ZenPayroll, Inc., doing business as Gusto, provides cloud-based payroll and human resources software for small businesses. It operates an online platform that provides payroll, benefits, human resource, and integration services for employers and employees in the United States. It offers health benefits and workers’ compensation benefits that include medical insurance, commuter benefits, and 401(k) contributions, as well as workers’ compensation insurance plans; time tracking and integration services; and access to employees for processing payroll from web-enabled devices, such as smartphones and tablets. The company also provides access to employees and contractors to browse their previous pay stubs, review their payroll forms, verify their personal details, and statistics about their pay; tax payments and federal forms filing services; and security and support services. It serves startups, coffee shops, doctors, creative agencies, lawyers, and boutiques. ZenPayroll, Inc. was founded in 2011 and is based in San Francisco, California with an additional office in Denver, Colorado.