The announcement came after coroner Judge Nicholas Loraine-Smith rejected calls from some relatives to rule that neglect by Tui or the owners of the Riu Imperial Marhaba Hotel in Sousse played a role in the deaths.
Kylie Hutchison, from solicitors Irwin Mitchell, confirmed in a statement on behalf of the families that they would be taking legal action against Tui.
“On behalf of our clients who lost members of their family and those who suffered in this terrible incident, we will now be preparing to commence civil proceedings against Tui for damages.