This chart lists the nation’s 200 highest-grossing firms ranked by their pro bono score. Half of the score comes from the average number of pro bono hours per lawyer in 2011, while the other half represents the percentage of lawyers who performed more than 20 hours of pro bono work. Calculations are based on the number of lawyers in U.S. offices only as of December 31, 2011.

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, on non-legal work for charities, or on boards of nonprofit organizations. A score of 0 indicates that pro bono numbers were not submitted.