WageWorks wants to make administration of tax-advantaged spending accounts easier. The company helps some 5,000 clients -- including more than 50% of the Fortune 100 companies -- implement and manage flexible spending accounts used for health, wellness, and dependent care, as well as commuting and tuition expenses. The WageWorks SaaS (software as a service) platform also can be used for health savings accounts and other health care reimbursement programs. Its online tools provide real-time visibility into account activity and the ability to work with any combination of insurance carrier or financial institution. Founded in 2000, WageWorks operates through about 10 offices across the US. It went public in 2012.