Arthur Alvin A. Aguilar is a martial artist and Mixed Martial Arts promoter better known as "Alvin Aguilar".
 He was born on April 28, 1974 in Bacolod, Philippines.
 He is the president and founder of the The Universal Reality Combat Championship (URCC, 2002–present); He is also the founder and head coach of DEFTAC Ribeiro Jiu-jitsu Philippines (DEFTAC, 1996–present.)
 and now currently serving as the president of the Wrestling Association of the Philippines.
 He started training in martial arts at the age of 9, first in Karate, Arnis and Greco-Roman Wrestling.
 Having spent over 30 years of his life to the study of multiple martial arts forms including Sari-an, Brazilian Jiu-Jitsu, Yaw Yan, Pekiti, etc.
 He has developed his own unique fighting style specializing in grappling, knife and street fighting.
 He is also known for being the first home-grown Filipino Brazilian Jiu-jitsu Black belt.
AMA Fight Club (American Martial Arts) is a mixed martial arts training facility located in Whippany, New Jersey & Pompton Lakes, New Jersey, specialized in training Brazilian Jiu-Jitsu, Muay Thai Kickboxing, Mixed Martial Arts & Combat Cardio Kickboxing.
 A number of fighters who train at AMA have found success in a number of MMA promotions, including the Ultimate Fighting Championship (UFC), and the regional Ring of Combat.
Joe Antonacci (ring announcer) (born August 9, 1960, Ridgewood, New Jersey) is a noted boxing ring announcer and emcee famous for his televised boxing ring appearances in a tuxedo on ESPN's Friday Night Fights, NBC Sports Network, HBO, Showtime, and GoFightLive.TV.
 Nicknamed 'Generous Joe', he donates all of his ring earnings to assist injured and retired amateur and professional boxers in need, to overcome their disabilities incurred as a result of bouts in the ring, and to amateur boxing organizations.
 Antonacci also serves as a ring announcer for mixed martial arts fights.
Fight Nights Global (FNG), better known as, Fight Nights, is a Russian mixed martial arts organization and one of the leading promotions in Europe.
 To date, most events have been hosted in Moscow, Russia.
 They have also held events in Belarus, Slovakia, Georgia and they have planned events in Tajikistan.
The Machado Family—also known as the Machado Brothers—are a family of Brazilian jiu-jitsu practitioners, mixed martial artists and grapplers.
 They are the founders of RCJ Machado Brazilian Jiu-Jitsu and are cousins to members of the Gracie family.
 Their familial ties to the Gracies are through their mother's sister Layr, who was married to Carlos Gracie, making them first cousins to Carlos Gracie, Jr. and his siblings, and affinal cousins to the rest of the second generation of Gracie martial artists.
 Along with their Gracie cousins, the Machados are pioneers of Brazilian Jiu-Jitsu in the United States.
 They are according to age, Carlos, Roger, Rigan, Jean Jacques and John.
 The Machados have opened Brazilian jiu-jitsu schools throughout the United States.
ZenQuest Martial Arts Center, formerly called the Okinawan Karate School, is a martial arts school located in Lenox, Massachusetts.
 The oldest martial arts school in Berkshire County, it was founded in 1972 as a dojo for Uechi-ryu karate.
 The school since expanded to include other martial arts, and currently provides instruction in Shohei-ryu karate (a spin-off of Uechi-ryu), Brazilian jiu-jitsu, mixed martial arts, Muay Thai, boxing, wrestling, kobudo, and self-defense, and is the fastest growing martial arts community in Berkshire County.
 The school also contains a store which provides equipment, gear, and instructional media.
 It is affiliated with the Okinawan Karatedo Association, Demian Maia Jiu-Jitsu Association, and Team Sityodtong Boston, and is accredited by the North American Grappling Association.
 ZenQuest has received significant coverage by regional and local media in Berkshire County, including "The Berkshire Eagle", "Berkshires' Best Buys, Business, and Beyond", and Pittsfield Cable Television, for its regular youth tournaments and seminars with high-ranking officials from the school's parent organizations.
Mariusz Ryszard Linke (born July 31, 1969) is a Polish professional mixed martial artist and grappler who is most notable for being the first Polish born black belt in Brazilian jiu-jitsu, the highest ranking active Polish judoka and BJJ practitioner in both mixed martial arts and grappling, and one of the most decorated grapplers in Poland, he is also the first Polish grappler to travel to Brazil and receive training under a Gracie trained Brazilian jiu-jitsu black belt.
 Linke has notably competed in the European Championship, NAGA, Grapplers Quest, ADCC and the Pan American Games.
 Linke is currently in talks with top Polish promotion Konfrontacja Sztuk Walki to negotiate a 2 fight contract to close out his mixed martial arts career by the end of 2015, Linke has stated despite retiring from fighting he will still continue his grappling career and is rumored to be in the 2014 ADCC Polish Trials to enter the 2015 ADCC World Championship.
Cyrus Fees (born March 15, 1982) is a television and media personality based in The United States of America (USA).
 Cyrus Fees is the play-by-play commentator for Global Force Wrestling, EFC Worldwide (Africa), Art of War FC, and Brave Combat Federation.
 He currently serves as Ring announcer for Absolute Championship Berkut, EFC Worldwide (Africa), and several regional U.S. promotions.
 Additional media work includes television hosting work and news anchor duties.
Absolute Championship Berkut (ACB) is a Russian mixed martial arts, kickboxing and brazilian jiu-jitsu organization and one of the leading promotions in Europe.
 To date, most events have been hosted in Grozny, Russia.
 They have also held events in United States, Poland, Romania, Scotland, Georgia, Netherlands, Belgium, Tajikistan, Austria, France, Belarus, England, Turkey, Kazakhstan and they have planned events in Canada, Sweden, United Arabic Emirates and Brazil.
The American Kickboxing Academy (AKA) is a martial arts gym Based in San Jose, California.
 It is one of the pioneering schools of mixed martial arts (MMA).
 AKA headquarters is located in South San Jose.
 In 2014 AKA opened "AKA Thailand" Gym in Phuket Thailand.
 Prominent trainers include Brazilian Jiu-Jitsu master Leandro Vieira, Bob Cook, Derek Yuen, Javier Mendez, and Andy Fong.
 Within the facility, Muay Thai, Brazilian Jiu-jitsu, Wrestling and Boxing classes are taught.
 Additional programs include conditioning and circuit training with TRX Suspension and Combat Circuit.
 American Kickboxing Academy is one of the top professional MMA training camps.

Question: Cyrus Fees currently serves as Ring announcer for which Russian mixed martial arts, kickboxing and brazilian jiu-jitsu organization and one of the leading promotions in Europe?
Answer: Absolute Championship Berkut