Banking giant HSBC has signed up Mayer Brown JSM to its knowledge-sharing venture, taking the tally of law firms sharing legal know-how with the bank to 11.

HSBC officially rolled out its SmartSearch software, which allows its in-house legal team to access know-how and precedents at panel firms, in January with 10 panel firms. Mayer Brown’s data will now be available to HSBC by the end of the month.