Michalis "Iron Mike" Zambidis is a professional Greek kickboxer and martial artist. He is an 18-time World Champion, including former World version W5, SUPERKOMBAT and in a series of K-1 Tournaments and Grand Prix Champion. He mostly competed in the K-1 MAX where he scored mostly knockouts.
Zabit Samedov is an Azerbaijani kickboxer and muay thai fighter. Samedov has won multiple titles, most notably the K-1 World Grand Prix 2009 in Łódź tournament championship. He was also a competitor in the K-1 World Grand Prix 2012 final 8, and is a former It's Showtime 95MAX World Championship challenger.
Melvin Manhoef is a retired Surinamese-born Dutch mixed martial artist and kickboxer. In kickboxing, he is a former It's Showtime Middleweight Champion, and in MMA he was the Cage Rage Light Heavyweight Champion. In mixed martial arts, he competed in Bellator's Light heavyweight and Middleweight division and has also formerly competed for Strikeforce, DREAM, RINGS, It's Showtime, K-1, ONE FC, and KSW. 29 of his 32 wins have come via knockout, the highest percentage of any MMA fighter with at least 15 wins.
Albert “The Hurricane” Kraus is a Dutch kickboxer. He was the first K-1 World MAX Tournament Champion in 2002 and also the first SUPERKOMBAT Middleweight Champion. Kraus has also held four separate world titles in kickboxing and Muay Thai. He is currently fighting out of Super Pro Gym.
Artur Kyshenko is a Ukrainian middleweight kickboxer, fighting out of Kyshenko Gym. He is the 2015 Kunlun Fight 80 kg Tournament World Champion and K-1 World MAX 2008 Finalist.
Hesdy Gerges is a Dutch kickboxer and mixed martial artist. He held the It's Showtime World Heavyweight title between 2010 and 2012. Gerges has competed in the K-1, It's Showtime, SUPERKOMBAT and Glory promotions.
Brice Guidon, also known as "Nectar", is a French Muay Thai kickboxer. He is the W.P.M.F. European Heavyweight and World Super Heavyweight Muaythai Champion, and the 2011 United Glory World Series runner-up. He has competed in the GLORY, K-1, It's Showtime and SUPERKOMBAT promotions.
Dmitry 'Black Valet' Valent is a Belarusian Muay Thai middleweight/super middleweight kickboxer. He is the former WKN Middleweight Oriental rules and Muay thai champion, former WMC Light Heavyweight champion, two time WMC I-1 World Muaythai Grand Slam champion and two time Kunlun Fight 80kg tournament runner-up.
Chris "The African Warrior" Ngimbi is a Congolese-Dutch Muay Thai kickboxer fighting out of Ngimbi Sports Academy in Pelt, Belgium. He is the two times It's Showtime 70MAX world champion fighting primarily within the It's Showtime and the K-1 Global Holding organizations. He also held the SUPERKOMBAT Middleweight Championship in 2016.
Lorenzo Javier Jorge, also known as Jorge Loren, is a retired Spanish professional kickboxer and K-1 veteran. Loren was the Super Cruiserweight Champion of the Superkombat Fighting Championship. He is also the 2014 Superkombat World Grand Prix tournament champion and fought for the It's Showtime 95MAX world title, losing to Danyo Ilunga by decision after 5 rounds. He has also fought in Enfusion.
Bogdan Cristian Stoica is a Romanian professional kickboxer and boxer, and former wushu practitioner. Stoica is also one-time SUPERKOMBAT Cruiserweight Champion, one-time Enfusion Light Heavyweight and two-time wushu national champion. He was also ranked as a top-10 middleweight in the world for several years by LiverKick.com, CombatPress.com and GloryKickboxing.com. He has competed for GLORY, ONE Championship, SUPERKOMBAT Fighting Championship, Enfusion, Wu Lin Feng and Glory of Heroes.
Andrei Cătălin Stoica is a Romanian kickboxer competing in the Light Heavyweight division. He was the first to hold the SUPERKOMBAT Super Cruiserweight Championship and held the SUPERKOMBAT record for most consecutive title defenses.
Enrico Gogokhiia is a professional Georgian-born Ukrainian Middleweight kickboxer. As of 26 May 2016, he is ranked the #3 lightweight in the world by LiverKick.com. In 2016 he moved to USA and switched to professional boxing.
Sergiano Herbert Cairo, better known as Redouan Cairo is a Surinamese-Dutch kickboxer fighting in the Superkombat Fighting Championship where he is the 2013 Superkombat World Grand Prix Tournament Runner-up. Also a Mixed martial artist, he is a former WAKO-Pro world cruiser heavyweight K-1 rules -94.1 kg champion.
Amansio Andrei Paraschiv is a Romanian professional kickboxer and boxer. He won back to back gold medals in the WAKO European Championships, and is the current SUPERKOMBAT Middleweight Champion. Paraschiv became champion on 12 November 2016 after defeating former It's Showtime 69MAX champion and reigning title holder Chris Ngimbi.
Enriko Kehl, is a German Muay Thai kickboxer who competes in the Lightweight division of GLORY, he previously competed in the Featherweight division of ONE Championship. He is the 2014 K-1 World Max Championship Tournament Champion. Kehl was voted German Kickboxer of the Year in 2012, 2013 and 2014.
Superbon Singha Mawynn, also known as Superbon Banchamek, is a Thai Muay Thai kickboxer fighting out of Bangkok. He is currently signed to ONE Championship. Superbon is the 2016 Kunlun Fight World Max Tournament Champion and 2018 Enfusion Live 76 8-Man Tournament Champion. As of September 2022, Combat Press ranks him as the #1 lightweight and #2 pound-for-pound kickboxer in the world,. As of May, 2023, Beyond Kick ranks him as the second best lightweight and # 2 pound-for-pound kickboxer. As of October 20, 2022, he is ranked #1 in the ONE Featherweight Muay Thai rankings.
Igor Bugaenko, also known as Ihar Buhaenka, is a Belarusian kickboxer, who has been professionally competing since 2008.
Alim Nabiev is an Azerbaijani kickboxer, who has been professionally competing since 2010. He is the former WMC World Light Heavyweight champion.
Cristian Spetcu is a Romanian kickboxer. He currently competes in the featherweight division for the Colosseum Tournament, where he is the reigning Colosseum Tournament World Featherweight Champion. Spetcu has also fought in Superkombat Fighting Championship, OSS Fighters, Kunlun Fight, Glory of Heroes, Wu Lin Feng and K-1.
Johan Tkac
Lofogo Sarour
Chingiz Allazov 
Jomthong Chuwattana 
Wu Xuesong 
Clayton Henriques
Christopher Mena
Vlad Tuinov 
Faton Vukshinaj
Edson Fortes
Nordin Ben Moh
Redouane Derras
Cenk Cankutaranoglu
Amansio Paraschiv 
Ismat Agazade
Mika Tahitu
Christian Baya 
Merray Swedo
Kevin Miruka
Asqar Ghanbari Adivi
Luke Whelan