The US Environmental Protection Agency defines brownfields as “real property, the expansion, redevelopment, or reuse of which may be complicated by the presence or potential presence of a hazardous substance, pollutant, or contaminant.” The existence of brownfield presents enormous challenges for cities across the United States. This report explores the possible roles nonprofits can play in brownfield development. As part of this investigation, the problems and opportunities brownfields offer socially, environmentally and economically are examined through literature review. Further on, three existing brownfields-specific nonprofit corporations are discussed through case studies. Each of these organizations The Guardian Trust, The Brownfields Stewardship Fund, and The Center for Creative Land Recycling, provide unique services facilitating the redevelopment of brownfields across the country. The lessons learned are then applied to the City of Dallas. The report concludes by exploring the potential roles the third sector could play in the redevelopment of brownfields in Dallas. With increased involvement, nonprofits can help convert brownfields back to their highest and best use for the benefit of the community. / text