ERPNext - The ERP Software that helps you take full control of your business. ERPNext is both powerful and easy to use.
Odoo - An all-integrated business app suite to unleash your growth potential.
Dolibarr - Dolibarr ERP CRM is an Open Source software package for small, medium or large companies, freelancers or foundations to manage business. It's a PHP project built by modules addition (invoice, proposal, contact, stock, order, hr, agenda. .
Insightly - Insightly is the easy, powerful and affordable online Customer Relationship & Project Management Software used by over 400,000 small businesses world wide
inoERP - inoERP is an open source php based enterprise management system.
Zoho CRM - Omnichannel CRM for Businesses of all sizes