Your reliable partner for digital appointment processes

Calenso is your partner for efficient and flexible appointment processes. The user-friendly software is the first choice for companies looking for a secure, legally compliant and customizable online appointment scheduling solution.

Two Swiss software scale-up founders standing side by side

Facts and figures about Calenso

Founded in Lucerne, Switzerland
25 +
10 million +
agreed deadlines
29 million +
Sent messages

What is Calenso?

Calenso is a Swiss software company based in Lucerne that offers an all-in-one solution for the digital organization and execution of appointments. Since its foundation in 2016, Calenso has been pursuing the vision of simplifying the appointment scheduling process and making it more efficient and customer-oriented.

Leading brands trust Calenso


Leading brands trust Calenso

Calenso has established itself as the first choice for leading companies such as Volkswagen, Helvetia Versicherungen, Diro Kanzleinetzwerk, Kanton Zürich, REMAX Europe and Building Materials Europe by providing innovative and secure solutions. Calenso's appointment process software helps these companies to optimize their business processes and digitize their appointment processes.

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Strong network of partners

Calenso works closely with a broad network of best-in-class software partners to provide the best possible digital support to our customers. Through partnerships with Bexio, Unblu, FTAPI, Ajila Forms, Contactify and Digipublic, we are able to offer our customers across Europe an advanced digital solution that matches your business processes.

Strong network of partners


So how did Calenso come about?

Calenso has developed from a start-up founded by three founders with years of experience in the IT and insurance sector into a professional team of more than 25 motivated individuals.

A good 10 years ago, Patrick and Michael Breiter were fed up with the outdated way of making appointments. During a Christmas dinner, they decided to tackle this problem and the idea behind Calenso was born. Thanks to an experienced and industry-savvy management team, Calenso is now the leading all-in-one solution for online appointment processes for large companies in Europe.

Marvin Felder Calenso (

Marvin Felder

CEO & Co-Founder

Patrick Breiter

CTO & Co-Founder

Michael Breiter

VRP & Co-Founder

Our values

Our values are the foundation of our product and our team at Calenso. We pride ourselves on providing our customers with innovative and user-friendly solutions for their appointment management, focused on efficiency, data security and improving the customer experience.

Customer First

We offer a superior product and unsurpassed service that together provide our customers with world-class value and help achieve their goals.

Data security

Security is our top priority. We guarantee the protection of our customers' data by complying with data protection laws and applying the highest security standards.

Innovative strength

We are constantly looking for innovative solutions to continuously improve our products and services and offer our customers added value. As a result, we always have our finger on the pulse of time.


By working closely with our clients and understanding your industry, we develop customized solutions to help you streamline your scheduling processes and achieve your goals.

Made in Switzerland

Made in Switzerland

Calenso is headquartered in Switzerland and serves both local and international markets with a combination of tradition and innovation. Swiss quality characterizes our actions and our offerings - we attach great importance to reliable services and a first-class customer experience. Our data processing and storage takes place exclusively in Switzerland to ensure the highest security standards.

Tech hub in India

Part of our development team is based in Bangalore, known as a center of global technology innovation. These experts bring valuable experience from leading technology companies such as Microsoft and Apple. This know-how flows directly into the development of our appointment automation solutions to ensure consistency, security and innovation.

Tech hub in India

Do you have any questions?

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Calenso in the media