
Sacha Nudel
Co-founder and Managing Director
Sacha leads business development and relations with organisers, from the first demo to the follow-up of their events.
Solutions
YZY Pay YZY Ticket YZY Event App YZY Access YZY Studio YZY Stock soonSectors
Festivals and events Sports clubs Venues and conferences Museums and exhibitionsServices
On-site network Hardware SupportResources
Frequently asked questions Guide: cashless and Belgian law Resources and newsYZYflow
Plans and pricing About usContact us
+32 10 25 00 44 [email protected] Book a call
YZYflow is a Belgian company based in Wavre. We equip event organisers with ticketing, cashless payment, access control and statistics, backed by more than ten years of experience in the field.
Making life simpler for event organisers with an integrated suite (ticketing, cashless, access, statistics and hardware) and personal support from start to finish, from set-up to festival night.
To become the go-to partner for event ticketing and cashless for organisers in Belgium and northern France, combining technology, on-the-ground presence and personal service.
Two young founders, with more than ten years of field experience behind them: by acquiring Emisys, Sacha Nudel and Sébastien Levêque took over its expertise to build YZYflow.
Their youth shows in the tools: simple, mobile, designed for the way people work today. Their experience shows on the ground: they know the festivals, venues and clubs they equip, and stay reachable when the event is in full swing.

Co-founder and Managing Director
Sacha leads business development and relations with organisers, from the first demo to the follow-up of their events.

Co-founder and Technical Director
Sébastien designs the platform architecture and the product roadmap, and oversees their quality: tools that hold up in the field.
More than ten years of cashless and ticketing in the field.
10 years
For more than ten years, Emisys equips festivals, venues, clubs and cultural venues with cashless and ticketing.
2026
With Sacha Nudel and Sébastien Levêque, YZYflow takes over Emisys’s field expertise, with a new platform and a new brand.
Today
A bill on cashless tabled in the Chamber cites YZYflow as an example of good practice.
Making event organisation accessible to everyone, without technical or financial barriers, so that everyone can experience and share unique moments.
The sector moves fast. So do our solutions, designed to be simple to use, effective in the field and adapted to every situation.
Building on 10 years of experience to deliver flawless quality and ensure memorable, successful events.
Real-time statistics, clear dashboards and useful data after the event.
Project manager, support, development: a Wavre-based team that comes to your events and stays reachable throughout.

Let’s meet
An initial 20-minute call, then a meeting by video call or on site, to talk about your event.
A demo, a return-on-investment simulation and a quote tailored to your event.
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