Record financial years, a tight talent market and differing philosophies on what it means to be a partner are driving many Big Law firms to promote record partnership classes this year.

On Thursday, Mayer Brown announced its largest-ever class of partners and counsel with 65 promotions throughout the firm. Similarly, Willkie Farr & Gallagher announced on the same day that it had promoted one of its largest classes ever, with 31 partners making the cut.