GnuCash
A personal and small-business financial-accounting software, licensed under GNU/GPL and available for Linux, Windows, Mac OS X, BSD, and Solaris.
Manager.io
Manager is a fully-featured 100% Free Accounting Software for Small Business.
QuickBooks
Business runs better with QuickBooks, the #1 accounting solution for small business.
Zoho Books
Smart Accounting for Growing Business.
AccountEdge
AccountEdge is small business accounting software for Mac, Windows, and Mobile.
