TurboCASH - TurboCASH Accounting Free and Open Source Accounting Software for Small to Medium Business.
GnuCash - A personal and small-business financial-accounting software, licensed under GNU/GPL and available for Linux, Windows, Mac OS X, BSD, and Solaris.
Fentury - Personal financial advisor, money & budget manager
Xero - Xero is online accounting for your small business.
HomeBank - Access Financial Services. Easy, fee-free banking for entrepreneurs Get the financial tools and insights to start, build, and grow your business.
CashManager - Online & desktop accounting software