Operating across Indonesia, PT Onix Capital Tbk and its affiliated companies... Operating across Indonesia, PT Onix Capital Tbk and its affiliated companies offer a range of professional services, including business consulting, management, and administrative support. The firm, which was initially known as PT JJ NAB Capital Tbk, officially adopted its current name, PT Onix Capital Tbk, in January 2011. Established in 1989, its headquarters are located in Jakarta, Indonesia.