Ahead of their merger this spring, Allen & Overy and Shearman & Sterling have turned to management consulting firm McKinsey & Co. and accounting firm KPMG for advice on the integration, the firms confirmed Friday.

In a joint statement, the firms said they are working with McKinsey and KMPG to “help us shape our new firm to meet the current and future needs of our clients and colleagues.” The firms added: “This ranges from operational integration through to ways of working, so that the strength and global reach of A&O Shearman will be underpinned by agile, effective, and client-focused processes and procedures.”