Holtzbrinck Publishing Group is a privately held German company headquartered in Stuttgart, that owns publishing companies worldwide. Through Macmillan Publishers, it is one of the Big Five English-language publishing companies.

Macmillan Publishers is a British publishing company traditionally considered to be one of the 'Big Five' English language publishers. Founded in London in 1843 by Scottish brothers Daniel and Alexander MacMillan, the firm would soon establish itself as a leading publisher in Britain. It published two of the best-known works of Victorian era children's literature, Lewis Carroll's Alice's Adventures in Wonderland (1865) and Rudyard Kipling's The Jungle Book (1894).