Gallagher has appointed Sonja Bollier as a senior aviation broker in Switzerland. With over 35 years of insurance experience, Bollier will support the expansion of Gallagher’s aviation offering in Europe. She joins the firm from Hesse Digital Services, where she was a risk transfer expert. Prior to that, she had held senior roles in Zurich, AXA XL, Scor and Allianz. Commenting on the appointment, Nepomuk Loesti, chief commercial officer for Europe at Gallagher, says: “Internationally, Gallagher has one of the largest and most experienced aviation teams, and having Sonja operate from continental Europe demonstrates our commitment to ensuring our clients get access to the very best talent and advice.”