Sibling’s managing director Mandy Galmes joins Hill + Knowlton Strategies as CEO
Mandy Galmes, The managing director of creative agency Sibling, has joined PR agency Hill + Knowlton Strategies as its CEO.
Galmes’ appointment to Hill + Knowlton Strategies comes three months after the agency’s managing director Penelope Holloway resigned.

Galmes is replacing Penelope Holloway