The Society for Industrial and Applied Mathematics (SIAM) has elected the 2020 Class of SIAM Fellows. These distinguished members were nominated for their exemplary research as well as outstanding service to the community. Through their contributions, SIAM Fellows help advance the fields of applied mathematics and computational science. Among the new SIAM Fellows are Kavita Ramanan and Ruth J. Williams. Kavita Ramanan, Brown University, is being recognized for contributions to constrained and reflected processes and stochastic networks; and Ruth Williams, University of California San Diego, is being recognized for contributions to the study of stochastic processes and their applications.