The London Stock Exchange has taken the unprecedented step of fining Nabarro Wells £250,000 (€358,459), after a review uncovered widespread deficiencies inculding administrative inadequacies and failing "to act with due skill and care" at five of seven companies that it advised.

The LSE fined the UK advisory boutique following a formal review in 2006 of seven Aim-listed businesses advised by Nabarro that the exchange selected for examination. The review found that Nabarro, which at present advises 42 Aim-listed businesses, had materially breached rules in respect of five of the seven and cleared the companies of any wrongdoing.