Question: Sunday Times Fast Track 100 is sponsored by the group founded by whom?

full_context: Document 1: Virgin Australia: Virgin Australia Airlines Pty Ltd, formerly Virgin Blue Airlines, is Australia's second-largest airline after Qantas and it is the largest airline by fleet size to use the 'Virgin' brand. Now based in Bowen Hills, Brisbane, the airline was co-founded by British businessman Richard Branson, the founder of parent Virgin Group and former Virgin Blue CEO Brett Godfrey. It was established in November 1999 with two aircraft operating on a single route, and suddenly found itself catapulted to the position of Australia's second airline after the collapse of Ansett Australia in September 2001. The airline has grown to directly serve 29 cities in Australia from hubs in Brisbane, Melbourne and Sydney, using a fleet of narrow-body Boeing and Embraer jets; and Airbus and Boeing widebody jets.
Document 2: Virgin Cola: Virgin Cola is a carbonated cola soft drink produced by Silver Spring and part of the Virgin Group. It was launched in 1994.
Document 3: Profit Track 100: The Sunday Times Profit Track 100 is a list published by British newspaper "The Sunday Times" each year ranking Britain's fastest growing private companies by their average profit growth over the previous three years.
Document 4: The Times Group: The Times Group is India’s largest media conglomerate, according to "Financial Times" as of March 2015. The Audit Bureau of Circulations reported in May 2014 that the "Times of India" had the largest circulation of any English-language newspaper in the world, with 3,321,702 average qualifying sales. The company remains a family-owned business as the descendants of Sahu Jain own a majority stake in The Times Group. The Times Group has over 11,000 employees and revenue exceeding $1.5 billion.
Document 5: Southall Travel: Southall Travel is a privately owned U.K.-based travel agency located in the Municipal Borough of Southall. The company is part of Southall Travel Group and operates both physical locations and online booking. The company has made both the list of Sunday Times Fast Track 100 and Sunday Times Top Track 250.
Document 6: Viagogo: Viagogo is an online ticket marketplace for ticket resale (also called "scalping" or "touting"). The company, which was founded in London in 2006, has a network of more than 60 global websites with customers in 160 countries. Viagogo is backed by the venture capital investment firm Index Ventures as well as Brent Hoberman, the co-founder and former CEO of Lastminute.com and Lord Jacob Rothschild via his family interests. They have faced criticism for inflating ticket prices.
Document 7: Tech Track 100: The Sunday Times Tech Track 100 is one of seven lists of top performing British companies in a variety of categories. Published each September by British newspaper "The Sunday Times" in their business section, the lists are compiled by Fast Track, a British research company. For the Tech Track, the top 100 private technology, digital media and telecoms (TMT) companies are ranked based on their average sales growth over the previous three years leading up to the award year.
Document 8: Simply Business: Simply Business is the trading name of Xbridge Ltd. It is the UK's largest online business insurance broker with 420,000 customers. The company has been featured in the Sunday Times Tech Track 100 four times and in 2015 and 2016 won The Sunday Times 100 Best Companies to Work For.
Document 9: News UK: News Corp UK & Ireland Limited (trading as News UK, formerly News International and NI Group), is a British-based American-owned newspaper publisher, and a wholly owned subsidiary of the American mass media conglomerate News Corp. It is the current publisher of "The Times", "The Sunday Times" and "The Sun" newspapers and its former publications include the "Today", "News of the World" and "The London Paper" newspapers. Until June 2002, it was called News International plc. On 31 May 2011 the company name was changed from News International Limited to NI Group Limited, and on 26 June 2013 to News UK.
Document 10: Virgin Group: Virgin Group Ltd. is a British multinational corporation venture capital conglomerate founded by entrepreneurs Sir Richard Branson and Nik Powell.
Document 11: Sunday Times Fast Track 100: The Sunday Times Fast Track 100 is a list published annually in December in partnership with The Sunday Times newspaper in the UK. It ranks Britain's fastest growing privately held companies by sales growth over the last 3 years. The list is produced by Fast Track, an Oxford based research company, and sponsored by the Virgin Group.
Document 12: Vulcan Inc.: Vulcan Inc. is a private company founded by philanthropist and investor Paul Allen. It was established in 1986 and oversees Allen's diverse business activities and philanthropic endeavors--from sports teams which include the Seattle Seahawks and the Portland Trail Blazers to conservation projects such as the Great Elephant Census, the Seattle Cinerama, and Museum of Pop Culture.
Document 13: Anders Holch Povlsen: Anders Holch Povlsen (born 1972) is a Danish billionaire who is the CEO and sole owner of the international clothes retailer chain Bestseller-Group (Vero Moda, Jack&Jones, etc.), a company founded by his parents, and the biggest shareholder in the British internet clothes retailer Asos and biggest shareholder in German internet clothes retailer Zalando. He is the second largest private landowner in Britain.
Document 14: McLaren Technology Group: The McLaren Group is a British conglomerate based in Woking, Surrey, United Kingdom. Founded by Ron Dennis shortly after his acquisition of the McLaren Formula One team in 1981, it was originally named the TAG McLaren Group due to a partnership with Mansour Ojjeh's TAG Group. It was renamed to simply the McLaren Group in 2003, then to McLaren Technology Group in 2015, before reverting back to McLaren Group in 2017. The group was originally formed from a Formula One team established by New Zealander Bruce McLaren in 1963 and is now focused around the McLaren Honda Formula One Racing Team, the group's second most profitable company.
Document 15: Vodafone: Vodafone Group plc is a British multinational telecommunications company, with headquarters in London. It predominantly operates services in the regions of Asia, Africa, Europe, and Oceania.
ground_truth: Sir Richard Branson and Nik Powell