Sandwich chain Eat has said it is "considering various options" as staff costs, increasing rents and increased business rates bite.
The firm is working with professional service company KPMG to assess its position.
A spokesperson for the chain said: "EAT is considering various options regarding its business but absolutely no decisions have been taken."
In the year to 30 June 2017 like-for-like sales grew 5% but the company, which has about 100 outlets, is believed to be looking at options to offset challenging industry pressures.
Since January a number of high-profile players in casual dining, including Byron, Jamie's Italian and Strada, have announced plans to scale back or pursue Company Voluntary Agreements.
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