The gap in pro bono legal services provided by corporate legal departments and large private law firms is not surprising: The formalization of pro bono work by large firms has been underway on a significant scale for far longer than it has within corporations. This process has made large firm pro bono efforts more efficient and effective through improved practices. It has also led firm leaders and lawyers generally to expect more volunteerism of this sort. Companies that apply their resources, business experience, or other assets have successfully expanded the impact of their pro bono hours. Because of the scale of this need, and because legal-services lawyers have specialized expertise that corporate lawyers can't easily replicate, corporate pro bono efforts will not, on their own, close the justice gap. But these efforts have the potential to contribute significantly more to the ability of legal-aid organizations to serve their clients, and to help close this gap.