Effet B

What Effet B does

Effet B is a privately held French web development and digital services agency headquartered in Villeurbanne (Lyon metropolitan area), founded in 2009/2010 by Bastien Baudry and Loïc Favory as a SAS with €30,000 share capital. The company operates a professional services model complemented by a portfolio of proprietary, productized sub-brands, anchored by its in-house Symfony-based CMS (currently version 5). Its service offering spans custom web development, intranet/extranet portals, e-commerce platforms, and native mobile applications, delivered to enterprise and SMB clients across more than a dozen verticals including automotive, real estate, education, insurance, healthcare, finance, media, and retail. Notable long-term enterprise relationships include Aixam Mega (10+ years, European leader in license-free vehicles with multilingual, multi-country dealer portals) and FormaSup ARL (10+ years, apprenticeship training organization).

The company's productized sub-brands form a platform-plus-modules architecture: STUDEA (digital apprenticeship tracking, deployed at 80+ training organizations), OFAlink (apprenticeship contract ERP supporting Qualiopi certification), GEOSTREET (geolocation-based field marketing tracking for NRJ Group), Play'N Collect (gamified customer data collection), Retaily (mystery shopping SaaS), Kado Enjoy (B2B/B2C gift card management), and Hello Tribu (parenting PWA). These are built on a conventional LAMP-adjacent stack (PHP/Symfony, Vue.js, Angular, Ionic, MySQL, MongoDB, ElasticSearch) with integrations to SAP, Sage, Divalto, and major French ERP/DMS systems.

Effet B runs a sales-led go-to-market with direct enterprise engagement, project-based pricing on multi-year contracts, and maintenance/evolution revenue. The company operates an active R&D division (established 2017) that partners with INSA Lyon, ELLIADD (Université Bourgogne Franche-Comté), and LIRIS (CNRS) to supervise CIFRE doctoral theses in semantic recommendation systems, knowledge graphs, and LLM-enhanced knowledge tracing, with peer-reviewed publications at ICAI, UMAP, and CORIA-LIRIS. The firm is bootstrapped with no disclosed external funding, acquisitions, or material leadership changes, and has ~22 team members listed including developers, integrators, project managers, R&D engineers, and apprentices.

Name

Effet B

Legal name

Effet B

Website

https://effetb.com

Company type

Private

Founded year

2010

Operating status

Operating

Headcount range

1–10 employees

Short description

Effet B is a French web development agency (Villeurbanne, founded 2009) that builds custom websites, e-commerce platforms, intranets, and mobile apps for enterprise clients, anchored by a proprietary Symfony-based CMS and productized sub-brands like STUDEA (apprenticeship tracking) and Retaily (mystery shopping SaaS).

Ownership category

akta.pro rank

Headquarters

HQ city

Villeurbanne

HQ country

France

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Web Development Projects: Custom web application development services delivered to clients across various industries. Projects include website creation, e-commerce platforms, and mobile applications with pricing based on project scope and complexity.

Pricing tiers

Go-to-market motion1 record

Distribution channels1 record

Marketing channels3 records

Core offering

Effet B is a web services and consulting agency that designs, develops, and maintains custom online multimedia applications for businesses and institutions. Its core offerings include bespoke web development, mobile applications (native iOS/Android and PWA), and intranet/extranet solutions, all built on a proprietary Symfony-based CMS that allows clients to manage content autonomously. The firm also commercializes a portfolio of standalone proprietary platforms—STUDEA for apprenticeship tracking, OFAlink for training contract administration, GEOSTREET for geolocated street marketing, Retaily for mystery shopping, and Kado Enjoy for gift card management.

Product overview

Effet B is a web services and consulting firm specializing in online multimedia application development. The company operates a platform-plus-modules architecture anchored by its proprietary CMS Effet B, a Symfony-based content management system (currently version 5) that serves as the foundation for most client projects. The product portfolio extends through specialized solutions including OFAlink (apprenticeship contract management ERP), STUDEA (digital apprenticeship companion), GEOSTREET (field mission management with geolocation), and Retaily (mystery shopping SaaS). Additional offerings encompass e-commerce platforms, Kado Enjoy (gift card management), Play'N collect (gamified data collection), and Hello Tribu (parenting community PWA). The company maintains an active R&D division focused on semantic recommendation systems, AI/ML technologies including LLMs, BERT, and knowledge graphs, primarily applied to e-learning personalization and e-marketing. Client sector coverage spans e-commerce, real estate, insurance, automotive, apprenticeship/education, and retail.

