The following are legitimate Yaw-Yan Fervilleon gyms affiliated with FERVILLEON INTERNATIONAL FEDERATION and are recognized as Certified Yaw-Yan Fervilleon Training Centers holding the highest standards as set forth by Grandmaster Napoleon A. Fernandez. Each of these gyms are run and operated by qualified Yaw-Yan instructors who were appointed by Grandmaster Nap as Propagation Directors:
- FERVILLEON TORNADO – International & USA Headquarters – Rockville, Maryland U.S.A.
- FERVILLEON PASAY – National Headquarters – Pasay City, Philippines
- FERVILLEON MATADOR – Das Mariñas, Cavite, Philippines
- FERVILLEON ALAKDAN – Leyte, Philippines
- FERVILLEON SOMA – Mandaue, Philippines
- FERVILLEON MUSANG – Mactan, Philippines
- FERVILLEON ALASAN – Las Pinas, Philippines
- FERVILLEON BLACK FALCON – San Pablo, Laguna, Philippines
- FERVILLEON BOEDCA – Taguig City, Philippines
- FERVILLEON KAMANDAG – Antique, Philippines
- FERVILLEON ADARNA – Baden-Wurtemberg, Germany
- FERVILLEON MATAYOG – Paranaque, Philippines
- FERVILLEON MALANDAG – Sarangani Province, Philippines
- FERVILLEON TARLAC – Tarlac, Philippines
- FERVILLEON LOBOS – Caloocan City, Philippines
