Manx advocates Cains has topped the polls in a survey of law firms serving clients on the Alternative Investments Market.
The company, based in Athol Street, Douglas has eight clients listed on AIM, the highest number of any law firm.
Cains also leads the market in terms of total market capitalisation.
Figures show the total market capitalisation of companies represented by Cains is £4.41 billion.
The statistics were compiled by top law magazine Legal Week.