[4] The company's product lineup includes electrical cables, meter and auto instruments, gas equipment, air-conditioning, and solar-powered systems.

As a first tier supplier, Yazaki sells chiefly to auto manufacturers, and, to a lesser extent, electric power, gas, and general construction companies.

Starting as a small Japanese family business selling wiring harnesses for automobiles in 1941, Yazaki Group in 2011 employs more than 192,000 people worldwide, with about 90% of them (171,000) outside Japan.

The main external reason was the general trend of Japanese automotive companies to move production abroad to avoid trade sanctions in this period.

[9] On January 30, 2012, the US Justice Department announced after two years of investigation that it had discovered part of a massive price fixing scheme in which Denso and Yazaki played a significant role.