Caliburn Capital Partners LLP | 705 followers on LinkedIn. Caliburn Capital Partners LLP is an institutional alternative asset management firm, majority owned by its principals with the financial backing of Mizuho International, part of the Investment Banking arm of Japan’s Mizuho Financial Group - one of the world’s largest financial institutions. Our five founding partners bring over 125 years of entrepreneurial and investment success to the establishment of a structure of real institutional quality. The partners’ direct hedge fund experience not only provides insights into portfolio management, but also results in a culture where investment content and performance are paramount.