Differentiator

Problem solved

Functional benefit

Brands

• STUDEA: Digital apprenticeship booklet platform for tracking and evaluating apprentices, deployed to over 80 training organizations across France.
• Retaily
• OFAlink

Products and services

• CMS Effet B Proprietary content management system built on the Symfony framework, enabling clients to autonomously create and update website content with high flexibility. Version 5 is currently deployed for new projects and serves as the foundation for most client projects.
• STUDEA Digital apprenticeship tracking platform facilitating Qualiopi label acquisition through collaborative tracking of apprentices, tutors, and training establishments. Features online questionnaires, document sharing, internal messaging, and cross-device accessibility. Deployed across 80+ training organizations including CFA, universities, GRETA, and business schools.
• OFAlink Comprehensive apprenticeship contract management ERP covering administrative functions from pre-registration through contract signing and OPCO registration. Includes modules for contract tracking, statistics (success/rupture/insertion rates), partner management, and document resources. Supports Qualiopi certification requirements.
• GEOSTREET Responsive web application for street marketing mission management with geolocation technology (300-meter verification radius), back-office mission creation, and real-time field team tracking and reporting. Used by advertisers to verify distributor presence at assigned locations.
• Retaily SaaS mystery shopping and sales network evaluation platform using semantic web technologies. Enables continuous survey production, automated training, and real-time analytics for evaluating multi-channel customer journeys across retail networks.
• Kado Enjoy Gift card and voucher management platform for CSE (employee representative committees) and enterprises featuring partner portal, API communication, reporting dashboard, and back-office operations. Supports both B2B and B2C access.
• Play'N Collect Customer data collection platform through interactive games (scratch cards, surveys, predictions) with automatic report generation, RGPD-compliant data handling, and brand engagement optimization for advertisers.
• Hello Tribu Mobile and PWA platform for young parents offering personalized news feeds, partner brand offers, loyalty programs, community discussion spaces, and interactive content.
• Custom E-commerce Platform Development Custom e-commerce solution with product catalog management, online sales, inventory and invoicing integration, 3D product visualization, and personalization features. Built on Effet B's CMS with integrations to third-party systems such as Divalto and SAP.
• Custom Web Development Services End-to-end custom web development services including responsive websites, web applications, mobile-first design, and tailored digital solutions for enterprises across multiple verticals.
• Intranet and Extranet Development Services Custom intranet and extranet portal development for enterprise clients, including secure dealer networks, investor portals, and internal communication platforms, built on Effet B's proprietary CMS with hosting on dedicated servers.
• Mobile Application Development Services Native iOS and Android mobile application development and innovative web applications (PWAs), with maintainability and evolutivity assured. Uses Ionic, Cordova, and cross-platform frameworks.

Named customers15 records

Segments3 records

Ideal customer profiles3 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration7 records

AI capability8 records

Feature6 records

Partnerships

Three partnerships are on record, tiered core and minor.

• INSA LyoncoreStrategic or Co-development Partner · 1 January 2017Academic research partnership with INSA Lyon engineering school for R&D collaboration and knowledge exchange in digital technologies.
• ELLIADD (Université Bourgogne Franche-Comté)coreStrategic or Co-development Partner · 1 January 2017Laboratory partnership for CIFRE PhD thesis research. Supported Baba Mbaye's doctoral research on semantic recommendation systems for e-marketing, supervised by Pr. Ioan Roxin and M. Federico Tajariol.
• LIRIS (CNRS)minorStrategic or Co-development Partner · 1 January 2017Research partnership with LIRIS computer science laboratory for conference collaboration (CORIA-LIRIS).

Scale indicators6 records

Recent moves6 records

Expansion highlights5 records

Direct peers

• Yparéo: French apprenticeship and training management SaaS provider covering Qualiopi-relevant workflows — directly competitive with Effet B's STUDEA and OFAlink product lines.
• Apogea: French software vendor specializing in CFA (apprentice training center) management software — overlaps directly with Effet B's OFAlink/STUDEA apprenticeship offerings.
• Elao: Lyon-based Symfony web agency offering custom web application development, intranet/extranet, and ongoing support — same city, same stack (Symfony/Vue.js), highly comparable.
• The Coding Machine: French PHP/Symfony-focused web agency delivering custom applications and platform development for enterprise — same tech stack and similar services profile.
• Synolia: French digital agency specializing in Symfony, e-commerce (Akeneo, Shopify, Salesforce Commerce Cloud), and bespoke web platforms for enterprise clients — directly comparable in service mix and geographic footprint.
• Nouvelles Donnes: French web agency delivering custom web platforms, mobile applications, and digital strategy — comparable in size and service offering to Effet B.
• Webnet: French digital agency offering web development, mobile apps, and intranet/extranet solutions for enterprise clients — directly comparable scope and customer profile.

Broad incumbents

• Smile (Open Source): Larger European open-source digital agency and integrator with broad Symfony, Drupal, and e-commerce practices — comparable services but at significantly greater scale and broader portfolio.
• Kaliop: Larger French digital agency specialized in open-source CMS, e-commerce, and digital transformation — overlaps with Effet B's CMS and e-commerce service lines at greater scale.

Emerging players

• Keyane: French apprenticeship contract management software aimed at CFAs and OPCOs — competes in the same niche as OFAlink with potentially more focused GTM.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat4 records

Key risks6 records

Key highlights6 records

Customer concentration

• Xx.com/EffetB
• Facebookfacebook.com/EffetB

Revenue estimate

Valuation estimate

Number of profiles

Profiles5 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 Effet B