Cambridge Analytica, the political consultancy at the centre of the Facebook data-sharing scandal, is shutting down, it was reported on Wednesday.
The firm was accused of improperly obtaining personal information on behalf of political clients.
According to Facebook, data about up to 87 million of its members was harvested by a quiz app and then passed on to the political consultancy.
The social network said its own probe into the matter would continue.
“This doesn’t change our commitment and determination to understand exactly what happened and make sure it doesn’t happen again,” said a spokesman.
“We are continuing with our investigation in cooperation with the relevant authorities.”
The company has been accused of using the personal data of millions of Facebook users to sway the outcome of the US 2016 presidential election and the UK Brexit referendum.
The UK-based company, which denies any wrongdoing, has an extensive record of working abroad on many election campaigns, including in Italy, Kenya and Nigeria.
“Over the past several months, Cambridge Analytica has been the subject of numerous unfounded accusations and, despite the company’s efforts to correct the record, has been vilified for activities that are not only legal, but also widely accepted as a standard component of online advertising in both the political and commercial arenas,” says a statement on the firm’s website.
“Despite Cambridge Analytica’s unwavering confidence that its employees have acted ethically and lawfully… the siege of media coverage has driven away virtually all of the company’s customers and suppliers.
“As a result, it has been determined that it is no longer viable to continue operating the business.”
The statement added that its parent company SCL Elections was also commencing bankruptcy proceedings.