OOH Holdings Ltd. is an investment holding company. The firm engages in the provision of out-of-home advertising spaces and services. It operates through the following segments: Transportation, Healthcare, Digital Media, Logistic Advertising, Digital Event Management and Food and Beverage Businesses. The Transportation Business segment engages in the provision of advertising display services over the transportation media platforms. The Healthcare Business segment engages in the provision of advertising display services over the healthcare media platform. The Digital Media Business segment engages in the provision of advertising display services over the digital and online media platform. The Logistic Advertising Business segment engages in the provision of advertising display services over the self-pickup lockers platform. The Digital Event Management Business segment engages in the provision of esports event management services. The Food and Beverage Business segment engages in the provision of the Mizimamei branded food and beverage products in Hong Kong. The company was founded by Wai Chu Chau and Antonio Marcus da Silva on June 28, 2016 and is headquartered in Hong Kong.