Paycom Software, Inc., known simply as Paycom, is an American online payroll and human resource technology provider based in Oklahoma City, Oklahoma with offices throughout the United States. It is attributed with being one of the first fully online payroll providers. It has been recognized by Fortune and Forbes as one of the fastest-growing publicly traded companies in the world, and as one of the World's Most Innovative Enterprise Companies by Fast Company in 2022. Founded in 1998, it reported annual revenue of $1.06 billion for 2021, up from $841.1 million for 2020.