The group has published numerous bestselling books by notable authors including Ian Rankin, Michael Connelly, Nemir Kirdar, and Quentin Tarantino.
In the same year (1993), Orion acquired a warehousing and distribution centre called Littlehampton Book Services (LBS), which was based in Sussex in the UK.
In December 1998, Orion acquired publishing house Cassell, whose imprints included Victor Gollancz Ltd.
There were bestsellers from Ian Rankin and Michael Connelly in fiction, along with strong sales from Noel Fitzpatrick and Arsène Wenger on the non-fiction side.
This financial success, along with "virtual events and effective digital marketing" (Adam Kay's Dear NHS anthology raised nearly £400,000) saw the Orion Group win the publishers' prize in 2021.