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.
MoneyMoney - Alle Bankkonten im Blick mit MoneyMoney. Finden Sie heraus, wo Ihr Geld herkommt und wo es hingeht.
Xero - Xero is online accounting for your small business.
KMyMoney - KMyMoney is a personal finance manager for KDE.
Wave Financial - Award-winning financial software designed for entrepreneurs.