What Fullstack does

Fullstack is an independent, full-service digital agency headquartered in Paris (8th arrondissement, 60 rue François Ier) with an additional workshop in Ivry-sur-Seine. Founded in 2014 by Sébastien Thiriet and Noam Ouaknine, the firm operates as a multidisciplinary team of approximately 10 people delivering strategy, design, development, and ongoing maintenance across the digital product lifecycle. It serves clients ranging from French SMBs to CAC 40 enterprises, with named engagements spanning Disneyland Paris, EDF, Sanofi, Havas, Sarenza, Covea, Stéphane Plaza Immobilier, Amadeus, and Adisseo, among others. The agency has reportedly completed more than 300 projects since 2007 and maintains unusually long client relationships averaging 5–15+ years.

The agency's technical footprint spans web (PHP/Laravel, NodeJS, React, Vue.js, Symfony, WordPress), e-commerce (Magento 1/2, Prestashop, Shopify, WooCommerce with ERP/CRM/Salesforce connectors), and mobile (native iOS/Android, React Native, Cordova, NativeScript, PWA). Service offerings are organized across UI/UX design, custom web development, e-commerce builds, bespoke business applications with ongoing TMA contracts, native and cross-platform mobile apps, branding, digital strategy, and managed hosting with a 2-hour recovery SLA. In 2025, Fullstack introduced a sub-brand called Fullstack Studio that focuses on AI-powered mobile applications, currently manifested in DoodleVerse (generative AI for children's drawings) and Acuity (AI-driven educational tutoring).

The business model is purely project-based professional services with no public pricing; every engagement begins with a scoping conversation and is quoted individually, typically on a fixed-price or time-and-materials basis. Go-to-market is sales-led and referral-driven — no self-serve or product-led motion — with a website contact form promising a 24-hour response, supported by organic presence on LinkedIn, Instagram, Behance, and Dribbble. Revenue is generated across five streams: digital strategy/consulting, custom web and SaaS development, e-commerce platform builds, mobile application development, and business applications including managed maintenance. Fullstack has not raised external funding, has no parent company or holding-group structure, and is privately held by its two founding partners.

Name

Fullstack

Legal name

Fullstack

Website

https://fstck.co

Company type

Private

Founded year

2014

Operating status

Operating

Headcount range

1–10 employees

Short description

Fullstack is an independent, full-service digital agency in Paris that designs and develops custom websites, e-commerce platforms, mobile applications, and business software for clients ranging from startups to CAC 40 enterprises. It also operates Fullstack Studio, an AI-focused sub-brand.

Ownership category

akta.pro rank

Product category

Digital Agency Services

NAICS

Custom Computer Programming Services (541511)

SIC

Services-Computer Programming, Data Processing, Etc. (7370)

akta.pro primary industry

Integration, API & Middleware Consulting (BPAHAEAJ)

Keywords

• Custom web development
• Ux ui design agency
• Ecommerce platform development
• Mobile app development
• Digital strategy consulting

Headquarters

HQ city

Paris

HQ country

France

HQ region

Europe

Offices2 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Technology or R&D, Marketing or Sales, Infrastructure

Revenue model

1. Professional Services - Digital Consulting & Strategy: Fullstack charges for strategic digital consulting, webmarketing strategy, SEO/SEM services, and brand strategy engagements. These are typically project-based or retainer arrangements.
2. Custom Web & Application Development: Fees for design and development of custom websites, corporate sites, SaaS platforms, and web applications. Pricing is bespoke per project scope, typically quoted as fixed-price engagements or time-and-materials.
3. E-commerce Platform Development: Development of e-commerce solutions on platforms including Magento, Prestashop, Shopify, and WooCommerce, with ERP/CRM integration services. These are custom development engagements.
4. Mobile Application Development: Native and cross-platform mobile app development (iOS, Android, React Native, PWA) including post-launch support and maintenance.
5. Business Application (Application Métier) Development: Custom internal tools, intranets, extranets, and B2E applications developed for specific enterprise workflows. Includes ongoing maintenance (TMA) contracts.

Go-to-market motion1 record

Distribution channels3 records

Marketing channels7 records

Core offering

Fullstack is a Paris-based independent digital agency that designs, builds, and operates bespoke digital products for client organizations — including corporate websites, e-commerce platforms, SaaS applications, mobile apps, and internal business applications. Engagements span strategy, UX/UI design, custom development, launch, and ongoing maintenance (TMA), delivered by a small multidisciplinary team using a techno-agnostic, agile methodology. The agency also operates the Fullstack Studio sub-brand, which ships AI-powered consumer mobile applications such as DoodleVerse and Acuity.

