Robert Arum (born December 8, 1931) is an American lawyer, boxing promoter and businessman.
 He is the founder and CEO of Top Rank, a professional boxing promotion company based in Las Vegas.
 He also worked for the US Attorney's Office for the southern district of New York in the tax division during his legal career before moving into boxing promotion.
Boxing in the 1980s was filled with important fights, events and personalities that shaped the sport.
 Boxing in the 1980s was shaped by many different situations, such as the continuous corporate battles between the different world sanctioning organizations, the void left by Muhammad Ali as the sport's ambassador and consequent search for a new boxing hero, the continuous presence of Don King as the sport's most famous promoter, the surge of rival promoters as Bob Arum, Butch Lewis and Murad Muhammad, and major rule changes.
 In 1986, Mike Tyson emerged as a fresh new face in the heavyweight division, which had seen a decline in champion quality level (particularly in the WBA side) after Ali's retirement and, later on, after longtime WBC ruler Larry Holmes' prime.
 In addition, the IBF and WBO began operating.
Insomniac Events, founded by Pasquale Rotella, is an American tour promoter focusing primarily on electronic dance music events.
 It organizes a number of major dance music festivals, including its flagship Electric Daisy Carnival, along with other events such as Beyond Wonderland, Nocturnal Wonderland and Escape From Wonderland.
 It jointly organized the Together as One festival with rival promoter Go Ventures prior to 2011.
 Insomniac also organizes the "EDMBiz" conference (an industry event that first took place in 2012 to coincide with EDC Las Vegas, in a similar fashion to the Winter Music Conference and the Ultra Music Festival).
 Insomniac is involved in the operation of three Los Angeles nightclubs—Create (in partnership with SBE, built on the site of the former Vanguard Hollywood), Exchange L.A. and the underground warehouse Factory 93, located at 1756 Naud Street.
 Insomniac also organizes drum and bass and dubstep-oriented events under the brand Bassrush, hardstyle events under the brand Basscon and trance festivals under the brand Dreamstate.
Shelly Liebowitz (born February 2, 1946, Brooklyn, New York) is an American record executive, promoter, producer, and manager.
 He is currently the CEO of SRI Label Group, a Los Angeles-based, independent record company that specializes in modern and classic jazz, blues, country and rock.
 In his career as a producer and promoter, he has worked with artists ranging from Sammy Davis, Jr. to John Lennon.
 He has licensed recordings worldwide, and works as a consultant to several major music labels.
 He currently resides in Southern California.
Michael Glenn Chugg, AM (born 15 June 1947) is an Australian entrepreneur, businessman and concert tour promoter.
 As a promoter and manager he was a founder of Frontier Touring Company (1979–99) and Michael Chugg Entertainment (2000–present).
 On 8 June 1998 he was appointed a Member of the Order of Australia with the citation "for service to music and the performing arts, particularly in relation to the promotion of Australian artists and to fundraising for youth and children's charities".
 In 2010 he co-authored his autobiography, "Hey, You in the Black T-Shirt: The Real Story of Touring the World's Biggest Acts", with journalist, Iain Shedden.
 In March 2014 on the 50th anniversary of his start as a promoter, Denis Handlin (CEO of Sony Music Australia) opined "Chuggy is noisy, wild, cantankerous, the oldest teenager I know and very often a nightmare to deal with.
 But somehow we all love him because he lives and sweats the business with 100 per cent persistence and passion".
Vincent Kennedy McMahon (born August 24, 1945) is an American professional wrestling promoter, former commentator, announcer, film producer, actor, and professional wrestler.
 Since taking over the company from his father in the 1980s, he has worked in the corporate area of the WWE and behind the scenes.
 He currently serves as the majority owner, chairman, and CEO of WWE.
Mother Juan Aviance (born 1963 in Charleston, South Carolina) is an American secretary, voguer / dancer, music artist, nightclub host / promoter, record label owner, and CEO / A&R.
 He is the founder and "Mother" of the House of Aviance, one of the legendary houses that emerged from the U.S. ball culture in the 1980's, a House which is still active today and ""currently reigns the club scene in New York City.""
 He is also founder, CEO and A&R of Aviance Records, LLC, a multi-genre record label that promotes new and upcoming artists.
 He is regarded as a ""legend / icon"" within the ballroom scene and is "House Mother" to the nightlife personalities and recording artists Kevin Aviance, Erickatoure Aviance and EJ Aviance
Nick T. Gulas (September 3, 1914 – January 21, 1991) was an American professional wrestling promoter in the Southern United States.
 Also known as The King of Managers and King B, Gulas helped start the careers of such wrestling stars as Tojo Yamamoto, Jackie Fargo, and Jerry "The King" Lawler in the 1960s and 1970s, the Bounty Hunters with Jimmy Kent, and the Interns with Dr. Ken Ramey in the 1970s and 1980s.
 He was partnered with Tennessee promoter Roy Welch for decades.
Robert Francis Xavier Sillerman (born April 12, 1948) is an American businessman and media entrepreneur.
 Sillerman was the owner of a range of television and radio stations during the 1970s and 1980s, In 1993 he formed SFX Broadcasting, and then built SFX Entertainment—a concert and stage performance promoter that was sold to Clear Channel in 2000 for $4.4 billion.
 He refounded SFX Entertainment in 2012 as a promoter of electronic music festivals; that company is now known as LiveStyle.
 He is also the founder of Viggle and the namesake of The Sillerman Center for the Advancement of Philanthropy at Brandeis University.
 Once on the Forbes 400 list, he also briefly owned the WLAF's New York/New Jersey Knights.
Stadiums Limited is an Australian company established in the late 1890's that owned and administered four venues on Australia's east coast at West Melbourne Stadium, Sydney Stadium, Leichhardt Stadium and Brisbane Festival Hall.
 It was founded in 1915 by John Wren and Dick Lean Senior (General Manager).
 Incorporated in its final form in 1915, prior to this, Wren worked with Dick Lean Senior, purchasing the various locations, including the site of what became the West Melbourne Hall, and is now Festival Hall from Reginald (Snowy) Baker.
 Stadiums initially began presenting both boxing and professional wrestling.
 Wren, as he did in other parts of his life, offered a great deal of money to boxers and wrestlers to perform.
 The operations of Stadiums Ltd changed in the second half o of the 20th century, as the venues begun to be predominantly used for live music and for television broadcasts.
 Notably, Dick Lean Jr. (promoter and CEO of Stadiums Ltd), booked the Beatles to play Australia in 1964.
 Lean continued to promote and bring to Australia many of the major headline acts during the 1960s, 1970s and 1980s - who performed in the Stadium's venues in Melbourne, Sydney and Brisbane.

Question: What company is a 1931-born rival promoter to Don King in the 1980's the CEO of?
Answer: Top Rank