Alice
Project manager, ready to support you in the continuous improvement of your projects

Independent digital agency specializing in B2B and B2B2C, we have been working for more than 10 years on the digital transformation of our clients.

We create user-centric digital experiences with open source technologies.

Photo Alice
Michele
Ergonomist expert, ready to place the user at the heart of the design process

Independent digital agency specializing in B2B and B2B2C, we have been working for more than 10 years on the digital transformation of our clients.

We create user-centric digital experiences with open source technologies.

Photo Michele
Morgan
Interface designer, ready to design graphical interfaces that looks like you

Independent digital agency specializing in B2B and B2B2C, we have been working for more than 10 years on the digital transformation of our clients.

We create user-centric digital experiences with open source technologies.

Photo Morgan
Samuel
Technical Director, ready to bring your projects to life with the best Open Source technologies

Independent digital agency specializing in B2B and B2B2C, we have been working for more than 10 years on the digital transformation of our clients.

We create user-centric digital experiences with open source technologies.

Photo Samuel
Fabio
Performance manager, ready to guarantee the sustainable performance of your digital device

Independent digital agency specializing in B2B and B2B2C, we have been working for more than 10 years on the digital transformation of our clients.

We create user-centric digital experiences with open source technologies.

Photo Fabio

By your side to make your digital transformation a success

We are a digital agency committed to the success of your projects.

Our goal is to create powerful and efficient user experiences, and secure, reliable and agile technological platforms.

Digital agency in Paris and Lille

We are committed to your side, in the success of your digital transformation, with our expertise, our talents and our approach oriented 'design thinking'.

Photo antargaz

Antargaz

Manage your energy through 5 customer areas
Photo MSD Poussin

Passeport poussin

Helping you make decisions and respecting procedures
Photo ALK

Ma Vie d'Allergik

Support you in monitoring your allergy
Photo garance

Garance

All brand ambassadors
Photo takeda

Takeda

Know your treatment path

Experiences we designed

Whatever the issue, our agile approach allows us to build pragmatic and efficient responses, which reconcile your business needs and the expectations of your customers.

  • Antargaz
  • Passeport poussin
  • Ma Vie d'Allergik
  • Garance
  • Takeda

A team of experts in Open Source technologies

We are a team of thinkers and innovators, experts in open source technologies, committed and determined to reinvent the way we think about the digital field.

We believe that Open Source is our best ally. Indeed, why reinventing what is already working? How can we do better than the millions of people who work together? And why not contribute to it?

Always on the lookout for the latest Open Source technologies, our front and back-end developers bring your projects to life.

Image expert

A team ready to design positive experiences

Our team of UX experts puts all its research and innovation efforts to put the user at the center of our answers.

We are always on the lookout for the best way to transform your product or service, taking into account the context of use, users' needs, wants and limitations, in order to create positive experiences.

Our clients are our partners

Success stories that inspire

« With a creative, pragmatic team and a force for proposals, Ylly has been a true partner in the creation of our mobile application. »

Charles Besnard
Marketing Director - Garance

Success stories that inspire

« Their expertise as well as their listening skills make YLLY an agency with which collaboration rhymes above all with pleasure. »

Vincent Bailleul
Digital Manager - MSD Animal Health

Success stories that inspire

« A team that listens to our concerns, they are agile and reactive. Ylly has always been able to support me while taking into account the objectives set and the constraints imposed. »

Mouna Mael Ainin
Digital Project Manager - Alk France

Castelis business group

Depuis 2020 nous sommes fiers d'en faire partie

250
collaborators
18 M€
turnover
250
years of expertise
250
expert companies