
A bookmaker, bookie, or turf accountant is an organization or a person that accepts and pays off bets on sporting and other events at agreed-upon odds.

888sport is a multinational online sports gambling company headquartered in Gibraltar. It was founded in 2008 and is a subsidiary of 888 Holdings plc. The company provides online sports betting, predominantly in European markets.

Doris Elizabeth Angleton was an American socialite and murder victim. Her husband, Robert Angleton, had been accused of planning the crime. Roger Nicholas Angleton, Robert Angleton's brother, admitted to directly killing his sister-in-law and exonerated his brother before killing himself.
bet-at-home.com AG is a European online gambling and sports betting company that was founded in 1999.

Bet9ja is an online bookmaker company that offers betting on major sporting events operating in Nigeria. Traded under KC Gaming Networks Limited and run by a series of shareholders of multiple nationalities, the website is licensed by the Lagos State Lotteries Board (LSLB) with permission to operate in other parts of Nigeria.
Betfred is a bookmaker based in the United Kingdom, founded by Fred Done. It was first established as a single betting shop in Ordsall, Salford, in 1967. Its turnover in 2004 was reported to be more than £3.5 billion, having risen from £550 million in 2003 and has continued to grow to over £10 billion in 2018-2019. It has its head office is in Birchwood, Warrington, and also has offices in Media City, Salford Quays, Salford.

In the United Kingdom, Ireland, Australia and New Zealand, a betting shop is a shop away from a racecourse ("off-course") where one can legally place bets in person with a licensed bookmaker. Most shops are part of chains including William Hill, Ladbrokes, or Coral. In Australia and New Zealand, they are operated by totalisator agencies In the United States post PASPA, brands like DraftKings, FanDuel and William Hill have a presence. Betting shops include America's Betshop and Betfred.

Betvictor Ltd, is an independent bookmaker. Having initially specialised in online sports betting, the company now incorporates online casino. The company was originally set up and named after its former chairman, Victor Chandler, before a rebrand to BetVictor. The company is now owned by businessman and racehorse owner Michael Tabor, with operational headquarters in Gibraltar.

BoyleSports is Ireland's largest independent bookmaker.
Victor William Chandler is a British businessman, bookmaker, and former chairman of the company BetVictor, legally Victor Chandler International.

Neil Andrew Channing is an English professional poker player and author based in Maida Vale, London. He is the 2008 Irish Poker Open champion. He is also the Ambassador for Sky Poker.

Circa Sports is an American sportsbook operator based in Las Vegas. It was founded by casino owner Derek Stevens and began operations on June 1, 2019. It is named after Stevens' Circa Resort & Casino in Las Vegas. The resort includes the company's flagship sportsbook, with 1,000 seats spread across three floors. Other locations in Las Vegas include the Golden Gate and The D Las Vegas, both owned by Stevens. It also launched online and mobile app betting in Colorado on July 1, 2020, through a partnership with Century Casinos. It expanded its mobile app operations to Iowa on October 7, 2021.

Colossus Bets is a British bookmaker specializing in pools betting, with head offices based in London, England. It was founded by former Monsanto PR operative Bernard Marantelli and Zeljko Ranogajec in 2012 and set out to modernize pools betting by incorporating modern betting features such as Cash Out and Syndicates, as well as offering lottery-sized jackpots.

Tony Grosso was an American bookmaker from Pittsburgh, Pennsylvania.

Ladbrokes Coral is a British betting and gambling company. It is based in London. It previously owned the Hilton hotel brand outside the United States, and was known as Hilton Group plc from 1999 to 2006. In November 2016, Ladbrokes acquired Gala Coral Group, and changed its name to Ladbrokes Coral.

Joseph Oller (1839–1922) was a Spanish entrepreneur who lived in Paris for most of his life. He co-founded the famous cabaret Moulin Rouge with Charles Zidler and was the inventor of the parimutuel betting.

OPAP – Greek Organisation of Football Prognostics S.A. is a Greek company organizing and conducting games of chance. It is headquartered in Athens and for many years OPAP was a state-owned gambling monopoly. The company holds the exclusive rights to organize and manage numerical lotteries and sports betting games in Greece. In 2013 the privatization of the company was completed through the sale of the State's remaining 33% stake to the Emma Delta investment scheme.

The Tote, formerly the Horserace Totalisator Board and called in rhyming slang the nanny, is a British bookmaker with head offices in Wigan. It was owned from its formation in 1928 by the UK Government but was sold to Betfred in July 2011, and later sold to UK Tote Group, formerly Alizeti Capital, in October 2019. Under the brand totesport the Tote had 514 high street betting shops, outlets on most of Britain's 60 racecourses, as well as internet and call centre divisions. The company is known for its pool bets such as the Scoop6, and until 13 July 2008 was the only organisation in the UK that was allowed to run pool betting on horseracing. On 13 July 2018 Colossus Bets among others entered the UK market offering Horse racing (tote) pools also in competition with The Tote.

Tipsport is the largest betting agency in the Czech Republic. The company was founded in 1991 in Beroun by a group of local businessmen led by Vratislav Randa, who is still a chairman of the board. The first branch was opened in May 1991. By now, the company has almost 700 branches across the Czech Republic. A real milestone for Tipsport was the license for internet betting in 2009. After more than 12 years, internet betting makes a 95% of all bets accepted by the company. In 2017, when the new Czech gambling legislation was adopted, Tipsport opened an online casino named Vegas.

Topaz is a bookmaker in Azerbaijan.

The Totalisator Agency Board, universally shortened to TAB or T.A.B., is the name given to monopoly totalisator organisations in Australia and New Zealand. They operate betting shops and online betting. They were originally government owned, but in Australia most have been privatised. In Victoria, for instance, the Victorian Totalisator Agency Board began operating in March 1961 as a state enterprise, and was privatised in 1994.

Arthur Whalley was an English professional footballer who played as a half back in the Football League, most notably for Manchester United. He was nicknamed 'The Black Prince'.