement Applications Métier — Automatisez Vos Processus Métier
  • Développement Intranet — Optimisez La Collaboration Interne
  • Développement Extranet — Facilitez Les Échanges Avec Vos Partenaires
  • Développement Mobile — Accédez À Vos Outils En Mobilité

Branding Service

Créez une image de marque forte et durable pour distinguer votre entreprise sur le marché.

fstck.co/expertises/branding
  • Identité de marque — Établit Une Connexion Émotionnelle
  • Logo — Symbolise La Marque
  • Charte graphique — Établit Une Identité Visuelle Cohérente
  • Charte éditoriale — Assure Une Communication Cohérente
  • Design graphique — Créé Des Visuels Impactants

Conception Service

Développez des expériences digitales mémorables grâce à une conception centrée sur l'utilisateur.

fstck.co/expertises/conception
  • Comprendre les besoins et objectifs — Aligner Sur Les Attentes
  • Design thinking et prototypage — Valider Les Concepts Rapidement

Stratégie digitale Service

Optimisez votre présence en ligne grâce à une stratégie digitale personnalisée et efficace.

fstck.co/expertises/strategie-digitale
  • Audit & étude de marché — Perform Strategic Audits
  • Acquisition — Boost Traffic And Leads

Hébergement Service

Hébergement fiable pour assurer la sécurité et la performance des sites web et applications.

fstck.co/agence
  • Hébergement sécurisé — Assure La Sécurité Des Données
  • Support technique 24/7 — Résout Vos Problèmes Rapidement

Performance Service

Maximize website and application efficiency for enhanced user experiences.

fstck.co/agence
  • Performance Monitoring — Ensure Optimal Performance
  • User Experience Enhancement — Enhance User Engagement

Market Segments

Billion USD 0 50 100 150 200 250 300 Enterprise appl… Mobile app deve… Web and e-comm… Digital product… Cloud infrastru… Market Size (Billion USD)
0% 2% 4% 6% 8% 10% 12% 14% 16% 18% 20% 22% 24% 26% CAGR Growth Potential

Enterprise application development

End-to-end design, build, and delivery of custom enterprise and mobile applications, including rapid delivery frameworks and third-party integrations to meet complex business requirements.

Market size: $162.3B CAGR: 21.6%
Multiple recent market-research reports on application/enterprise application development show 2024–2025 market sizes ranging from roughly USD 138B to USD 308B and projected high growth. MRFR reports a 2024 market size of USD 162.33B. Fortune Business Insights reports USD 138.41B for 2025 and projects a 21.60% CAGR (2026–2034). Precedence Research reports USD 307.98B for 2025 with a ~20.33% CAGR (2026–2035). Using these sources, a conservative current market-size estimate is anchored to MRFR (USD 162.33B) and growth potential is represented by Fortune’s 21.6% CAGR, consistent with other estimates.

Mobile app development

Design and development of native and cross‑platform mobile applications for consumer and enterprise use cases, covering architecture, rapid MVP delivery, testing and post‑launch support.

Market size: $300.0B CAGR: 14%
Multiple recent market reports for the mobile application / mobile app development space show 2025–2026 market values between about USD 197B and USD 331B, with reported CAGRs ranging from ~9% to ~23.8%. I selected a rounded market size of ~USD 300B (midpoint of the 196.8–330.6B range) and a conservative-to-moderate CAGR of 14% (median of published CAGR estimates, excluding an aggressive outlier) to represent current market scale and plausible growth for mobile app development services.

Web and e-commerce development

Designs and builds conversion-focused websites, e-commerce stores, and sales funnels with managed hosting, performance optimization, security, and ongoing maintenance.

