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Fenxi

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Maisons-Alfort, France
Web, data & AI agency in Paris. The business goal first, then the tech.
Who we are Fenxi is a Paris-based agency founded by engineer-entrepreneurs from CentraleSupélec and incubated at Station F. We design and build websites, e-commerce stores, mobile and SaaS apps, and data & AI systems, from UX/UI design to production. Services & expertise Studio: marketing sites, e-commerce (Shopify), mobile and SaaS apps, UX/UI design. Data & AI: data engineering, dashboards, automation (n8n, Make) and AI projects built on your own data. Approach The business goal first, then the tech. Design, engineering and data sit in one team, so what we design is what we ship. Two fixed-price ways to start: the UX/UI Diagnostic (3–5 days, €1,300 excl. VAT) and Compass, a two-week data audit (€3,500 excl. VAT). Why Fenxi Measurable results for clients like KFC (+5% average basket with AI kiosk recommendations), Legalstart (€10k/month saved through data automation) and Louvain Medical (+350 subscriptions in 3 months after the platform rebuild).
4 people in their team
Speaks French, English
6 projects in their portfolio
Sortlist member since 2025
Founded in 2019
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Services

9 services offered by Fenxi

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  • Description
    We design Flutter apps that fade into daily life, focusing on human-centered interactions, frictionless experiences and iterative refinement to deliver useful, simple mobile tools.
    Works in Software Development (5)
    Clients in Software Development (4)
    Louvain MedicalHospitals & Healthcare
    Ping Pang ParisSports
    PodplaySports
    PCB ElectronicsIndustrial Goods & Services
    Learn more about Software Development
  • Description
    We build Mendix web applications that reduce friction and integrate into users' routines, translating complexity into reliable, maintainable tools through iterative user-led development.
    Work in Web Application (1)
    Client in Web Application (1)
    Louvain MedicalHospitals & Healthcare
    Learn more about Web Application
  • Description

    No description provided for this service.

    Skills in E-commerce (2)
    Ecommerce Web DevelopmentEcommerce Website
    Work in E-commerce (1)
    Client in E-commerce (1)
    Ping Pang ParisSports
    Learn more about E-commerce
  • Description

    No description provided for this service.

    Works in Artificial Intelligence (3)
    Clients in Artificial Intelligence (3)
    PodplaySports
    LegalstartLegal Services
    KFCFood
    Learn more about Artificial Intelligence
  • Description

    No description provided for this service.

    Works in Data Consulting (3)
    Clients in Data Consulting (3)
    PodplaySports
    LegalstartLegal Services
    KFCFood
    Learn more about Data Consulting
  • Description

    No description provided for this service.

    Works in Web analytics/Big data (2)
    Clients in Web analytics/Big data (2)
    PodplaySports
    LegalstartLegal Services
    Learn more about Web analytics/Big data
  • Description

    No description provided for this service.

    Works in Ergonomy (UX/UI) (3)
    Clients in Ergonomy (UX/UI) (3)
    Louvain MedicalHospitals & Healthcare
    Ping Pang ParisSports
    PCB ElectronicsIndustrial Goods & Services
    Learn more about Ergonomy (UX/UI)
  • Description

    No description provided for this service.

    Work in Branding & Positioning (1)
    Client in Branding & Positioning (1)
    Ping Pang ParisSports
    Learn more about Branding & Positioning
  • Description

    No description provided for this service.

    Work in SEO (1)
    Client in SEO (1)
    Louvain MedicalHospitals & Healthcare
    Learn more about SEO
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Team

4 members in Fenxi's team

StoryWe started Fenxi in 2019 in France out of a simple frustration: technology shouldn’t demand the spotlight — people should. From day one we set out to build tools that blend into daily life, quietly enabling work and creativity. Our team focuses on removing friction, translating technical complexity into intuitive experiences, and iterating with real users to refine what matters. We take pride in crafting powerful solutions that feel familiar and natural, so projects move forward without unnecessary noise. Every product is judged by how easily it fits into routines and how many small, meaningful wins it delivers to the people who use it.
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Contact

Contact details of Fenxi

Details

  • Headquarter24 Avenue du Professeur Cadiot, 94700 Maisons-Alfort, France