We’ve seen some sweeping pro-business U.S. Supreme Court rulings of late, but there’s a good argument that no decision will have more impact on the business community than Mayer Brown’s victory last year in AT&T v. Concepcion. The court’s 5-to-4 ruling, which allowed AT&T Mobility LLC to enforce an arbitration contract with its customers, paves the way for companies to avoid class actions in a range of contractual situations, from consumer matters to employment disputes.

“We feel pretty passionately that this decision will be felt broadly across our litigation system and will be positive for the litigation system,” says Mayer Brown partner Andrew Pincus, who made the Supreme Court argument (and has 21 other high court appearances under his belt).