A History of Johnson Controls

• Introduction
• Chapter 1: The Genesis of Innovation: Warren Johnson's Vision
• Chapter 2: Early Triumphs and Technological Breakthroughs (1885-1900)
• Chapter 3: Expanding Horizons: Diversification and Growth in the Early 20th Century
• Chapter 4: Navigating Through Wars and Depression (1914-1945)
• Chapter 5: Post-War Boom and the Rise of Modern HVAC
• Chapter 6: The 1960s: Automation and the Space Age
• Chapter 7: Energy Crises and New Opportunities (1970s)
• Chapter 8: Global Ambitions: International Expansion Takes Shape
• Chapter 9: Acquisitions and Strategic Partnerships (1980s)
• Chapter 10: Building a Sustainable Future: Environmental Initiatives
• Chapter 11: The Information Age: Integrating Technology into Building Management
• Chapter 12: Automotive Ventures: Seating and Interiors
• Chapter 13: A New Millennium: Adapting to Change
• Chapter 14: Focusing the Portfolio: Divestitures and Core Strengths
• Chapter 15: Smart Buildings and the Internet of Things
• Chapter 16: Leadership Transitions and Evolving Corporate Culture
• Chapter 17: Innovations in Energy Storage: The Battery Business
• Chapter 18: Strategic Separations: Adient and Power Solutions
• Chapter 19: Digital Transformation and Data-Driven Solutions
• Chapter 20: Global Reach and Local Impact: A Worldwide Presence
• Chapter 21: Sustainability at the Forefront: ESG Initiatives
• Chapter 22: Confronting Challenges: Resilience and Adaptation
• Chapter 23: The Future of Building Technology
• Chapter 24: Johnson Controls Today: A Leader in Smart, Healthy, and Sustainable Buildings
• Chapter 25: Legacy and Beyond: The Enduring Impact of an S&P 500 Company

In the annals of American enterprise, few companies can lay claim to a legacy as enduring and transformative as Johnson Controls. From its humble beginnings in the late 19th century to its current standing as a global leader in smart, healthy, and sustainable buildings, the trajectory of Johnson Controls is a compelling narrative of innovation, adaptation, and unwavering vision. This book, "A History of Johnson Controls: The Story of an S&P 500 Company," delves into the rich tapestry of this remarkable institution, exploring the pivotal moments, technological breakthroughs, and strategic decisions that have shaped its journey over more than 135 years.

At its core, the story of Johnson Controls is one of anticipating and responding to the evolving needs of the world. It began with the ingenuity of a single inventor, Warren Johnson, whose invention of the electric room thermostat laid the groundwork for an entirely new industry: automatic temperature control. From these foundational innovations, the company steadily expanded its horizons, diversifying into new markets and embracing emerging technologies. The pages that follow will trace this evolution, detailing how Johnson Controls navigated two World Wars, the Great Depression, energy crises, and numerous economic shifts, consistently emerging stronger and more relevant.

Being an S&P 500 company is more than just a financial designation; it is a testament to sustained performance, market leadership, and a profound impact on the global economy. Johnson Controls' presence on this prestigious index reflects not only its considerable financial achievements but also its critical role in shaping the built environment. From the heating and cooling systems that define our comfort to the sophisticated digital platforms that optimize building performance, the company’s innovations have touched countless lives and fundamentally altered how we interact with the spaces around us.

This book will take readers on a journey through the various eras of Johnson Controls, examining its strategic expansions into automotive seating and interiors, its pioneering efforts in energy storage with its battery business, and its eventual sharpened focus on its core strengths in building technologies. We will explore the critical role of acquisitions and strategic partnerships in its growth, as well as the bold divestitures that have streamlined its portfolio, including the separations of Adient and Power Solutions. These strategic maneuvers highlight a company constantly re-evaluating its direction and adapting to a dynamic global landscape.

