Scholars utilize a variety of research methods in studies of interest group formation, presence and influence. From aggregate counts of interest group populations to in-depth participant observation, scholars have used a variety of methods in studies of interest groups' role(s) in the policy process. The application of survey research has proven to be a successful method for obtaining group-specific information across a variety of group types and settings. Though organizational sampling and methods of survey dissemination can differ dramatically across studies, the subfield lacks a comprehensive review of the use of surveys within interest group research. This paucity leaves unanswered several questions regarding the frequency and efficacy of survey research within the subfield. What types of questions have been answered via surveys of organizations? What benefits are provided by this methodological approach? What challenges emerge when surveying interest groups and how have scholars overcome these obstacles? These questions are pertinent to scholars of interest groups and survey researchers alike, and this review provides guidance for the construction and dissemination of future interest group surveys.Scholars utilize an extensive array of research methods in the exploration of interest group formation, presence and influence. From aggregate counts of interest group populations to in-depth participant observation, the question of how interest groups function in the policy process has been, and continues to be, explored from myriad angles. Of these many approaches, survey research has proven to be one successful method for obtaining group-specific information across a variety of organizational types and settings. Though organizational sampling and methods of survey dissemination can differ dramatically across studies, the subfield lacks a comprehensive review of the use of surveys within interest group research. This review 1 provides information about the use of surveys in studies of interest groups with a focus on research questions that have been answered via survey methods, the unique challenge of identifying