The contributor to RISC-V PLIC specification in alphabetical order:

Abner Chang <abner.chang@hpe.com>
Andrew Waterman <andrew@sifive.com>
Bin Meng <bmeng.cn@gmail.com>
Drew Barbier <drew@sifive.com>
Jeff Scheel <jeff@riscv.org>
Jessica Clarke <jrtc27@jrtc27.com>
Jinyan Xu <phantom@zju.edu.cn>
Krste Asanovic <krste@sifive.com>
Palmer Dabbelt <palmer@dabbelt.com>
Robert Balas <balasr@iis.ee.ethz.ch>