This chart ranks The Am Law 200—the nation's 200 highest-grossing firms—by their pro bono score for work performed by U.S.-based lawyers. Half of the score comes from the average number of pro bono hours per lawyer in 2017, while the other half represents the percentage of lawyers who performed more than 20 hours of pro bono work. Calculations are based on lawyer counts as of Dec. 31, 2017. The chart includes only firms that provided information on their lawyers' pro bono work. There were 62 firms that declined to provide complete information about their domestic pro bono work.

We define pro bono work as legal services donated to organizations or individuals that could not otherwise afford them. We do not include work done by paralegals or summer associates, nor time spent on bar association work, nor on nonlegal work for charities or on boards of nonprofit organizations.