Sage Intacct - Intacct is a cloud-based accounting and financial management system that is designed for the businesses of all levels.
Sitecake - Drag and drop CMS for HTML websites. It's flat file CMS so it's pretty fast.
SAP ERP - SAP ERP is enterprise resource planning software developed by the German company SAP SE.
Anchor CMS - Free and lightweight blogging system
Odoo - An all-integrated business app suite to unleash your growth potential.
Textpattern - Textpattern is an elegant content management system that is free, open source software.