GnuCash - A personal and small-business financial-accounting software, licensed under GNU/GPL and available for Linux, Windows, Mac OS X, BSD, and Solaris.
Workday - Workday is an on‑demand financial management and human capital management software solution.
Synder - AR Automation
BambooHR - Personalized HR software for SMBs
Xero - Xero is online accounting for your small business.
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.