Let's create your new web application together
When we talk about applications, we often think of mobile. But you should know that today, complex sites are also applications.
A web application, or web app, is just a website with which we will interact more than with a Showcase site.
It can be simple, or more complex, and be interconnected with various services to notify or transfer data. We mostly use React and Typescript.
Today, you can create any service to do just about anything, as long as you have well defined the needs and the main objectives!
Our technical stack allows us to create anything we want!

Adrien
CTO & Lead Developer
This service is for you if...
- You want to develop a new service for your customers in SaaS (Software-as-a-Service)
- You need to create a web service to improve or automate a process
- You want to create a web application to acquire or retain customers
- You have finished designing a web app and want to start developing it
Benefits
- A well-implemented and solid web service over time
- Modern and efficient technology
- Translations that are easy to change
Deliverables
- A fast and functional web application
- Adapted documentation
From startups to large businesses
They trust us

We were very satisfied with the work of Coteries on our new site. They are available, responsive, on-time and professional

Nicolas Seidler
,
Executive Director
,
GSPI

A highly competent, transparent agency that is easy to collaborate with. I highly recommend!

Gavin Lee
,
Data Science Engineer
,
Swiss Data Science Center

Coteries has been supporting us for more than 10 years to develop our digital solutions to our great satisfaction. I recommend!

Julian Bruno
,
Digital Experience Manager
,
EPFL Innovation Park

Coteries did a fantastic job creating an innovative, powerful and super intuitive user journey. Bravo!

Patrick Odoni
,
CEO
,
FixMySpace

Very pleasant to work with Coteries, they were open to our suggestions, and worked within our deadlines and our budget!

Brian Carlsen
,
CEO
,
Thot
A methodology based on quality & collaboration
1.
Creation
We put all the resources necessary for the creation and success of your project
2.
Feedbacks
We regularly present and explain the progress to you and collect your feedback in detail
3.
Improvement
We apply your feedback, so the end result always meets (and exceeds) your expectations
Quality above all
Our labels and awards prove our commitment to always bringing you the best



A dedicated and accessible team

Meet
The team
The team

Adrien
CTO & Lead Developer

Mégane
Software Engineer

Pep
Designer

Sébastien
Head of Design
FAQS
How goes the collaboration?
For all projects, we offer our customers dedicated and personalized follow-up. We act as substantive partners rather than just consultants.
A constant follow-up is carried out in person or by videoconference according to your preferences.
A constant follow-up is carried out in person or by videoconference according to your preferences.
How much do your services cost?
It all depends on your project! We'll estimate your project and make you an all-inclusive offer for its realization. A website, for example, can cost between CHF 5,000 and CHF 100,000 (or even more), depending on the degree of complexity and functionality required. Contact us for a tailor-made estimate!
How do you bill for your working time?
Our offers usually include a flat fee, without any bad surprises. In the meantime we ensure a detailed follow-up of each project. This includes tracking time on each task. You can even ask us for detailed reports if you want.
Will I learn by working with you?
Yes! We share our knowledge with you throughout the collaboration. This allows you to understand the methodologies and the ins and outs even if it is not part of your area of expertise.
Do you have examples of successful projects that you have completed in the past?