About Sellermania
We help companies realize their potential on marketplaces

why sellermania?
Combining expertise and innovation, Sellermania offers its clients a platform to develop their activity on marketplaces.
Our site is both a flow manager and a marketplace optimization software that allows you to develop your merchant activity on the marketplaces.
Our platform allows merchants to publish their products on different marketplaces such as Amazon, Cdiscount, Fnac, Rakuten, Darty and many others, and centralize all the orders they can receive from these marketplaces in a single interface.
Features such as stock synchronization between marketplaces, dynamic WeReprice pricing and product flow optimization have won several industry awards, and make a real difference to salespeople’s day-to-day sales .
Our software offer, without commissions, transparent and by subscription, allows to centralize the activity, to optimize the sales on the marketplaces.
It is aimed both at merchants looking for a successful flow management solution, and at merchants who do not have a flow and wishing to develop their turnover or save time.
Pioneers and leaders in France, alumni of Amazon, we are passionate about technology & innovation, our mission is to provide sellers with the best technological platform for managing marketplaces.
OUR HISTORY
Created in 2005 by Valérie and Stéphane, ex-managers of Amazon France, the initial vision is to offer merchants a software allowing to accelerate the turnover on the marketplaces.
From the start, we offered a platform dedicated to growth on Amazon, in particular thanks to the first dynamic pricing technology on the market.
Other marketplaces were subsequently added: PriceMinister, now Rakuten, eBay, Fnac, Rueducommerce, Cdiscount, and the list has never stopped growing with hundreds of channels available to date.
Innovation is part of Sellermania’s DNA, with the aim of offering the best technology and service among marketplaces management platforms:
Dynamic pricing compared with the competition in 2007, real-time stock synchronization in 2008, presence in the UK and Germany in 2009, catalog creation in 2010, the Mapper in 2013, price comparators in 2014, Market First repricing in 2017, chainage in 2018.
By injecting intelligence and consulting into the software,
Sellermania became the leading marketplace integrator in 2016.
In 2020, launch of V3, third generation of the software, including the multi-marketplaces product sheet, and extended international capacities.
In 2022, launch of repricing, Market First on 46 marketplaces, becoming the only feed manager with a native integrated repricer on so many marketplaces.

OUR VALUES
Innovation, pleasure, passion and commitment. We remain a human-sized and independent company, despite our strong and continuous growth. Our success is based on our solution, our values and above all on our teams, based in Paris, in the heart of the Silicon Sentier and in Nantes.
The team

Stephane Jauffret
CEO & Co-founder
Cornell University (MBA), Stéphane was General Manager Books, Video Games Software and Amazon Marketplace in France in 2000. In 2004, he was Marketing Director of ChâteauOnline, then he co-founded Sellermania with Valérie in 2005.

Valerie Legrand
CFO & Co-founder
With a degree in engineering from IAG and Cornell University (MBA), Valerie is a financial analyst at Nordstrom, then Amazon analyst and product manager in 2000. She co-founded Sellermania with Stéphane in 2005

Marouane Elgueddah
Chief Operating Officer
Sylvain holds a Master’s degree in Marketing Strategy and joined Sellermania in 2012 as Customer Success. Sylvain is responsible for the management of the product, guarantor of its perpetual evolution.

Sylvain Mançois
Product Owner
Sylvain holds a Master’s degree in Marketing Strategy and joined Sellermania in 2012 as Customer Success. Sylvain is responsible for the management of the product, guarantor of its perpetual evolution.

Krishna Mohanasundaram
Sellermania Services Director
After 10 years in development in global groups, Krishna joined Sellermania in 2013, where he supervises the quality teams.

Céline Bignon
Customer Operations Manager
With a Research Master’s degree in Economics and a former PhD in International Finance, Céline joined the Integration team in 2018.

Chrystelle Rasoamahenina
Marketplace Consultant
A graduate of business school (MIM) and the University of Sherbrooke (M. Adm), in 2017 she joined Sellermania’s Integration team to provide support for new software users.

Pierre-Luc Giulj
Customer Success Excellency
A business school graduate, Pierre-Luc joined Sellermania’s Support team in 2018. Today, he works to reinforce Sellermania’s good e-reputation.
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