Toggl - Toggl is an online time tracking tool. It features 1-click time tracking and helps you see where your time goes. Free and paid versions are available.
Bill.com - Bill.com provides ACH payments processing, automates your accounts payable and accounts receivable processes.
Harvest - Simple time tracking, fast online invoicing, and powerful reporting software. Simplify employee timesheets and billing. Get started for free.
Invoiced - Invoiced is simple invoicing for freelancers and small businesses.
RescueTime - Time management software that shows you how you spend your time & provides tools to help you be more productive.
Armatic - SaaS and services companies run on Armatic. Armatic replaces Recurly, Gainsight, Pandadocs, bill.com, Delighted, and many other SaaS solutions with one Armatic system, connected to your CRM and accounting software. Get rid of your SaaS overload.