We are pleased to announce that XRpro Sciences, Inc. of Cambridge, Massachusetts, has become the newest SOT Affiliate. The company provides HTS for transporters and ion channels, even in serum or high DMSO concentrations, in all standard 384–well plates.Their technology uses no radioisotopes, dyes, or fluorophores, and provides cost–effective hERG screens that can easily be justified early in the drug candidate selection process. For additional information, please visit the XRpro® website. Consider demonstrating your organization’s support of the Society of Toxicology by becoming an SOT Affiliate. For additional information, visit the SOT Affiliates section of the SOT website and contact Marcia Lawson at SOT Headquarters.