AltTox.org – Non-animal Methods for Toxicity Testing

CAAT – Johns Hopkins Center for Alternatives to Animal Testing

Chemical Testing in the 21st Century – Environmental Defense Fund

ECETOC – European Center for Ecotoxicology and Toxicology of Chemicals

Hamner Institutes – Toxicity Testing in the 21st Century

HESI – The Health and Environmental Sciences Institute

Safety Science in the 21st Century – Unilever

TERA – Toxicology Excellence for Risk Assessment

Tox21 – a project of the Environmental Protection Agency (EPA), National Institutes of Environmental Health Sciences (NIEHS)/National Toxicology Program, National Institutes of Health (NIH), National Institute of Health Center for Advancing Translational Sciences and the Food and Drug Administration (FDA)

The Virtual Liver Project – EPA