The largest component of the NPI Media Group was Tempus Publishing, founded by Alan Sutton in 1993.

Tempus Publishing's early years were spent producing local history titles, principally books of old photographs depicting towns and villages throughout the UK.

[5] Tempus Publishing later opened offices in both the US and Europe, although these are no longer in use today by The History Press.

Based in Dublin, it publishes a wide range of books including history, current affairs, biography, photography and historical fiction.

Until 2019 The History Press was based in The Mill, Brimscombe Port, near Stroud in Gloucestershire, and then moved to central Cheltenham.