What Sellermania does

Sellermania is a Paris-based SaaS company, founded in 2005 by ex-Amazon France executives Stéphane Jauffret (CEO) and Valérie Legrand (CFO), that provides merchants and brands with an all-in-one marketplace management platform. The platform unifies four core functions: feed management (including a patented Smart Map mapper with 50+ transformation functions), real-time stock synchronization across connected channels, centralized order management, and dynamic repricing (WeReprice, natively integrated across 46+ marketplaces). It supports over 100 marketplace channels simultaneously, including Amazon, Cdiscount, Fnac, Rakuten, Back Market, eBay, and Mirakl-powered marketplaces, and integrates with major e-commerce backends (PrestaShop, Magento, Shopify) via free modules as well as with fulfillment providers (Amazon FBA, C-Logistique/Octopia).

The company monetizes through a commission-free SaaS subscription model, with plans starting at €149/month and tiers scaling by feature set and product/channel volume. GTM is hybrid: a sales-led motion with a "Request a demo" CTA targets enterprise and mid-market accounts, while free CMS modules for PrestaShop, Magento, and Shopify serve as self-serve acquisition for SMB and individual sellers. Sellermania maintains a distinct go-to-market angle for the refurbished-goods vertical (with specialized grading, IMEI, and traceability features) and has partnerships with refurb-focused marketplaces including Back Market and Refurbed. AI capabilities are layered on through the WeTransform natural-language feed transformation tool (integrated April 2024).

Sellermania is privately held and bootstrapped, with no disclosed external funding, no parent company, and no subsidiaries. It employs 11–50 people across offices in Paris (Silicon Sentier headquarters) and Nantes. Operational scale cited by the company includes over 100 million products managed per day and approximately 300 million euros in refurbished goods GMV processed annually through the platform. Customer satisfaction signals include 9/10 recommendation rate, 96% satisfaction, and 87% reporting increased sales and time savings.

Name

Sellermania

Legal name

SELLERMANIA

Website

https://sellermania.com

Company type

Private

Founded year

2005

Operating status

Operating

Headcount range

11–50 employees

Short description

Paris-based SaaS platform founded in 2005 that helps merchants and brands manage multi-marketplace selling through feed management, real-time stock synchronization, dynamic repricing, and centralized order management across 100+ marketplace channels, with a specialization in the refurbished-goods vertical.

Ownership category

akta.pro rank

Headquarters

HQ city

Paris

HQ country

France

HQ region

Europe

Offices2 records

Markets served

GTM type

B2B

Offering type

Software

Cost components

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

Revenue model

1. SaaS Subscription: Software-as-a-service subscription model with plans starting at €149/month. Transparent, commission-free pricing — no commission on sales. Multiple plan tiers based on features and product/channel volume. Pricing varies by options chosen.

Pricing tiers

Go-to-market motion1 record

Distribution channels3 records

Marketing channels6 records

Core offering

Sellermania provides an all-in-one SaaS marketplace management platform that centralizes product feed management, dynamic repricing, real-time stock synchronization and order management across 100+ marketplace channels (Amazon, Cdiscount, Fnac, eBay, Rakuten, Back Market, Mirakl-based marketplaces, etc.). Its proprietary stack includes the patented Smart Map (Le Mappeur) feed mapper with 50+ transformation functions, the WeReprice dynamic repricing engine active on 46+ marketplaces, and the AI-powered WeTransform data import tool. The platform is sold on a commission-free subscription basis starting at €149/month and is complemented by free CMS modules for PrestaShop, Magento and Shopify.

Product overview

Sellermania is a unified all-in-one marketplace management platform providing feed management, order centralization, stock synchronization, and dynamic pricing capabilities. The core platform is supplemented by dedicated modules for major e-commerce platforms (PrestaShop, Magento, Shopify) and specialized solutions for refurbished product sellers. Key products include the Feed Manager with AI-powered natural language prompts, WeReprice for dynamic repricing across 46+ marketplaces, the patented Smart Map mapper, and integrated order/stock management. The platform serves as a complete command center for multi-marketplace sellers, supporting hundreds of channels including Amazon, Cdiscount, Fnac, Rakuten, Back Market, and Mirakl-based marketplaces.

Differentiator

Problem solved

Functional benefit

Brands

• WeReprice: Automated repricing solution for marketplaces, enabling dynamic price optimization against competition
• WeTransform
• Smart Map (Le Mappeur)

Products and services

• Sellermania Platform (Feed Manager / Gestionnaire de Flux) Unified SaaS marketplace management platform combining AI-powered feed transformation, patented Smart Map mapping, dynamic repricing, real-time stock synchronization, and centralized order handling across 100+ marketplace channels (Amazon, Cdiscount, Fnac, eBay, Rakuten, Back Market, ManoMano, La Redoute, Mirakl-based marketplaces). Sold on commission-free subscription plans starting at €149/month to merchants, e-tailers, brands, manufacturers, store networks and wholesalers.
• WeReprice (Market First Repricing) Dynamic marketplace repricing solution that automatically adjusts selling prices in real time based on competitor pricing, with intelligent strategies on margins, competitors and logistics. Natively active on 46+ marketplaces and positioned as the fastest repricing on the market, helping sellers win the Buy Box.
• Smart Map (Le Mappeur) Patented feed-mapping solution that transforms product feeds flexibly and universally for marketplace compatibility. Auto-configures flow-management parameters so merchants can start selling on marketplaces without manually handling feed synchronization, with 50+ transformation functions enabling deep feed adaptation.
• WeTransform AI-powered data import tool integrated into Sellermania that allows merchants to transform any product file into a publish-ready catalog on every platform in minutes using natural language prompts, addressing one of the costliest problems in marketplace selling.
• PrestaShop Marketplace Module Free PrestaShop module (versions 1.4 to 1.7) developed by Froggy Commerce in partnership with Sellermania's technical team. Provides marketplace order integration (every 15 minutes via cron), catalog export and stock synchronization directly from PrestaShop.
• Magento Marketplace Module Free Magento extension (compatible with Magento 1.9 and 2.0) providing continuous order integration, catalog export, stock decrement from Magento (with marketplace sales reducing Magento stock and vice versa), and item creation on marketplaces from Magento products.
• Shopify Marketplace Module Module for Shopify merchants that integrates marketplace selling capabilities (catalog export, stock sync, order processing) into their Shopify store.
• Refurbished Products Module Specialized features for managing refurbished product sales including order management, real-time inventory synchronization, and support for grading systems specific to refurbished marketplaces such as Back Market and Refurbed, with IMEI tracking and unit-level traceability.

