As someone who lives nearby. Know that both JJP and Stern are both located inside one of the largest industrial parks in the world. Elk Grove Village is very aggressive to go after companies that build and manufacture. Giving them incentives to be located in Elk Grove. Yes we have 2 pinball companies but the park is also host to a bunch of distributors, Sega, Namco, Raw Thrills. ETC. its a coin op hub. All the talent, parts and distros are right there.

obviously many of the parts come from the surrounding area. I live in rockford the Screw capitol of the world an hour away. Someone in town makes the leg bolts and other hardware. Not sure which of the several compaines do it. But when Ive been to the factory the pallets say Rockford IL on em.