Angelo Koo is a fifth-generation member of the illustrious Koo Family, one of Taiwan’s oldest and most influential business dynasties, whose fortune dates back to the 19th century and has since diversified into banking, cement, and petrochemicals. Angelo is the son of the late Jeffrey Koo Sr., who founded the financial branch of the family that controls CTBC Financial Holding, and whose siblings, Andre and Jeffrey Jr., are also billionaires.

His education focused intensely on finance and investment banking: he earned his undergraduate degree from Northwestern University and secured an MBA from the Wharton School of the University of Pennsylvania, one of the world's most prestigious business schools. This rigorous training in Western capital markets prepared him to manage and expand the family's aggressive investment portfolio, positioning him as the strategic mind behind the development and internationalization of KGI Financial Holding.

Angelo Koo’s career has been spent in the executive core of his family’s financial conglomerate. He joined the organization and quickly demonstrated his strategic vision. In 1996, he became President of KGI Securities (Taiwan), and by 1997, he established KGI Securities (Hong Kong), rapidly transforming the securities firm. Within eight years (1996–2004), under his leadership, KGI Securities' market capitalization grew an incredible sevenfold and its asset size ballooned over 20 times.

His ascent culminated in major leadership roles at China Development Financial Holding (CDFH)—later renamed KGI Financial Holding—and the China Development Industrial Bank. Serving as President and CEO, Koo successfully navigated the financial holding's transformation from a company primarily focused on domestic venture capital into a powerful regional leader in direct investment, specializing in growth capital and buyout financing across Asia. This aggressive restructuring and internationalization cemented his reputation as a formidable investment banker and a key steward of the multi-generational Koo wealth.

Angelo Koo’s philanthropy is structured through the CDF Foundation (China Development Financial Foundation), which focuses on leveraging the family's massive capital for social good, often emphasizing financial literacy and community development in Taiwan.

His giving reflects the corporate values of financial responsibility and investment in human capital. The Foundation supports educational programs aimed at empowering youth and communities. His leadership role involves directing capital toward initiatives that improve the financial well-being and economic literacy of Taiwanese citizens, thereby combining his corporate mandate with a civic commitment to national development.

Angelo Koo embodies the impeccable, refined style of an East Asian investment banking patriarch. His wardrobe consists of the highest quality, tailored dark suits and classic power accessories, suitable for boardrooms in Taipei, Hong Kong, and New York. His presentation is one of disciplined elegance, reflecting the seriousness and stability of the multi-billion dollar financial institutions he commands.

His lifestyle is centered on the exclusive social and business circles of Taipei's financial elite. Like his brother, his wealth is secured by a long-term, stable financial empire. His personal travel and leisure are private, focused on managing his interests across the pan-Asian financial sector. His luxury is the power to guide massive capital allocation and influence regional market dynamics, all while maintaining the dignity and influence of his dynastic family name.