Market size: $57.3B CAGR: 9.1%
Used the Web Development market as the primary comparable (MRFR: $57.31B in 2024) as a baseline for web + e‑commerce development services. Adjacent market data for ecommerce platforms (Fortune Business Insights: $11.55B in 2025, high CAGR) and e‑commerce website builders (Business Research Insights: ~$11.26B in 2025, 9.6% CAGR) indicate faster growth for e‑commerce–focused tools and hosted offerings. Blended these signals into a modestly higher CAGR (~9.1%) reflecting a mix of traditional web development services (larger share, lower CAGR) plus faster‑growing ecommerce platform/builder components.
TH TH GL 3 references

Digital product strategy and development

End-to-end product strategy, user research, UX/UI design, prototyping, and custom development to build and scale user-centered digital products.

Market size: $90.0B CAGR: 12%
Used provided digital-transformation market reports as parent-market anchors (USD 1.11T–2.63T in 2025). Assumed product strategy & custom product development is a subset of application development/consulting services (~4–8% of overall digital transformation spend). Applying that share to the midpoint of the reported ranges yields ~USD 60–140B; midpoint rounded to USD 90B. Growth potential (CAGR ~12%) is set slightly above conservative industry-services forecasts (MarketsandMarkets 9.1%) but below higher digital-transformation projections (Fortune BI 21.4%), reflecting strong demand for product-centric, AI-enabled development yet competitive pricing pressures.
TH MA 2 references

Cloud infrastructure and managed hosting

Provisioning, management, and ongoing support of scalable, secure hosting and infrastructure to ensure uptime, performance, and operational continuity.

Market size: $25.0B CAGR: 11.8%
Estimated global market size (~$25B) is based on reported hosting infrastructure services ($17.63B in 2024) and managed-hybrid/managed hosting figures (reported $24B–$32.5B in 2025). Growth potential (CAGR ~11.8%) is a blend of reported growth rates: MRFR hosting infrastructure CAGR 8.8% and managed/managed-hybrid hosting CAGRs reported ~13%–13.5%, producing a midpoint reflecting the broader cloud infrastructure and managed hosting segment.
20 MA TH 3 references

Related Organizations

Common Questions

What does Fullstack do?
Fullstack is a digital agency that conceives and builds digital products. They help clients launch ambitious digital projects on time and with a frictionless process. As an independent, human-sized agency, they offer end-to-end services spanning strategy, design, engineering, and production. Their capabilities cover websites, e-commerce, mobile and web applications, APIs, intranets and SaaS, with a strong emphasis on UX, UI, performance, and maintainability. The team champions collaboration, transparency, and long-term partnerships, delivering practical, action-oriented solutions and a commitment to quality. They combine design thinking, rigorous engineering, and a pragmatic delivery process to create user-centered products that drive growth and engagement.
What is Fullstack's role in the Enterprise application development market?
End-to-end design, build, and delivery of custom enterprise and mobile applications, including rapid delivery frameworks and third-party integrations to meet complex business requirements.
What is Fullstack's role in the Mobile app development market?
Design and development of native and cross‑platform mobile applications for consumer and enterprise use cases, covering architecture, rapid MVP delivery, testing and post‑launch support.
How was the Enterprise application development market size estimate for Fullstack calculated?
Multiple recent market-research reports on application/enterprise application development show 2024–2025 market sizes ranging from roughly USD 138B to USD 308B and projected high growth. MRFR reports a 2024 market size of USD 162.33B. Fortune Business Insights reports USD 138.41B for 2025 and projects a 21.60% CAGR (2026–2034). Precedence Research reports USD 307.98B for 2025 with a ~20.33% CAGR (2026–2035). Using these sources, a conservative current market-size estimate is anchored to MRFR (USD 162.33B) and growth potential is represented by Fortune’s 21.6% CAGR, consistent with other estimates.
How was the Mobile app development market size estimate for Fullstack calculated?
Multiple recent market reports for the mobile application / mobile app development space show 2025–2026 market values between about USD 197B and USD 331B, with reported CAGRs ranging from ~9% to ~23.8%. I selected a rounded market size of ~USD 300B (midpoint of the 196.8–330.6B range) and a conservative-to-moderate CAGR of 14% (median of published CAGR estimates, excluding an aggressive outlier) to represent current market scale and plausible growth for mobile app development services.
Fullstack — company overview