In a single year, millions of cars are manufactured worldwide. While the styles, parts and features may vary, every vehicle requires a wire harness. The harness connects the wiring throughout the vehicle, powering everything from power steering and headlights to in-dash displays and heated seats.

While studying for a master's degree in architecture at Delft University of Technology, Michiel Holthinrichs began to collect and repair vintage watches. He turned his passion into a business, founding Holthinrichs Watches in 2013.

Carlisle Brake and Friction is 101-year-old company that manufactures braking products for construction, aerospace, agriculture, military, racing, mining and highway uses.

Power Solutions International (PSI) of Wood Dale, IL, designs, engineers and manufactures engines for the industrial, construction, agricultural and on-road markets.

For nearly 30 years, Flocon Inc. has been manufacturing fluid applicators and dispensing systems in Illinois for applications in a wide variety of industries.

Fitzpatrick Manufacturing, a CNC machine shop and custom manufacturer founded in 1952, supplies parts to more than a dozen sectors, including aerospace, automotive, medical equipment and oil and gas.

Faced with the need to join aluminum to aluminum and aluminum to steel, automakers have been forced to find alternatives to the tried-and-true spot welding technology they had been using for decades to join all-steel assemblies. Flow drill screws are one such alternative.

India is one of the world's fastest-growing economies thanks, in part, to the automotive industry, including suppliers like Johnson Controls. This global conglomerate produces a wide range of components for cars.

With nearly a century of experience manufacturing trucks, it's no surprise that Kenworth is one of PACCAR's most successful arms. Kenworth, along with fellow PACCAR brand Peterbilt, achieved a record 30.7 percent of retail market share for Class 8 trucks in the U.S. and Canada in 2017, up from 28.5 percent in 2016.

Based in Furtwangen, Germany, Ketterer manufactures electromechanical drive systems. The company's products are used to adjust the height of desks and workstations and are also deployed widely in entry systems, warehouses and the machinery industry.