Beyond the technological advancements and business strategies, "A History of Johnson Controls" also illuminates the human element—the countless individuals who have contributed their talent, dedication, and vision to the company's success. It examines the evolving corporate culture, the challenges confronted, and the resilience demonstrated in times of adversity. Ultimately, this book offers a comprehensive and insightful look into an S&P 500 company that has not only witnessed history but actively shaped it, leaving an indelible mark on the world of innovation, sustainability, and intelligent infrastructure.

As we stand at the precipice of a new era, defined by smart buildings, digital transformation, and an urgent imperative for sustainability, the story of Johnson Controls offers invaluable lessons. It is a testament to the power of persistent innovation, strategic foresight, and an unwavering commitment to creating a more comfortable, safe, and sustainable world. Join us as we uncover the remarkable history of a company that continues to define the future of building technology.

The late 19th century in America was a crucible of invention, a period when ingenuity, often born of necessity, rapidly transformed daily life. It was against this backdrop of burgeoning industrialization and scientific discovery that Warren S. Johnson, a professor at the State Normal School in Whitewater, Wisconsin, found himself grappling with a particularly persistent problem: the unpredictable and often uncomfortable temperatures in his classrooms. The school’s coal-fired furnace, while capable of generating heat, lacked any effective means of regulation, leading to a constant battle between sweltering heat and biting cold. This seemingly mundane predicament would spark an idea that not only solved Johnson’s immediate problem but also laid the foundation for an industry and a company that would span more than a century.

Born in Brandon, Vermont, in 1847, Warren Johnson was a man of diverse talents and an insatiable curiosity. His early career saw him as a teacher, but his true passion lay in invention and engineering. He possessed a keen observational mind, a knack for identifying inefficiencies, and the practical skills to devise solutions. The erratic heating at the State Normal School was more than just an inconvenience; it was a distraction to learning and an inefficient use of resources. The janitor, often overwhelmed, would open windows when classrooms became too hot, only to close them again when the chill became unbearable. This manual, reactive approach was far from ideal, and Johnson knew there had to be a better way.

Johnson’s initial concept was elegantly simple: a device that could automatically detect changes in room temperature and, in response, control the flow of heat. While the idea of automatic regulation wasn't entirely new in other fields, applying it effectively to building temperature control presented a unique set of challenges. He envisioned a system that would operate without constant human intervention, maintaining a comfortable and consistent environment. This was not merely about comfort; it was also about efficiency, conserving fuel that was often wasted through over-heating or inadequate heating.

His breakthrough came in 1883 with the invention of the electric room thermostat. This wasn’t just a thermometer; it was a thermostatic control system. Johnson’s device utilized a bimetallic strip, a common element in temperature-sensitive mechanisms. As the room temperature changed, the two different metals in the strip expanded or contracted at different rates, causing the strip to bend. This movement, however slight, would then complete or break an electrical circuit, sending a signal to a damper on the furnace. If the room became too warm, the circuit would signal the damper to close, reducing the airflow and thus the heat. Conversely, if the room cooled, the damper would open, increasing the heat.

The brilliance of Johnson's invention lay in its practicality and its reliance on readily available scientific principles. It was a self-regulating loop, a precursor to modern feedback control systems. This elegant solution to a pervasive problem quickly garnered attention beyond the confines of Whitewater. Imagine the relief of teachers and students no longer subjected to extreme temperature swings, and the satisfaction of school administrators seeing a more efficient use of their heating budget. The thermostat was more than a convenience; it was a testament to the power of applied science to improve everyday life.

Recognizing the immense potential of his invention, Warren Johnson wasted no time in securing a patent for his electric temperature control system. This critical step protected his intellectual property and provided the legal framework necessary to commercialize his innovation. The patent, issued in 1883, marked the official birth of a new technology and set the stage for the entrepreneurial journey that was about to unfold. However, securing a patent was one thing; turning an invention into a viable business was another entirely. Johnson, with his inventive mind, now had to don the hat of an entrepreneur.

