the prize was established by argonne national laboratory (anl), the national physical laboratory (npl), and the numerical algorithms group (nag). they sponsored the award every four years at the international congress on industrial and applied mathematics (iciam) beginning with the 1991 award. by agreement in 2015 among anl, npl, nag, and siam, the prize will be administered by the society for industrial and applied mathematics (siam) starting with the 2019 award.