BillGrid.com - BillGrid is an easy to use online invoicing, billing and expense management system that will save you time with tracking clients projects, expenses, invoices and payments.
Workday - Workday is an on‑demand financial management and human capital management software solution.
ChargeOver - ChargeOver automates recurring billing, subscription billing, & payment acceptance. A SaaS that integrates with Xero, Quickbooks, & has an API. Free trial.
BambooHR - Personalized HR software for SMBs
Elorus - A super-easy online invoicing & time tracking software
Paychex Flex - Paychex Flex is a tool that reduces the complexity and risk of running your own payroll while ensuring greater accuracy with-up-to-date tax rates and regulatory information.