Allison Transmission Holdings Inc., headquartered in Indianapolis, Indiana, is a leading global designer and manufacturer of fully automatic transmissions and hybrid propulsion systems for commercial-duty vehicles. The company’s products are engineered to enhance vehicle performance, fuel efficiency and durability across a range of end markets, including medium- and heavy-duty trucks, transit buses, motorhomes, defense vehicles and specialty vehicles. By integrating advanced powertrain technologies, Allison Transmission helps fleet operators achieve lower operating costs and reduced emissions without sacrificing reliability or uptime.
Core offerings include a broad family of six-speed, seven-speed and two-mode hybrid transmissions, complemented by electronic controls, telematics solutions and aftermarket support services. Allison’s transmission platforms feature patented torque converter technology and adaptive electronic controls that optimize shift quality and responsiveness under varying load conditions. The company’s global service network provides maintenance, parts distribution and technical support to ensure vehicles equipped with Allison transmissions remain in continuous operation.
Founded in 1915 by automotive pioneer James A. Allison, the company originally supplied components to the early automotive and aviation industries before developing its first automatic transmission in the early 20th century. Over subsequent decades, Allison Transmission expanded its engineering capabilities and production footprint, becoming part of General Motors in 1929 and operating as a key powertrain business unit until its initial public offering in 2007. Since then, the company has pursued growth through new product introductions, strategic partnerships and investments in electric and hybrid technologies.
Today, under the leadership of President and Chief Executive Officer David Graziosi, Allison Transmission maintains manufacturing facilities in North America, Europe, India, China, Brazil and Mexico. The company’s global sales and service network spans more than 100 countries, supported by regional technical centers and a network of factory-authorized distributors. Through ongoing research and development efforts, Allison continues to advance powertrain innovation to serve evolving customer demands in a diverse set of transportation markets.
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