About us

YouTransactor designs innovative mobile payment solutions to help merchants propose a great consumer experience.

YouTransactor was founded in 2009 by pioneers of the payment industry, who believed that all Merchants should be able to accept card payment, no matter if they sell in mobility or in brick and mortar shops.

Leveraging on our strong knowledge of payment acceptance, we have been guiding our clients in their payment experience, designing the most appropriate payment solutions, from POS terminal to payment application on a smartphone.

We want to see the world as one, but still consider each payment use case as unique, which is why our clients come from different verticals such as Retail, Transportation, Delivery or Government.

Our way of making it happen, is to enable Merchants imagine the best purchasing experience for their consumers, letting us take care of user interfaces, payment transactions, security certifications and system integration.

Global Presence - YouTransactor

800 customers across 23 countries

Belgium • Malta • Italy • United Kingdom • Czech Republic • Sweden • Switzerland • France • Norway

USA • Canada • Brazil • Mexico  •  Costa Rica

Middle East – Africa
South Africa • La Réunion • Senegal • Turkey • Qatar •Kenya

Malaysia • Indonesia • India • Myanmar

Leadership Team

Passionate entrepreneurs from leading FinTechs in merchant services and point-of-sale solutions.

Serge Ragozin - CEO & CHAIRMAN - YouTransactor

Serge Ragozin


Former Managing Director in charge of transverse services in the hotel field for the Accor Group. In 2005, Serge Ragozin was appointed CEO of Accor Services (now Edenred), the worldwide leader of prepaid B2B services, and held this position for five years.

Emilie Casteran

Chief executive officer

With  12+ years of experience in Financial Services, Emilie has pursued an international career (Singapore, USA, France) serving key stakeholders in payment worldwide. As a part of Thales, formerly Gemalto, Emilie was heading the Digital Commerce Business line, after leading global innovation and business development activities in Americas.

Philippe Serié - CFO & Co-founder- YouTransactor

Philippe Sérié

CFO & Co-founder

Co founder of YouTransactor, former CFO in payment industry (Ingenico, Verifone, clear2pay) since 2003, Philippe has strong skills on fundraising, M&A, fast growing, restructuring and international team management. Philippe is also business angel in technologies and IOT companies.

Grégory Mardinian - CTO & Co-founder - YouTransactor

Grégory Mardinian

CTO & Co-founder

Co-Founder of YouTransactor, former Technical Director at Ingenico, Gregory has dedicated his career to smart card solutions and payment systems in industry leader. He designed one of the most sold mPOS terminal worldwide leveraging on his deep industry expertise.


One team, one dream

We are entrepreneurs developing cutting-edge technologies to change the payment experience of merchants and retailers. We work as one passionate multi-cultural team, where each voice and personality makes a difference. Creativity, expertise and innovation drive our fast-pace growth all over the world in a challenging industry.

We are always looking for commercial and technical talents to join our adventure.

Join YouTransactor team and help us make an impact.

BlackFin Capital Partners is a leading private equity firm focusing on Financial services across continental Europe.


We partner with word’s leading players in retail, transportation and mobility, to create the most engaging payment experience for consumers. Our know-how, agility and innovation on hardware devices and transactional services are the foundation of these global partnerships. Together, we focus on disrupting mass markets positively, building strong relationships across payment and FinTech ecosystems.

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