Local jobs could be at risk after the company behind Katies, Millers and Rivers went into voluntary administration.
The three brands combine to have four stores in the region.
The company had already announced it would shut stores for five other brands.
“Following recent attempts by the company to informally restructure its operations, the board of Mosaic has determined that voluntary administration is now the most appropriate way to restructure the group,” a statement said.
“The group will now capitalise on and invest in its Millers, Noni B, Rivers and Katies brands, along with a stand-alone online Mosaic marketplace.”
The company says it plans to continue to operate as the Christmas season approaches.
“With the group continuing to trade, management intends to progress its brand rationalisation and wider restructuring plan and to focus on the key Christmas and holiday trading period.”
FTI has been appointed as voluntary administrators and KPMG as receivers and managers.