Back to expert network directory Round Table Group Round Table Group is an expert network focusing on expert witness services. It was acquired by Thomson Reuters in 2010 and sold back to the founders in 2019 About Round Table Group Round Table Group is an expert network focusing on expert witness services. It was acquired and rebranded as Thomson Reuters Expert Witness Services in 2010. In 2019, the founders bought back Round Table Group and relaunched it under its original name.Visit the company website here.