- Mark Harrington
Mark Harrington is TAG's executive director and a founding member
- Scott Morgan
Scott Morgan is TAG's deputy director.
- Tracy Swan
Tracy Swan is the Hepatitis/HIV Project Director at TAG
- Richard Jefferys
Richard Jefferys is coordinator of TAG's Michael Palm Basic Science, Vaccines, and Prevention Project
- Javid Syed
Javid Syed is the TB/HIV Advocacy Project Director at TAG
- Claire Wingfield
Claire Wingfield is coordinator of TAG's TB/HIV Advocacy Project
- Sue Perez
Sue Perez is TAG's policy director.
- Lei Chou
Lei Chou is the Hepatitis/HIV Project Coordinator and a hepatitis B specialist
- Joseph McConnell
Joseph McConnell is TAG's administrator and office manager
- Coco Jervis
Coco Jervis is TAG's Senior Policy Associate for US & Global Policy