Martha became a crossbench peer in the UK House of Lords in March 2013. She is the President of The British Chambers of Commerce and a Director of Peers for the Planet, putting climate change and biodiversity loss at the top of the political agenda. Martha chairs registered b-corps, WeTransfer. She is a Director at Chanel, where she chairs the Sustainability Committee. Martha is also Chancellor of the Open University and co-founder of Lucky Voice karaoke in 2005 and lastminute.com back in 1998.