Thai restaurant group Busaba has started working with the financial firm KPMG to examine its options.
The group, established by the prolific Hong Kong-born restaurateur Alan Yau in 1999, has 13 sites across London.
When contacted, KPMG declined to make further comment relating to the matter.
Busaba at one point expanded beyond London, but in 2018 solidified its retreat to the capital after the closure of its last out-of-capital site in St Albans.
Forays into both Manchester and Liverpool lasted only a year each, with heavy competition and poor sales to blame.
Last year, Busaba Eathai Holdings was acquired by Muzinich Private Debt through holding company Curry Acquisitions.