ERPNext an extremely easy to use, powerful open sourced application is published by Frappe Technologies Pvt Ltd. You can read more about it at https://erpnext.org. They also provide their own services and support independently of ours.
ERPNext is one of the cheapest, most easily implemented software of this type today. It can easily be integrated into your existing processes with minimal disruption to your business.
ERPNext is highly extensible. We also provide customization option for your industry and build add ons for applications custom to your domain.