Ms Ronzitti has been the General Secretary of SGI Europe (CEEP until December 2020) since May 2012. She reached this position after having worked for the organisation for nine years.
Ms Ronzitti has been an active member of the REFIT Platform (stakeholder group) from 2015 until 2019, where she represented the public services community and was rapporteur for Employment and co-rapporteur for Competition policies. She is now a Member of the Fit4Future Platform, led by European Commission Executive Vice-President Maroš Šefčovič.
Between June 2021 and May 2022, she represented SGI Europe in the Plenary of the Conference on the Future of Europe. She has also been an active Member of the Board of the European Movement International since 2017, and is Vice-President since 2020.