Companies catalogue
- ABE Fishing Supply, Vigan City
- APB Gas Center, Vigan City
- Abucay Purified Water Company, Abucay
- Ambros Ilocos Cornik, Candon
- AmerLyn Trading, Vigan City
- Antigua de Madera - Vigan Showroom, Vigan City
- Aquabest - Bulacan, Malolos, Mabolo, Malolos
- Aquino Store III, Bangued
- Arlie's Aquamarine Products, City of Balanga
- Asialink Finance Corporation - Vigan City, Ilocos Sur, Vigan City
- Asianlife and General Assurance Corporation, Bantay
- Asuncion's Pawnshop, Vigan City
- Attorney Viscara Notary Public, Vigan City
- Atty. Ferdinand T. Rafanan, Vigan City
- Atty. Jesse I. Tagatac, Bantay
- Auring Religious Gift Shop, Vigan City
- Avelina's Store, Vigan City
- Ayen's Food Products, Vigan City