BCG may refer to: Astronomy. Blue compact galaxy, a type of galaxy undergoing an exceptionally high rate of star formation. Brightest cluster galaxy, the brightest in a cluster of galaxies. Medicine and biochemistry. BCG vaccine (Bacillus Calmette–Guérin), for tuberculosis. Ballistocardiography, measuring heart forces. Bromocresol green, a dye and pH indicator. Companies. Beijing Capital Group, a Chinese state-owned real estate company. Boston Consulting Group, a global management consulting firm.
https://en.wikipedia.org/wiki/BCG