Sydney designer Johanna Johnson has made headlines dressing the Hollywood A-list for the red carpet. Now her former employees are seeing red over her alleged failure to pay them tens of thousands of dollars in entitlements.

The Alexandria-based bridal and red carpet couturier, who has dressed the likes of Mad Men's Christina Hendricks and Foreign Affairs Minister Julie Bishop, is at the centre of a legal battle to wind up her company after it failed to comply with a court order to pay a former staff member more than $35,000.

Alana Teasel is owed more than $35,000 by Johanna Johnson's company. Credit:Daniel Munoz

Ms Johnson posted on Facebook on Thursday about the company's "expansion plans", which include relocating headquarters to the United States.

But designer Alana Teasel, 29, a former head of production at Ms Johnson's company, is one of a number of former staff members who claim Ms Johnson owes them thousands in entitlements, including superannuation.