Internet entrepreneur Natalie Massenet is understood to be conducting a review of her fashion e-tail business Net-a-Porter.com.

Massenet is reportedly keen to secure a new investor for Net-a-Porter.com, which analysts believe could be worth up to£250 million if it were put up for sale. Massenet invested just£850,000 eight years ago.

Massenet is believed to have drafted in an investment bank to advise on options to expand Net-a-Porter.com. It is unclear whether Massenet or the business’s shareholders would favour a sale option.

According to newspaper reports, shareholders in Net-a-Porter include French luxury group Richemont and Venezuelan investor Baywinds, each of which have 28 per cent. Massenet is believed to have a 17 per cent stake in the company.

Last year, Net-a-Porter.com said it was adding by 3,000 customers a month, with an average order value of£500.