As of 2010, Hilborne joined the board of trustees of the
UK Green Building Council. She later became vice chair of the UK Green Building Council. Hilborne was one of the members of an independent panel on forestry which was formed in December 2010 and reported on 4 July 2012. Hilborne served on the Smarter Environmental Regulation Review of the
Department for Environment, Food and Rural Affairs in 2014-2015. She was chief executive of The Wildlife Trusts from 2004 to 2019. She became the CEO of Women in Sport in 2019. ==Honours==