This article describes one community-based nonprofit group that provides free tutoring to poor children under the No Child Left Behind (NCLB) law. Unlike most other tutoring sessions under the law, the one at Erie Neighborhood House, a social-services agency in Chicago, is not happening in a school building or at a corporate tutoring outlet. Those types of providers serve the vast majority of the students receiving tutoring--also known as supplementary educational services, or SES--under the federal law. Most of the debate over when and how to offer SES, in fact, has been over whether school districts or for-profit companies are better suited to help children from schools that are not making their annual achievement targets under the NCLB law. Community-based nonprofit organizations are small, but important participants in the supplementary market. In addition to Erie Neighborhood House, other nonprofit groups offering the tutoring include the Urban League in cities such as Memphis and Chattanooga, Tennessee, and the United Farm Workers union in Arizona, California, and New Mexico. Such nonprofit organizations are closely connected to their local community members and are trusted by them. They also can alter existing programs easily to add the tutoring that students need to improve their academic standing. At Erie Neighborhood House, the nonprofit group's leaders decided to offer NCLB-related tutoring as part of the after-school program that it has operated for more than 30 years. Unlike the competitive relationship between businesses and school districts, Erie has a long history of working with local elementary schools.