Head office Lucerne by night

Company

CSS can look back on over 125 years of experience. When it comes to their health, some 1.7 million people place their trust in the CSS Group.

What is CSS?

The CSS Group insures around 1.7 million people and, with a premium volume of 7 billion Swiss francs, is one of Switzerland's leading health and property insurers. It is the market leader in basic insurance. The annual report provides an overview of the past financial year of the CSS Group.

United for over 125 years

The success story of CSS as a community of solidarity begins back in 1899 when 60 members of the Catholic Workers' Association joined forces to protect themselves from the real consequences of illness and accidents. This was a time when a fall or injury not only led to job loss, but also total financial ruin. To this day, the values of CSS are based on the principles of solidarity and fairness.

Recognition as a health insurance company

In 1914, the Federal Social Insurance Office officially registered the 'Christlichsoziale Krankenkasse der Schweiz' (Christian Social Health Insurance Association of Switzerland). In 1925, the name was changed to 'Christlichsoziale Kranken- und Unfallkasse der Schweiz (CKUS)' (Christian Social Health and Accident Health Insurance Association of Switzerland), which remained in use until the late 1980s when it was replaced by the name “CSS”.

How we’re organised

Our vision

We accompany our clients on their personal journey.
Find out more

The CSS brand

CSS is a strong brand in the Swiss healthcare system.
Find out more

CSS Group

Several companies make up the CSS Group.
Get to know us

CSS Management

The Board of Directors and Corporate Executive Committee lead CSS.
View now

CSS Association

The CSS Association is the sole shareholder of the CSS Group.
Find out more

Nationwide proximity to clients

In 1919, CSS relocated from St. Gallen to Lucerne. Initially based on Zürichstrasse, its headquarters are now located on the other side of the Reuss River in the Tribschen district. This means CSS has called Lucerne home for over 100 years. Today, around 1,500 people work for CSS in “Tribschen Town”.

Over 100 agencies and administrative offices

With the construction of the CSS Romandie Centre in 2013, CSS strengthened its presence in French-speaking Switzerland. In Lausanne-Vennes, the 500 jobs from the various administrative offices in French-speaking Switzerland were brought together under one roof. A relocation in 2025 from Breganzona to Lugano will see an expansion in Ticino. With all its administrative offices and over 100 agencies, the CSS Group is close to its clients throughout Switzerland.

Anniversary: 125 years of CSS

To mark its 125th anniversary, we’ve collected the milestones, faces and stories that chart the history of CSS.

The Number 1

CSS Group

The CSS Group insures more than 1.75 million people and is one of Switzerland's leading health, accident and property insurers. It is the market leader in basic insurance. With 101 agencies and around 2,800 employees, the CSS Group is close to its customers throughout Switzerland.

Find out more

Your health partner

As a health partner, we are committed to leading a healthy life, actively taking steps to regain one's health and developing a mindful approach to illness.

Being healthy

We help our clients find and maintain their balance, physically and mentally.
For a healthy life

Becoming healthy

We help anyone who is ill or has medical questions to find their way through the maze and quickly get the answers they need.
Steps to getting healthy

Living with illness

We have additional offers that encourage a mindful approach to chronic diseases.
Coping with illness