The Sun can reveal that last year the 28-year-old’s company, Productions Ltd, racked up cash and assets to the tune of £1.2million.
Demi runs a firm that takes in the money from modelling work and sponsored posts for firms on social media.
Earlier this year she set up a second company called Demi Rose Enterprises Ltd but the concern is yet to file any annual accounts.
Demi has amassed more than 20m fans on Instagram since she shot to international fame when she was pictured on a date with Kylie Jenner’s first love Tyga in Cannes back in 2016.
She also briefly dated DJ Tom Zanetti in 2017 and DJ Chris Martinez in 2018.