GnuCash - A personal and small-business financial-accounting software, licensed under GNU/GPL and available for Linux, Windows, Mac OS X, BSD, and Solaris.
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.
Datamolino - Process all invoices without retyping. We turn your invoices into structured electronic documents, that you can import directly into your accounting system.
Money Manager Ex - Money Manager Ex is a free, open-source, cross-platform, easy-to-use personal finance software.
DOKKA.com - The Future has Arrived: Accounting Process Automation