Hospitals, Pharmaceutical and Research Laboratories
- Glaxo-SmithKline Philippines, Inc.
- JEFCOR Laboratories, Inc.
- Labserv Incorporated
- Optimal Research Lab., Inc.
- REFAMED Research Laboratory Corporation (Blaine Marketing, Inc.)
- Stalder Laboratories, Inc.
- Agchem Manufacturing Corporation
- Cofipac Corporation (Nestle Corp.)
- East West Seed Company, Phils.
- Fuji Electric Philippines, Inc.
- Nalco Company
- New Food Coatings Phils., Inc.
- Senju Solder Philippines, Inc.
- Sunpower Philippines, Inc.
- TNC Philippines, Inc.
- Cavite State University
- Central Mindanao University
- Collegio Dela Sagrada Familia
- Laguna Bel-Air School
- Mariano Marcos Memorial State University
- Technological University of the Philippines
- University of the Philippines
- World Citi Colleges
- Department of Agriculture
- Department of Education
- Department of Environment and Natural Resources
- Dept. of Science and Technology
- National Power Corporation
- Philippine Rice Research Institute