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

Independent digital agency specialized in B2B and B2C. For more than 10 years, we have been working on the digital transformation projects 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 specialized in B2B and B2C. For more than 10 years, we have been working on the digital transformation projects of our clients.

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

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

Independent digital agency specialized in B2B and B2C. For more than 10 years, we have been working on the digital transformation projects 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 specialized in B2B and B2C. For more than 10 years, we have been working on the digital transformation projects 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 specialized in B2B and B2C. For more than 10 years, we have been working on the digital transformation projects 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 be by your side and support you in the success of the digital transformation of your business, providing expertise, talent and a « design thinking » approach.

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 your needs may be, our agile approach allows us to build a pragmatic and efficient response, that fits both your business needs and the customer’s expectations.

  • 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 digital.

We believe that Open Source is our best ally. Indeed, why should one reinvent what already works? How could we think that we can do things better alone instead of contributing to the global Open Source community? 

We are always looking for the latest Open Source technologies so our team of front-end and back-end developers make your projects happen.

Image expert

A team ready to design positive experiences

Our team of UX experts uses research and innovation tools to put the user at the center of our process.

We are always looking for the best ways of transforming your products or services, taking into account the usage context, the user’s needs, wants and limitations, in order to create positive and feasible experiences.

Our clients are our partners

Success stories that inspire

« With a creative, pragmatic proactive team, Ylly has been a real partner in the creation and development 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
inspiration

Castelis business group

Since 2020 we are proud of being part of Castelis.

250
collaborators
18 M€
in revenues
250
years of experience
6
experienced companies