He understood that his thermostat, while revolutionary, was just one component of a larger system. To effectively control building temperatures, he needed to develop the entire infrastructure—the dampers, the pneumatic tubing, the actuators, and the central control mechanisms. This comprehensive approach distinguished his work from mere novelty; he was building a complete solution. He envisioned not just selling thermostats, but installing entire temperature control systems in buildings. This foresight into a holistic solution would be a hallmark of the company he was soon to establish.

The initial success of Johnson's thermostat led to the founding of the Johnson Electric Service Company in 1885 in Milwaukee, Wisconsin. This small enterprise, born from a professor's desire to heat his classrooms more effectively, had grand ambitions. Johnson himself served as the company's first president, bringing his inventive spirit and technical expertise directly into the leadership role. The early days were undoubtedly challenging, as is often the case with pioneering ventures. There was a need to educate potential customers about the benefits of automatic temperature control, to demonstrate its reliability, and to build trust in a completely new technology.

Milwaukee, at the time, was a burgeoning industrial center, a city ripe with opportunities for innovation. Its growing economy and expanding infrastructure provided a fertile ground for a company like Johnson Electric Service. The initial focus was on public and commercial buildings—schools, offices, and factories—where consistent temperatures were not just about comfort but also about productivity and the preservation of goods. These were the environments where the tangible benefits of automatic temperature control could be most clearly demonstrated and appreciated.

The company's first major installations were significant milestones, proving the efficacy and reliability of Johnson's system on a larger scale. These early projects, while perhaps modest by today's standards, were crucial in establishing the company's reputation and building a portfolio of successful implementations. Each successful installation served as a powerful testimonial, attracting new clients and gradually expanding the company's reach. Word of mouth, combined with targeted demonstrations of the technology, became key drivers of early growth.

Warren Johnson, however, was not content to rest on his initial laurels. He was a relentless innovator, constantly seeking to improve his designs and expand the capabilities of his systems. He understood that technology was not static and that continuous development was essential to maintain a competitive edge. This commitment to ongoing research and development, embedded in the company's DNA from its very beginning, would prove to be a defining characteristic of Johnson Controls throughout its history. He surrounded himself with a team of skilled engineers and technicians who shared his vision and were dedicated to pushing the boundaries of what was possible in temperature control.

One of the key early innovations beyond the initial thermostat was the development of pneumatic control systems. While the electric thermostat was groundbreaking, Johnson recognized the advantages of using compressed air for operating dampers and valves, especially in larger and more complex buildings. Pneumatic systems offered robustness and reliability, and their ability to operate without direct electrical connections to every single actuator was a significant advantage in the early days of building automation. This strategic expansion into pneumatic controls showcased Johnson’s pragmatic approach to engineering and his commitment to offering the most effective solutions available.

The introduction of pneumatic controls demonstrated a crucial aspect of Johnson’s genius: he wasn't wedded to a single technology but rather to the problem he was trying to solve. Whether it was electricity or compressed air, the goal remained the same—to provide precise and automatic temperature regulation. This adaptability and willingness to embrace different technological approaches would serve the company well as it matured and the technological landscape evolved. It also highlighted a nascent understanding of integrated building systems, where various technologies worked in concert to achieve optimal performance.

The early success of the Johnson Electric Service Company was not merely a stroke of luck; it was the direct result of Warren Johnson's inventive brilliance, his entrepreneurial drive, and his unwavering commitment to solving a real-world problem with a truly innovative solution. He had taken a common annoyance—unpredictable indoor temperatures—and transformed it into an opportunity to create an entirely new market. His vision extended beyond a single device; he envisioned a future where buildings could intelligently manage their own environments, providing comfort, efficiency, and ultimately, a better quality of life for their occupants. This foundational period, marked by inventive fervor and a clear sense of purpose, firmly established the roots of what would become a global industrial giant. The stage was set for future chapters of growth, diversification, and continued innovation, all springing from the initial spark of Warren Johnson's genius.