Trianon SA Information

Trianon SA is a Swiss enterprise at the forefront of personnel management and pension processes. Our business process outsourcing services remove the administrative burden in managing complex human resources activities. Founded in 1997 by independent experts, we remain passionate and invest in our talented people to manage ever-changing administrative tasks in an agile environment. In January 2016, Trianon became a subsidiary of the Mobiliar Group (Swiss cooperative). It then joined Centre Patronal in October 2025, marking a new chapter in its history. This development is part of our ongoing growth and paves the way for new synergies, benefiting both our clients and employees. With 28 years of experience and more than 200 employees in 3 locations (Nyon, Bern, Zürich), we help our clients across Switzerland with efficient and modular outsourcing services. Our multi-language services are supported by a digital communication solutions. Data is generated, provided and hosted in Switzerland meeting the standards of information security. Our personalized solutions help you to meet the needs of your workforce and provide with the synergies: - Pension fund administration for your established occupational pension scheme - Affiliation to a collective foundation: Our partner FCT (Foundation Collective Trianon) offers personalized, flexible solutions for employers and employees in Switzerland. - Payroll and HR administration services - Administration of non-planned absences and related claims - Management of your group health insurance plans Today 42+ institutions with more than 1 100 affiliated companies, 66 000 of active insured, 5000 of retirees and 8 billion of fortune have entrusted the administration of their pension solution to us. 60 companies have selected us as their outsourcing partner for payroll and absences/claims management. We ensure that more than 18.000 of our clients’ employees get their pay right every month.