Johnson Controls vs Siemens
Side-by-side comparison of AI visibility scores, market position, and capabilities
Cork commercial building technology (NYSE: JCI) ~$13B pro-forma revenue; new CEO Joakim Weidemanis (March 2025, ex-Danaher), York commercial HVAC + Metasys BMS + OpenBlue AI, residential HVAC sold to Bosch $8.1B.
About
Johnson Controls International plc is a Cork, Ireland-incorporated building technology company — publicly traded on the New York Stock Exchange (NYSE: JCI) as an S&P 500 Industrials component — providing smart building systems, HVAC equipment, fire detection and suppression, security systems, and building management automation software through approximately 100,000 employees serving commercial, industrial, and institutional buildings in 150 countries. Johnson Controls appointed Joakim Weidemanis as President and CEO effective March 12, 2025, succeeding George R. Oliver who retired after eight years leading the company's transformation from a diversified industrial conglomerate (including auto interiors, automotive batteries, and York HVAC) into a pure-play commercial building technology company. Weidemanis brings 13 years of Danaher experience — most recently as Executive Vice President of Diagnostics and China — applying Danaher Business System operational excellence disciplines to Johnson Controls' building technology platform. A defining 2024 strategic action was the $8.1 billion sale of Johnson Controls' Residential and Light Commercial HVAC business (including the York residential, Coleman, and Champion brands) to Bosch — focusing Johnson Controls entirely on commercial, industrial, and institutional building automation, HVAC, fire, and security. In fiscal year 2024 (ending September 2024), Johnson Controls reported revenue of approximately $22 billion (pre-divestiture), with the commercial and industrial building services generating approximately $12-13 billion in pro-forma revenue after the residential HVAC divestiture.
€75.9B revenue FY2024 (+3% comparable); Q3 FY2025 €19.4B (+5% comparable); 3-7% comparable growth expected FY2025; automation business recovering Q3; manufacturing automation leader
About
Siemens is a German technology and industrial conglomerate founded in 1847 by Werner von Siemens, one of the oldest and most broadly diversified technology companies in the world. Today the company's focus is concentrated in two high-growth segments: Digital Industries, which provides automation, industrial software, and manufacturing execution systems; and Smart Infrastructure, which delivers grid technology, building automation, and electrification solutions. Siemens' core technology platform, the Siemens Xcelerator open digital business ecosystem, connects hardware, software, and services into an integrated industrial AI and automation layer.\n\nSiemens' product and solutions portfolio spans factory automation (PLCs, drives, robots), simulation and digital twin software (through Siemens EDA and Siemens Opcenter), building management systems, power grid components, and electrification infrastructure. Its industrial software business — including the NX CAD/CAM suite, Teamcenter PLM, and MindSphere industrial IoT platform — serves aerospace, automotive, electronics, and energy companies managing the complexity of modern product development and manufacturing operations.\n\nSiemens generated €75.9B in revenue in FY2024, a 3% increase, and reported €19.4B in Q3 FY2025 revenue, up 5%. The company has positioned itself as a leader in the industrial AI and automation megatrend, investing heavily in AI-augmented manufacturing tools and smart grid technology needed to support the global energy transition. With a $100B+ market capitalization and deep relationships across global industry, Siemens is well positioned to capture the digitization and electrification capex cycle accelerating through the late 2020s.
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