Plex Systems, Inc. is a software company based in Troy, Michigan. They develop and market the Plex Manufacturing Cloud, a software as a service or cloud computing ERP for manufacturing. “Cloud” simply means that your software, data, and related infrastructure are hosted remotely via the Internet. SaaS cloud manufacturing ERP lowers costs while scaling seamlessly with your business. You pay a vendor to deal with your IT headaches, including support, security, upgrade, and maintenance. You only pay for what you need, and you can expand or change cloud services on the fly—with no capital outlay.