Cambridge Analytica has filed for bankruptcy in the US.
The consultancy firm was at the centre of the Facebook data-sharing scandal in which it was accused of improperly obtaining information on users.
The bankruptcy proceedings are part of the process of closing down the company and its UK parent, SCL Elections, that started in early May.
The company blamed a "siege of media coverage" for driving away customers and forcing its closure.
In court papers filed with a New York court, Cambridge Analytica said it had assets of up to US$500,000 and debts in the range of US$1 million to US$10 million.