ASTMH membership reflects a wide range of expertise in tropical medicine. For this reason, Society subgroups provide unique forums for members to engage in core scientific, educational, advocacy and policy issues related to a specific expertise with fellow stakeholders of similar interests. Benefits of becoming a subgroup member include receiving information on networking, pre-meeting course and symposia activities planned for Annual Meetings to enhance career development.

Each subgroup is governed by leaders who are voted into office annually by its members. This ensures ownership of subgroup initiatives by those interested and invested in current topics of the field. Subgroup leaders are also active participants in discussions with the ASTMH Executive Committee. Such a governance structure ensures subgroup interests are represented in Society development goals intended to serve the ASTMH mission of reducing global health burden.

American Committee on Arthropod-Borne Viruses (ACAV)
American Committee of Medical Entomology (ACME)
American Committee on Clinical Tropical Medicine and Travelers' Health (ACCTMTH)
American Committee of Molecular, Cellular and Immunoparasitology (ACMCIP)
ASTMH Committee on Global Health (ACGH)