Checkbook is building a highly efficient Digital Payment system focused on sending/disbursing payments. It eliminates paper checks completely while increasing efficiency and security by providing a choice of settlement rails and seamless recipient experience. Based in San Mateo, CA, Checkbook was founded in 2015 by former VISA Chief Network Architect PJ Gupta and is funded by multiple VCs and individual investors including Tim Draper, Rocketship.vc and others.