Companies catalogue
- O & B Industrial Rewind, Pulilan
- O Shopping, Taguig
- ODS Store, Baguio
- OFW Hotjobs, San Juan
- OJ Wines and Spirits Store, Santa Maria
- OK's PETRON STN, Doña Remedios Trinidad
- OMTPI, Santa Rosa
- ONE PINOY, Pasig
- OS Boy Balloon Party Need, Los Banos
- OSHIMA TECH, Guiguinto
- OWNDAYS Solenad3, Santa Rosa
- OXYGEN, Bacoor
- Obet Auto Electrical Shop, Guiguinto
- Obet Auto Electrical Shop, Bulacan
- Obet Special Pork Chicharon, Santa Maria City
- Ocaner Industrial and Machine Supply, Marikina
- Occasions Gift Shop, Calamba
- Octagon, Valenzuela
- Octo Lumber Store, Guiguinto
- Odgie's, Bustas
- Odieliz, Guiguinto
- Odieliz, Plaridel
- Odieliz Party Needs, Guiguinto
- Odielyz Party Needs, Plaridel
- Odyssey - San Pablo Mall, San Pablo City
- Office Needs Express, Pasig
- Office Warehouse Inc, Mandaluyong
- Office Warehouse Inc, Pasig
- Office Warehouse Inc, Taguig
- Office Warehouse Inc, Makati
- Office Warehouse Inc, Pasig
- Office Works, Pasig City
- Office of Student Affairs, Los Baños
- Office of the City Engineering, Malolos
- Office of the General Manager - East to West Seed Company, San Rafael
- Office of the Market Operations Service - Energy Regulatory Commision, Pasig
- Office of the Municipal Tourism, Los Baños
- Office of the Vice-President for Academic Affairs - Saint Louis University, Baguio
- Officelux Interior, Mandaluyong
- Officemate Publications, Malolos
- Oh Cake Sarap Bakeshop, Bulacan
- Ohana Private Resort, Pandi
- Ohya Beauty Salon, Bustos
- Oligar Trading, Santa Maria
- Oliver Private Pool, Calamba
- Ollie, Baliuag
- Ollinati Catering, Pandi
- Ollyn Variety Store, Marikina
- Omi Marketing, Baguio
- Omico Mining Incorporated, Pasig
- Omicron Construction, Guagua
- Omicron Construction, Angeles
- Omni Med Hub Corporation, Pasig
- Omnicraft, Malolos
- Omron, Mandaluyong
- Onaled Enterprise, Pulilan
- Onchings Radiator Shop, Pulilan
- Oncology Pharmacy - The Medical City, Pasig City
- Ondvil Hardware, San Rafael
- Ondvil Hardware and Construction Supply, San Rafael
- One Pacific T&T Property Management Incorporated, San Juan
- One Stop Lpg Shop, Guiguinto
- One-stop Shop Ballons 2 Remember, Pulilan
- Oneland sportswear Manufacturing, Quezon City
- Onemi Trading and Onemi Best Buddy, Victoria
- Oning Industrial And Electronics, Calumpit
- Onings Electrical Service, Calumpit
- Online Keno Lottery, Baguio
- Open Heaven, Baguio
- Opet & Marita, Plaridel
- Opo Office Supplies, Pateros
- Optic Design, Quezon City
- Optical Clinic, Pasig
- Optical Works, Muntinlupa
- Optical Works, Bacoor
- Optimate Industrial Corporation, Quezon City
- Optimum Security Servives Inc, Quezon City
- Optimum Transsource, Inc., Baguio
- Optimus Skills Security Training Institute Inc., San Juan
- Orantes Catering, Malolos
- Orbit Trade Links Enterprise, Malolos
- Order Na - Native Delicacies, San Rafael
- Orient - The Original Buko Pie Bakeshop, Los Baños
- Orient Pearl Mining Corporation, Pasig
- Oriental Assurance Corporation Baliuag Branch, Baliuag
- Oriental Pacific Construction, Plaridel
- Orif Drugstore & Medical Supply, Quezon City
- Orocan, Baguio
- Orogem Jewellers, San Juan
- Orquillas Law Office, Malolos
- Oscar Caluag Hardware and Construction Supply, Malolos
- Osmed Enterprise, Pasig
- Otc Precision System Automation, Calamba
- Otek Square, Baguio
- Outdoor Kinetix, Baguio
- Outlast, Valenzuela
- Owtel, Mandaluyong
- Oxygen, Taguig
- Oxygen, Dasmariñas
- Ozone Purified Water Station, Baliuag