All answers as to why SIPD selected Acumatica are on Acumatica’s website. “Acumatica is the only secure, cloud- and browser-based small and mid-size business ERP solution that adapts to your business.”
Mainly, Acumatica is configurable, extensible and easily integrates with other systems. Its deployment options (on-premise, hosted on a server or in a cloud computing, SaaS) are flexible and you can switch easily between them.
Perfect to run your business from anywhere, using any device, Acumatica has the same price whether you have ten users or a hundred thousand users, no hidden fees. Also, Acumatica gives you the choice of if and when to install an upgrade.