GnuCash - A personal and small-business financial-accounting software, licensed under GNU/GPL and available for Linux, Windows, Mac OS X, BSD, and Solaris.
Bench - Bench is the online bookkeeping service.
Synder - AR Automation
Ernst & Young - Ernst & Young is the world’s most global professional services firm.
Xero - Xero is online accounting for your small business.
Healy Consultants - Healy Consultants Group PLC is the best in the world at business set up in every country on the planet.