A statement from the UK’s Serious Fraud Office said that the scheme had targeted British nationals and other expatriates living in Mallorca as well as investors in France and the USA.
Over £10m was allegedly obtained from investors, whose losses are estimated to be around £6m according to the SFO.
Daniel Hirst, Linda Christine Hirst and Zoe Waite were charged with offences under the Proceeds of Crime Act 2002.
This follows the charging of John Neil Hirst in March this year with conspiracy to defraud and money laundering offences.
John Hirst operated Gilher Inc, a Panama-based and Seychelles-registered company, which invested funds on behalf of private clients. The SFO began its investigation in November 2009 following complaints.
The involvement of other suspects is also being investigated.