Plex Systems vs L3Harris
Side-by-side comparison of AI visibility scores, market position, and capabilities
Rockwell Automation's $2.2B-acquired manufacturing ERP/MES cloud; production floor to front-office integration for automotive and industrial manufacturers with real-time quality tracking.
About
Plex Systems is a cloud-based manufacturing ERP (Enterprise Resource Planning) and manufacturing execution system (MES) platform designed specifically for discrete and process manufacturers — providing production management, quality control, supply chain visibility, inventory management, and shop floor operations tracking in a single cloud platform. Founded in 1995 and headquartered in Troy, Michigan, Plex was acquired by Rockwell Automation in 2021 for $2.2 billion, becoming the software cornerstone of Rockwell's "The Connected Enterprise" smart manufacturing strategy.\n\nPlex's manufacturing cloud platform connects the production floor to the front office — tracking work orders, machine performance, quality inspections, lot traceability, and labor hours in real time. The MES capabilities provide production supervisors with live visibility into each workstation's throughput, scrap rates, and downtime, while the ERP layer handles procurement, inventory, shipping, and financial integration. The platform is used heavily in automotive supply chain manufacturing, food and beverage processing, and industrial manufacturing.\n\nIn 2025, Plex operates within Rockwell Automation (NYSE: ROK) as part of the Software and Control segment, integrating with Rockwell's industrial automation hardware (PLCs, drives, HMIs) and Factorytalk analytics platform. The manufacturing ERP market competes with SAP S/4HANA (manufacturing modules), Oracle Manufacturing Cloud, Infor CloudSuite Industrial, and specialized MES vendors. Plex's 2025 strategy emphasizes its integration with Rockwell's Logix control systems for closed-loop quality management, expanding in the food and beverage vertical, and growing its analytics capabilities for OEE (Overall Equipment Effectiveness) optimization.
Melbourne FL defense electronics (NYSE: LHX) $21.3B FY2024 revenue (+8%); tactical radios, ISR, electronic warfare, JADC2 networks, Falcon radio family competing with Raytheon and Northrop Grumman.
About
L3Harris Technologies, Inc. is a Melbourne, Florida-based defense electronics and technology company — publicly traded on the New York Stock Exchange (NYSE: LHX) as an S&P 500 Industrials component — providing advanced defense electronics, intelligence, surveillance and reconnaissance (ISR) systems, communication systems, and aviation products for US and allied defense forces through approximately 47,000 employees across four segments: Integrated Mission Systems (ISR aircraft modifications, electro-optical/infrared systems, maritime patrol aircraft), Space & Airborne Systems (military satellite communications, electronic warfare, precision weapons guidance), Communication Systems (tactical radio communications, night vision devices, public safety communications), and Aerojet Rocketdyne (integrated into L3Harris via investment, pending completion). L3Harris Technologies was formed in June 2019 through the merger of L3 Technologies and Harris Corporation — combining Harris's radio communication and space systems expertise with L3's ISR sensors, aircraft modification, and training systems capabilities to create the sixth-largest US defense contractor by revenue. In fiscal year 2024, L3Harris reported revenues of $21.3 billion (+8% year-over-year), with strong growth driven by JADC2 (Joint All-Domain Command and Control) radio and network programs, F-35 avionics subsystems production, and international NATO ally military communication equipment demand. CEO Christopher Kubasik has focused on margin improvement and portfolio optimization — divesting non-core businesses (commercial aviation training — sold Pilot Training business, Link Simulation & Training to CAE) while investing R&D in the electronic warfare (EW) and space domain awareness capabilities where L3Harris holds differentiated technology advantages.
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