Mike Lynch, a British software entrepreneur, was missing from his daughter's disappearance, but his body has been retrieved from the debris of a boat that sank off the coast of Sicily early on Monday.
After the luxury boat Bayesian sank during an unusual storm off the coast of Porticello, a fishing community east of Palermo, six bodies have now been brought ashore.
Hannah, the 18-year-old daughter of Mr. Lynch, remains the only individual who has gone missing.
A one-year-old kid and Mr. Lynch's wife Angel Bacares were among the fifteen survivors of the sinking out of the twenty-two passengers and crew members.
Technology tycoon Mike Lynch, his daughter Hannah, Morgan Stanley International bank chairman Jonathan Bloomer, his wife Judy Bloomer, Clifford Chance lawyer Chris Morvillo, his wife Neda Morvillo and the boat's chef Recaldo Thomas were lost when the Bayesian sank.
The bodies of all those missing have now been brought to shore with the exception of the final missing person, said by a source close to the family to be Hannah Lynch.
According to Italian law, officials are not allowed to share the names of the deceased until formal identification has taken place.
A decision on whether to raise the sunken yacht from the seabed is "not on the agenda", but will be in the future, a spokesman from the Italian Coastguard has said.
Vincenzo Zagarola told the PA news agency that the Italian Coastguard's working theory is still that the missing woman is somewhere inside the boat.
The wreck of the Bayesian is on the seabed at a depth of 50 metres (164ft).
Rescuers have described the operation as "complex", with divers limited to 12-minute underwater shifts.
In a statement confirming their parents' deaths, the Bloomer family described the couple as "incredible people and an inspiration to many".
Mr Thomas was described by his friend, Gareth Williams, as being a "well-loved, kind human being with a calm spirit"
A spokesperson for Clifford Chance, the law firm where Chris Morvillo was a partner, said the team was "in shock and deeply saddened".
Mike Lynch had been a significant figure in the UK tech industry since helping to establish Cambridge Neurodynamics - a firm that specialised in using computer-based detection and recognition of fingerprints.
Five years later, he co-founded the British tech firm Autonomy. In 2011, Lynch made his riches by selling his company to US computing giant Hewlett-Packard (HP) for $11bn (£8.6bn).
But an intense legal battle following the high-profile acquisition loomed over Mr Lynch for over a decade. He was acquitted of multiple fraud charges in the US in June, over which he had been facing two decades in jail.
The yacht trip with family and friends has been described as a celebration of his acquittal.