- 1896 – DAILY MAIL FOUNDED : Brothers Alfred and Harold Harmsworth edit, produce and oversee the launch of the Daily Mail.
- 1922 – DMGT FOUNDED: DMGT is established to manage the family’s newspaper interests
- 1932 – LONDON STOCK EXCHANGE FLOTATION: DMGT is listed on the London Stock Exchange
- 1988 – DMG EVENTS ESTABLISHED: dmg::events is formed ( under a different name) to manage and develop a portfolio of events assets.
- 1990 – DMG INFORMATION FOUNDED: dmg::information is formed ( under a different name) to manage and develop a portfolio of business-to-business information companies.