A human adventure

We believe in a world in which people are the most important factor in a company's success. As a sustainable partner, we create opportunities for our clients to focus on their strategic goals and the realisation of their vision. Our mission? To relieve you of the tasks of managing human resources and pension funds so that you can concentrate on your core business.

Trianon SA is a Swiss company at the forefront of human resources management and pension funds.

Founded in 1997 by independent partners, the company has grown rapidly and now employs over 200 people in Nyon, Bern and Zurich. In January 2016, Trianon became a company of the Swiss Mobiliar Cooperative.

Trianon counts more than 140 companies, including 75 multinationals, among its clients. We offer tailor-made outsourcing solutions to enable you to enhance the human capital of your organisation.

Our advantages

Unique partner

A unique and strong partner to manage all your human resources outsourcing needs

Efficient optimisation

Optimised processes, cost savings and transparent communications

Effective management systems

Easy interfacing with your management systems (SAP, Peoplesoft, Oracle, Hypervision, Workday, etc.)


Our goal? To build a relationship of trust together to find the most efficient and transparent solutions for your organisation, while respecting your independence.

  • We are committed to creating added value for you through our expertise, innovation, integrated services, flexibility and IT solutions
  • We value the spirit of trust and collaboration that we build together
  • We offer our employees a healthy, friendly and stimulating career at Trianon that contributes to their development. For you, their well-being means a guarantee of excellent work at Trianon, as well as a listening ear and availability that meets your expectations.
  • We are proud of our independent and responsible employees. We want to guarantee them job stability so that we can offer you long-term contacts who are motivated to satisfy you.
  • We guarantee equal treatment regardless of sex, age or origins and we accept people’s differences.
  • We provide a working environment where the values of respect, sharing, integrity, determination and professionalism prevail.


Trianon participates in the Ecovadis assessment programme. This year, with a 2-point improvement in its score, Trianon was awarded a bronze medal. Ecovadis assesses corporate social responsibility (CSR) in the following thematic areas: Environment, Social & Human Rights, Ethics and Responsible Sourcing. A total of 130,000 companies worldwide participate in the programme. With this medal, Trianon is among the top 35% of assessed companies in the same industry.