WCG is the nexus of clinical research, overseeing more studies than any other provider. Our clients include all major sponsors and contract research organizations (CROs), as well as the leading institutions and principal investigators (PIs). In the course of our oversight, we have amassed performance data on over 36,000 of the approximately 40,000 (about 90 percent) FDA-regulated PIs in the United States, and over 2,300 institutions in North America. These data are powerful; they enable us to identify and recommend the most efficient research sites and highest performing investigators in every area of clinical research concentration.

With over 2,300 institutional partners, WCG is the Institutional Review Board (IRB) of record for the largest network of research sites in the world. Through our patented Single Review Solution™ (SRS), WCG connects sponsors and contract research organizations (CROs) with qualified client institutions, eliminating the burden of working with multiple IRBs. By harnessing the power of the network, we enable our clients to work with a single IRB, and to manage the IRB review process and its related documentation in one place.


At WCG, we focus on making our clients successful. We create solutions that accelerate the advancement of science, while preserving the highest standards of ethics, quality and regulatory compliance.

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