Companies catalogue
- M Lhuiller Pawnshop & Jewelry, Vigan City
- M S Forges Furniture, San Vicente
- M. Lhuillier - Bangued 2, Bangued
- M. Lhuillier - Cabugao, Cabugao
- M. Lhuillier - Imelda, Narvacan
- M.S.T Jewelry Store, Candon
- MAC Dale Store, Bangued
- MFT Electronic Shop, Vigan City
- MOTORSAVE - CANDON, Candon
- MOTORSTAR, Zamboanga
- MS T Pawnshop, Santo Domingo
- Magic Mix Bake Shop, Vigan City
- Magic Switch Electronics Repair Shop, Bantay
- Magnacom Loading Station, Bangued
- Magsaysay Construction and Supply, Sinait
- Malayan Insurance, Vigan City
- Manang Biday Laundry Services, Santa Catalina
- Mancel Computer and Trading Center, Vigan City
- Mang Inasal - Heritage Vigan, Vigan City
- Mang Inasal - JTC Mall Shopping, Bantay
- Marison's RTW Footwear and General Merchandise, Bangued
- Mariwasa Siam Ceramics Inc. - Yl Home Plus Yakal, Bantay
- Mart One Vigan, Vigan City
- Master PC Marketing, Bangued
- Maverick Harry's Loomweaving, Vigan City
- Max Global International Marketing Incorporated, Subic Bay Freeport Zone
- Mazzy's Foods, Bantay
- Mc Lloyds Print Services, Vigan City
- McBloyds Prints & Ads, Bantay
- MediLink Network, Inc., Bangued
- Medicard Philippines Incorporated, Vigan City
- Medicard Philippines Incorporated, Bantay
- Mel Shoe Shine, Vigan City
- Mel Sol's Inn and Resort, Bantay
- MelSol Hotel, Vigan City
- Menang Sari Sari Store, Vigan City
- Merced Store, Bangued
- Mercury Drug, Vigan City
- Mercury Drug, Vigan City
- Mercury Drug - Pure Gold, Vigan
- Mercury Drug Store, Candon
- Mercury Drug Store - Abra Bangued Taft Branch, Bangued
- Mercury Drug Store - Bangued Partelo Branch, Bangued
- Mercury Drug Store - Candon City Gray, Candon
- Mercury Drug Store - Ilocos Sur Vigan Alcantara Branch, Vigan City
- Meridian International Exporters, Limay
- Metro Vigan Fiesta Garden Hotel, Bantay
- Metro Vigan Regency Hotel, Vigan City
- Metro Vigan Water District, Vigan City
- Metrobank, Vigan City
- Metrobank, Vigan City
- Metrobank - Alcantara St, Vigan City
- Metrobank ATM, VIGAN(CITY/CAPITAL)
- Metrobank ATM, VIGAN(CITY/CAPITAL)
- Michel J. Lhuillier Financial Services Pawnshops Incorporated, Vigan City
- Mike's Deparment Store, Vigan City
- Mila's Textile, Vigan City
- Mila's Vegetable Store, Vigan City
- Millionic Hometel, Santa Catalina
- Mims Radio and T.V Repair, Vigan City
- Mina's Electronics, Bangued
- Mira Hills Restaurant, Bantay
- Mira Hills Slaughter House, Bantay
- Mix Dried Fish, Vigan City
- Mj Chan's Pawnshop, Vigan City
- Molcim Market, Vigan City
- Monacor, Incorporated, Candon
- Monte Leah Beach Resort, Narvacan
- Morales Video Production, Vigan City
- More Than Cakes, Inc., Vigan City
- MotorTrade Sta. Maria, Santa Maria
- Motortrade - Cabugao, Cabugao
- Motortrade Honda 3S Shop Bangued, Quezon City
- Motortrade Multi Brand - Candon, Candon
- Mr. Arn Diman Store, Vigan City
- Mt. Samat Ferry Express, Orion
- Muebles Vigan, Vigan City
- Myphone Store, Vigan City