Plex Systems
 | |
| Industry | Software |
|---|---|
| Founded | 1995 |
| Headquarters | , |
Area served | Americas, EMEA, Asia-Pacific |
| Products | Enterprise software, including: ERP, MES, QMS, SCMS, CRM |
| Website | www |
Plex Systems, Inc. is a U.S.-based software firm located in Troy, Michigan. It specializes in developing and selling the Plex Manufacturing Cloud, a cloud-hosted ERP platform designed specifically for manufacturing enterprises.
In 2021, Rockwell Automation acquired Plex Systems in a transaction valued at $2.2 billion.
History
Established in 1995 by Robert Beatty under the name Plexus Systems LLC, the company began as an internal IT initiative at MSP Industries Corporation. Initially focused on client/server manufacturing software solutions, it introduced its SaaS product, Plexus Online, in 2001.
A majority interest was purchased by private equity firm Apax Partners in 2006. The organization adopted the name Plex Systems in 2009 and rebranded its primary software as Plex Online. In 2012, ownership transferred to Francisco Partners from Apax Partners and other investors. That year also saw Accel Partners invest $30 million, followed by a $50 million funding round led by T. Rowe Price in 2014 aimed at advancing product innovation and expanding sales efforts.
Plex has earned recognition for its impact within the manufacturing ERP sector. The Aberdeen Group named it the top-performing ERP provider in 2009, uniquely placing it entirely within the “Champion” tier ahead of competitors such as SAP.
Though historically private with limited financial transparency, Plex reported a 30.6% revenue growth in Q1 2012 and maintained consistent recurring revenue increases over 19 straight quarters.
As the pioneer full SaaS ERP vendor catering exclusively to manufacturers, Plex delivered extensive capabilities that larger ERP companies had yet to offer through cloud platforms at that time. This model has supported its competitive positioning and facilitated its presence across markets in the Americas, EMEA, and Asia-Pacific regions.
Product
The Plex Manufacturing Cloud is a cloud-native ERP SaaS solution that oversees manufacturing workflows and supports functions including production control, inventory management, shipping logistics, supply chain operations, quality assurance, finance, sales, and human resources. It merges conventional ERP features such as accounting, procurement, and workforce management into a unified platform.
Designed for sectors requiring stringent traceability and quality controls—such as automotive, aerospace, food and beverage, and life sciences—the system provides real-time visibility into production accessible via any web browser globally. This capability improves operational effectiveness and facilitates informed decision-making by managers and engineers alike.
Plex’s offering integrates ERP with modules encompassing:
- Enterprise resource planning (ERP)
- Manufacturing execution system (MES) or manufacturing operations management (MOM)
- Quality management systems (QMS), enabling compliance with standards including ISO 9000, ISO 14000, QS-9000, TS-16949, and AS-9100
- Customer relationship management (CRM)
- Supply chain management software (SCMS)
This all-encompassing suite enhances manufacturing efficiency while supporting regulatory adherence across international operations.
References
- Companies founded in Michigan in 1995
- American enterprises founded in 1995
- Providers of cloud computing services
- Organizations headquartered in Troy, Michigan
- Enterprise resource planning software firms
- Manufacturing and production software providers
- Michigan-based software corporations
- Software firms established in 1995
- Software companies operating in the United States
- Companies owned by Apax Partners
- American companies established in 1995
- Companies of the United States by year of establishment