Our Team

Isabel is the co-founder and co-executive director of Lead Research for Action (LeRA). She previously spent eight years at GiveWell, a global health research organization directing hundreds of millions of dollars annually to highly cost-effective programs. Her experience spans research, communications, and nonprofit management. Her academic background is in engineering, with published research in health policy modeling.​​

Tammy is the co-founder and co-executive director of Lead Research for Action (LeRA). Prior to LeRA, she was a researcher at Lead Exposure Elimination Project (LEEP). Tammy has previously also worked in statistical genetics research at the National Bureau for Economic Research, and environmental economics research at the US Environmental Protection Agency. She has published first- and second-author papers in journals including Nature and Science.