- Anchorland Holdings, Inc.
- Araneta Center Development Corp.
- Araneta Group of Companies
- Ayala Triangle North of Manila
- Bay Bridge Services (Far East) Ltd.
- Bobcock Hitachi
- Cambridge Communication Systems
- Cash&Carry Mall
- Central Bank of the Philippines
- Crewtech Ship Management Philippines, Inc.
- Department of Public Works & Highways Foundation Specialist
- Dreamwork Construction, Inc.
- FF Cruz & Company Inc.
- First Pacific Realty & Development Corp.
- Greenstone Resources
- HCM Construction
- Hibiscus Trading & Construction
- IM Construction Corp.
- IPM Construction
- JG Summit Petrochemicals Corp.
- JH Pajara, RU Aquino, Prismodial & RCDG Construction Consortium
- Makati Development Corp.
- Manila Towers Development Corp.
- Megaworld Corp.
- Meralco Industrial Engineering Services Corp. (Miescor)
- Monolith Construction
- MQ Holdings
- OceanaGold Philippines, Inc.
- Ortigas & Co., Ltd. Partnership
- R.A. Moya Construction
- Robinsos Land Corp.
- Schweitzer-Mauduit RTL Philippines, Inc.
- SM Prime Holdings, Inc.
- Sta. Clara International Corp.
- Allied Gold Ltd., Australia
- Baybridge Communication Systems, Hong Kong
- Cambridge Communication Systems, Inc. USA
- FR Construction, Guam
- GR Engineering Services, Australia
- Kinetics Technology Inc., USA
- Lycopodium Minerals Pty Ltd., Australia
- Mannesman Demag, Singapore and China
- Mitsubishi Heavy Industries Ltd., Japan
- Nippon Air Fin Corp., Japan
- Nippon Kaji Kyokai (NKK), Japan
- Outotec GmbH, Germany
- Outotec Pty. Ltd., Australia
- RMC Ravena, Italy
- Sedgman Metals, Australia
- Technip, USA
- WesTech Engineering Inc., USA