Legendary American research institution under AT&T that pioneered numerous technologies including Unix, C programming language, transistors, and radio astronomy, employing over 3000 PhDs at its peak.
"Bell Labs was American innovation personified. Nothing like it has ever existed. At one point, more than 3000 of the 25000 employees were PhDs. Some of their quirky inventions include Unix, the C language, transitions, radio astronomy, and the discovery of cosmic background radiation."