Cornerstone Financial Holdings Limited is an investment company, which engages in creating a sizeable network of flat-panel displays in elevator lobbies, commercial buildings, and residential buildings to sell advertisement. It operates through the Advertising and Media Services; and Financial Services segments. The Advertising and Media Services segment focuses on film development, production, and distribution. The Financial Services segment includes securities dealings and brokerage business and margin financing business. The company was founded by Hong Gay Wong and Toi Yuk Ngan in April 2004 and is headquartered in Hong Kong.