{"schemaVersion":2,"listingUrl":"https://haycion.com/advisors/fstck-co","markdownUrl":"https://haycion.com/advisors/fstck-co.md","jsonUrl":"https://haycion.com/advisors/fstck-co.json","name":"Fullstack","headline":"Paris-based digital agency that designs and builds end-to-end web, e‑commerce and mobile products with user-centered design.","firmType":"Agency","website":"https://fstck.co","location":"Paris, Île-de-France, France","status":{"trust":"unclaimed","text":"Unclaimed: compiled by Haycion from the firm's public website, not reviewed by the firm"},"updatedAt":"2026-10-15T21:14:22.529Z","extractedAt":"2026-10-15T21:13:08.111Z","dateLine":{"kind":"checked","date":"2026-10-15T21:13:08.111Z"},"about":"Building integrated, user-centered platforms that simplify complex ticketing and event operations, Fullstack is recognized for combining collaborative design and technical delivery. The firm is hired to consolidate sales, ticketing and event management into a single SaaS workflow; its work includes conceiving a SaaS online ticketing and integrated event platform for Disneyland Paris.","intro":"Turns digital concepts into operational platforms and accelerates customer response; one project achieved first contact in under an hour.","titlePhrase":"End-to-end Digital Product Agency","agentUrl":"https://nowen.ai/agents/fstck-co","contactUrl":"https://haycion.com/advisors/fstck-co/contact","boonFrontDoor":{"url":"https://boon.ai/agents/fstck-co","label":"Send Fullstack a request on Boon","sub":"Boon forwards it to Fullstack and invites them to reply."},"facts":[{"label":"Engagement models","value":"Project, Retainer, Outsourced team"},{"label":"Founded","value":"2014"},{"label":"Languages","value":"French, English"},{"label":"Works in","value":"France, Europe, United States"}],"idealClient":{"stages":["Established business","Enterprise"],"sizes":["11 to 50 people","More than 1,000 people"]},"fit":{"goodFit":["An established business or an enterprise with 11 to 50 people or More than 1,000 people","In entertainment, e-commerce, SaaS, healthcare, travel, real estate or energy","Based in France, Europe or the United States"],"engagement":[{"label":"Project","definition":"A defined scope with one outcome."},{"label":"Retainer","definition":"Ongoing work on a recurring basis."},{"label":"Outsourced team","definition":"The firm's people run delivery alongside yours."}]},"specialisms":[{"slug":"web-and-design","label":"Web and design","hubUrl":"https://haycion.com/advisors/specialism/web-and-design"},{"slug":"brand-and-positioning","label":"Brand and positioning","hubUrl":"https://haycion.com/advisors/specialism/brand-and-positioning"},{"slug":"marketing-strategy","label":"Marketing strategy","hubUrl":"https://haycion.com/advisors/specialism/marketing-strategy"},{"slug":"technology-and-data","label":"Technology and data","hubUrl":"https://haycion.com/advisors/specialism/technology-and-data"},{"slug":"seo-and-content","label":"SEO and content","hubUrl":"https://haycion.com/advisors/specialism/seo-and-content"}],"services":[{"name":"Website design & development","description":"Works with clients from brief to launch to design and build end-to-end web products using user-centered design."},{"name":"E‑commerce platform development","description":"Designs and develops end-to-end commerce platforms using user-centered design to deliver online sales experiences."},{"name":"Mobile app design & development","description":"Creates prototypes through to production for mobile products following user-centered design and technical implementation."},{"name":"Custom business & SaaS applications","description":"Builds custom business and SaaS systems, translating client requirements into scalable, production-ready platforms as with the Disneyland Paris ticketing SaaS."},{"name":"Brand identity & visual branding","description":"Develops brand identity and visual systems to align product positioning and consistent user experiences."},{"name":"UX/UI design & prototyping","description":"Produces UX strategies and interactive prototypes to validate user flows before engineering handoff."},{"name":"Digital strategy & webmarketing","description":"Defines digital strategy and webmarketing plans that align content, SEO and product goals."},{"name":"Hosting, maintenance & performance","description":"Manages hosting, maintenance and performance work to keep products operational after launch."}],"proofPoints":[{"title":"prospection & qualification commerciale","url":"https://fstck.co/expertises/agents-ia","metric":"Gain observé : jusqu'à −80 % de temps de qualification.","client":"Agents IA","summary":"Reduced qualification time by up to 80%."},{"title":"support client","url":"https://fstck.co/expertises/agents-ia","metric":"Gain observé : premier contact en moins d'une heure.","client":"Agents IA","summary":"Achieved first contact in under one hour."},{"title":"back-office & reporting","url":"https://fstck.co/expertises/agents-ia","metric":"Gain observé : zéro ressaisie manuelle des données qualifiées.","client":"Agents IA","summary":"Eliminated manual re-entry of qualified data."},{"title":"diagnostic","url":"https://fstck.co/","metric":"Tarifs affichés, diagnostic gratuit de 30 minutes.","client":"Studio IA Merlin","summary":"Offers a free 30-minute diagnostic."},{"title":"Contact response time","url":"https://fstck.co/contact","metric":"On revient vers vous sous 24h max.","summary":"Responds within 24 hours."},{"title":"Agency experience","url":"https://fstck.co/agence","metric":"Notre équipe délivre la même qualité de service à nos clients depuis maintenant plus de 10 ans.","summary":"The team has delivered consistent service quality for over 10 years."}],"industries":[{"slug":"entertainment","label":"Entertainment","hubUrl":"https://haycion.com/advisors/industry/entertainment"},{"slug":"e-commerce","label":"E-commerce","hubUrl":"https://haycion.com/advisors/industry/e-commerce"},{"slug":"saas","label":"SaaS","hubUrl":"https://haycion.com/advisors/industry/saas"},{"slug":"healthcare","label":"Healthcare","hubUrl":"https://haycion.com/advisors/industry/healthcare"},{"slug":"travel","label":"Travel","hubUrl":"https://haycion.com/advisors/industry/travel"},{"slug":"real-estate","label":"Real Estate","hubUrl":"https://haycion.com/advisors/industry/real-estate"},{"slug":"energy","label":"Energy","hubUrl":"https://haycion.com/advisors/industry/energy"}],"notableClients":["Disneyland Paris","Comexposium (Who's Next)","Stéphane Plaza Immobilier","Jet Monde","Ergalis","Sanofi","EDF","Music & Opera"],"certifications":[],"faq":[]}