Product overview

Fullstack is a full-service digital agency offering a comprehensive portfolio of digital products and services. The core offering spans web design and UI/UX, custom web development (corporate sites, e-commerce, SaaS applications), mobile application development (iOS, Android, React Native, PWA), and business application development (intranets, extranets, custom software). Supporting services include digital strategy (SEO/SEA, content, social media), branding (logo, visual identity, brand books), and hosting with infrastructure management. The agency also operates a sub-brand called Fullstack Studio focused on AI-powered mobile applications, including DoodleVerse (generative AI for children's drawings) and Acuity (AI-powered educational app). The portfolio includes over 300 projects since 2007, serving clients from startups to CAC 40 companies across diverse sectors including fashion, healthcare, aviation, and entertainment.

Differentiator

Problem solved

Functional benefit

Products and services

• Web Design & UI/UX UI/UX design service for client organizations, including wireframes, interactive prototypes, personas, accessibility implementation, and Figma-based design systems using atomic design principles.
• Web Development (Custom Websites & SaaS Platforms) Custom website development service for businesses, including corporate sites, WordPress CMS implementations, SaaS applications, and bespoke web platforms built with PHP/Laravel, Symfony, NodeJS, React, and Vue.js.
• E-commerce Development E-commerce platform development and integration service on Magento 1/2, Prestashop, Shopify, and WooCommerce, including custom module development and ERP/CRM connector integration.
• Mobile Application Development Native and cross-platform mobile app development for iOS and Android using React Native, Swift, Java, Cordova, NativeScript, and Progressive Web Apps (PWA), including post-launch support and maintenance.
• Business Application Development (Applications Métier) Custom business software development service, including intranets, extranets, ERP/CRM interfaces, workflow automation, and B2E internal tools, often paired with ongoing TMA maintenance contracts.
• Digital Strategy & Webmarketing Digital marketing strategy service including SEO/SEA, content strategy, social media strategy, inbound marketing, lead generation, and marketing automation for client organizations.
• Branding

Quantifiable outcome

• 300+ projects completed since 2007
• +3 more outcomes

Named customers30 records

Segments5 records

Ideal customer profiles2 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration7 records

AI capability3 records

Feature3 records

Scale indicators3 records

Recent moves6 records

Expansion highlights4 records

Direct peers

• Theodo: Paris-based full-stack web and mobile development agency with comparable multidisciplinary team model, serving similar mid-market and enterprise French clients. Direct competitor for talent and engagements like ERP integration, SaaS platforms, and mobile apps.
• Insign: French digital agency offering web design, e-commerce, and mobile app development for similar SMB and mid-market French clients — close competitor in the boutique agency segment.
• Valtech: Global digital agency with French heritage offering web development, e-commerce (Magento, Shopify), and digital strategy — direct overlap with Fullstack's service portfolio across enterprise customers in retail and fashion.
• SQLI: French digital services group specializing in e-commerce (Magento), web platforms, and customer experience — competes for the same enterprise digital transformation RFPs as Fullstack.
• Klee Group: French digital agency and integrator with strong enterprise footprint in retail, luxury, and industry — overlaps with Fullstack's e-commerce and business application offerings for comparable mid-market accounts.

Regional players

• Bocasay: French-headquartered nearshore/offshore web and mobile development agency competing for similar custom development projects, typically with a more distributed cost model than Fullstack's Paris-based team.

Emerging players

• Wecandoo: Paris-based digital product studio with comparable focus on full-stack web and mobile development for startups and mid-market, occasionally competing for the same engineering talent and SMB engagements.

Broad incumbents

• Devoteam: Large French-origin IT and digital consulting firm with cloud, web, and platform engineering practices that compete for enterprise custom development and integration work.
• Viseo: International technology consultancy with strong French roots offering custom development, integration, and digital experience services — broader incumbent competing for enterprise digital transformation budgets.
• Octo Technology: Major French digital and technology consultancy (now part of Accenture) covering software craftsmanship, cloud, and design. Larger-scale competitor that targets the same CAC 40 clients as Fullstack.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat3 records

Key risks7 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/fullstack-digital-agency
• Instagraminstagram.com/heyfullstack

Revenue estimate

Valuation estimate

Number of profiles

Profiles4 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Fullstack