Quantifiable outcome

• Turnover increased by 59% in a few weeks for a customer managing 4,600 product references with automated repricing replacing manual price monitoring.
• +3 more outcomes

Named customers11 records

Segments6 records

Ideal customer profiles4 records

Technology focussed Yes

API detail

Has API

Yes

API docs

API detail

Core technology

AI maturity

App detail

Integration6 records

AI capability4 records

Feature7 records

Partnerships

Four partnerships are on record, tiered core.

• WeTransformcoreTechnology or Integration · 18 April 2024Integration of WeTransform data import tool into Sellermania's platform. WeTransform solves the problem of managing marketplace accounts that require constantly juggling files in different formats, columns, and naming conventions. The tool automatically transforms any product file into a publish-ready catalog on every platform in minutes, addressing one of the costliest problems in marketplace selling. The partnership won the 2026 Cas d'Or du Digital award in the product catalog management category.
• MiraklcoreTechnology or IntegrationMirakl is the technology platform powering a significant portion of supported marketplaces including LDLC, La Poste, and numerous other Mirakl-based marketplaces. Sellermania has native, integrated support for Mirakl marketplace ecosystems, enabling sellers to manage their Mirakl-based marketplace operations through Sellermania's unified platform.
• Amazon FBA (Fulfillment by Amazon)coreStrategic or Co-development PartnerSellermania is natively compatible with Amazon FBA (Expédié par Amazon), enabling sellers to delegate logistics and customer service to Amazon while managing all marketplace operations from Sellermania's platform. Also supports C-Logistique (Cdiscount's fulfillment service) and Octopia Fullfilment.
• C-Logistique / Octopia FullfilmentcoreStrategic or Co-development PartnerSellermania supports automated shipment processing through Cdiscount's C-Logistique and Octopia Fullfilment services, enabling sellers to delegate fulfillment while managing marketplace operations centrally.

Scale indicators6 records

Recent moves8 records

Expansion highlights5 records

Direct peers

• GoDataFeed: GoDataFeed is a US-based product feed management platform that integrates with major marketplaces and shopping channels. Compares to Sellermania's feed transformation and syndication capabilities for multi-channel sellers.
• StoreFeeder: StoreFeeder is a Netherlands/UK multichannel management solution for marketplace sellers, offering feed management, order processing, and stock sync. Comparable in scope and target customer profile to Sellermania.
• Linnworks: Linnworks is a UK-based multichannel commerce platform offering inventory, order, and listing management across marketplaces, ecommerce, and ERP systems. It directly competes with Sellermania for SMB and mid-market sellers managing stock across multiple sales channels.
• ChannelEngine: ChannelEngine is a Netherlands-based marketplace integration platform offering feed management, order sync, and pricing tools across 100+ marketplaces. It is the closest direct competitor to Sellermania in Europe, with comparable breadth of marketplace coverage and a similar multi-channel seller focus.
• SellerCloud: SellerCloud is a US-based multichannel commerce platform offering inventory, order, and listing management for online sellers across marketplaces, with comparable functionality to Sellermania's stock sync and order management.
• Feedonomics (Advendio): Feedonomics is a feed management platform that optimizes product data feeds for marketplaces, advertising, and analytics, now part of Advendio/Bold Metrics. Directly comparable to Sellermania's feed management and transformation capabilities.
• Lengow: Lengow is a French SaaS for product feed management and marketplace/distribution, headquartered in Nantes (same French e-commerce ecosystem as Sellermania). Both target merchants seeking centralized feed, order, and pricing management across multiple channels in Europe.

Broad incumbents

• Mirakl: Mirakl operates the marketplace platform infrastructure that powers many of the marketplaces Sellermania integrates with (LDLC, La Poste, etc.). It is a broader incumbent that enables marketplace creation rather than seller-side management, but sits adjacent in the same value chain.
• ChannelAdvisor (CommerceHub): ChannelAdvisor, now part of CommerceHub, is a major US-headquartered marketplace and e-commerce channel management platform. It serves larger enterprise sellers with broader analytics and advertising capabilities than Sellermania but overlaps significantly on feed/order/price management.

Emerging players

• Webinterpret: Webinterpret is a translation and international marketplace listing service, integrated with Sellermania. It overlaps in enabling cross-border marketplace selling but specializes in localization rather than the full feed/order/repricing stack.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key highlights7 records

Customer concentration

• Xx.com/sellermania
• Facebookfacebook.com/sellermania
• LinkedInlinkedin.com/company/sellermania

Compliance3 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles8 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 Sellermania