Pan Macmillan UK is one of the largest general book publishers in the UK, with imprints including Kingfisher, Macmillan, Pan, Picador, Boxtree, Sidgwick & Jackson, Tor, Macmillan Children's Books, Young Picador and Campbell Books. 

Macmillan USA is dedicated to publishing today's best writers and thinkers in all formats, encompassing the fields of literature, textbooks and academic publishing. The group includes the well-known individual publishing houses Farrar, Straus & Giroux, First Second Books, Henry Holt, Macmillan Audio, Palgrave Macmillan, Picador, Tor Books, Roaring Brook Press, St. Martin's Press, and the Bedford, Freeman & Worth Publishing Group.

Pan Macmillan Australia is recognised as having one of Australia's most successful non-fiction lists. With a strong emphasis on biography, memoir, history, travel, sport and current affairs, the list blends commercial success with critical acclaim. Among other awards in 2007, Pan Macmillan non-fiction titles won the Australian Publishing Industry's Book of the Year and the Prime Minister's Prize for Australian History.