A-1's Valued Partners
- British Petroleum Philippines
- Ford Motor Philippines
- Pfizer Inc.
- Cargill Philippines
- Hi-Eisai Pharmaceutical
- Unilever Foods
- Honda Alabang & Makati
- Nissan Motor Philippines
- Nestle Philippines
- Asia Cargo Container Line, Inc. (ACCLI)
- Airlift Asia
- Smart Communications
- Greenline Onyx
- Asian Terminals Inc.
- Solvay Pharmaceuticals
- JTI Philippines
- AFPSLAI
- LBP Services
- Meralco
- Philippine Electric Corporation (Philec)
- Colgate-Palmolive
- Concepcion Carrier Air Conditioning Co.
- Merial Philippines
- Wrigley Philippines Inc.
- Philip Morris Philippines Manufacturing Inc.
- PNOC
- Staffbuilders Asia
- San Jose Water District
- Maynilad Water Services, Inc.
- BJ Services Inc.
- Pilipinas Shell
- Chevron Philippines Inc.
- McKenzie Philippines
- VNS Distributors Inc.
- Bristol Myers (BMS)
- University of Perpetual Help – Rizal (UPHR)
- Johnson & Johnson Philippines
- International Starch & Chemical Co.
- Texas Instrument (Philippines), Inc.
- Hospira Philippines
- Air Liquide Philippines
- Clorox International Philippines, Inc.
- San Miguel Foods Inc.
- Cemex Philippines
- 3M Philippines
- B. Braun Philippines
- Interphase Manpower System
- HSBC Philippines
- Toyota Cubao and Marikina
- C&E Publishing
- Philippine National Police Academy (PNPA)
- On Semi Conductor Philippines Inc.
- Abiva Publishing Inc.
- Sentinel Integrated Inc.
- Dupont Far East Inc.
- Mead Johnson Philippines
- Harbor Star Shipping Lines Inc.
- Monde M.Y. San Inc.
- Hovid Philippines
- Canadian Helicopters Philippines Inc.
- Nido Petroleum Limited
- Carissa Apparel
- Abbott Philippines
- Novartis Philippines









