Mariano John Tan

United Laboratories, Inc. develops and manufactures prescription and consumer health products. Its products include Alaxan FR, Biogesic, Ceelin, Dolfenal 250mg, Eneryon and Myra e. The company was founded by Jose Y. Campos and Mariano K. Tan in 1945 and is headquartered in Mandaluyong, Philippines.

Greenfield Development Corp. is a Filipino company that builds communities in both urban and suburban areas that are designed to last for generations. The private company is based in Mandaluyong, Philippines. The company's goal is to create homes that can be passed down from one generation to the next.

Capitol Medical Center, Inc. operates as a multi-speciality medical center. It provides and conducts medical training and research, coupled with its acquisition of state-of-the-art medical technology. It offers pathology services, tumour detection, cardiac scan, bone scan, pulmonary department, physical therapy, and bone densitometry. The company was founded on March 19, 1970 and is headquartered in Quezon City, Philippines.

PT Medifarma Laboratories, Inc. is an Indonesian pharmaceutical company that specializes in manufacturing pharmaceutical products. The private company is based in Jakarta, Indonesia.