Betting on sports is one of the most favourite past times for sports enthusiasts around the globe. Not only that it adds some extra excitement to the games, but it also lets you put your knowledge about the sport you are watching to the test.

Today, there are plenty of different bookmakers around the world that offer diverse bonuses, odds, and different markets you can bet on. But when you take all those aspects into consideration, who are some of the biggest online bookmakers out there? Well, let’s find out, shall we?


Betway is an international gambling company with licences in the UK, Germany, Sweden, Ireland, Denmark, Italy, Spain, Malta and Belgium. The company was founded in 2006, and it is one of the most recognizable names in the gambling industry. Alongside being a bookmaker, this operator offers additional services, such as Betway Casino, Betway Bingo, Betway Poker and a few more. You can check out this Betway review if you wish to learn more about them or find out what bonuses they offer.

In the UK, Betway sponsors various events, such as boxing, tennis, horse racing and even eSports. Currently, they are also the official sponsor of West Ham United, a member of the English Premier League.


With 4300 employees and around 35,000,000 customers worldwide, Bet365 is by far one of the best-represented online bookmakers. Bet365 is an online gambling company and, even though they are based in the United Kingdom, they are registered in Gibraltar. In addition, they have offices in Australia and Bulgaria. The company was founded in 2000 by Denise Coates, a British billionaire businesswoman. Similar to many other bookmakers online, they also operate as a casino and allow their players to enjoy video slots, scratchcards, poker and bingo.


Unibet might have only 1000 employees, but they operate in more than 100 countries and have more than 11,000,000 customers. The company is a part of the Kindred Group, an online gambling operator, and includes many other reputable brands, such as 32Red, Stan James, Maria Casino, iGame and a few others. Their platform allows players to play online poker, casino games, and of course, place sports bets. It was founded in 1997 by Anders Ström, and their headquarters are in Malta.

The Kindred Group is licenced in Gibraltar through Platinum Gaming Limited, which allows Unibet to operate under the same licence. Not only that, but Unite also holds a licence from the UK Gambling Commission.

William Hill

William Hill is one of the oldest bookmakers on the market. It was founded in 1934 in London, UK, when gambling was illegal. However, that didn’t stop William Hill to grow into one of the most reputable bookmakers of today. Throughout its long history, the company changed hands many times; however, that didn’t prevent them from continuing to expand. William Hill operates globally and employs more than 16,000 people. As they cover a great variety of betting markets, it is estimated that they have around 3,500,000 customers.


Betfair is the largest online betting exchange that offers a sportsbook with fixed odds betting, as well as an online casino, poker and bingo. The company was founded in 2000 by Andrew Black and Edward Wray, and their current headquarters are located in Hammersmith in West London, UK. In 2014 they partnered up with NetEnt — one of the biggest names in the industry of video slot software providers — in order to further expand in the UK market. In 2016 Betfair Group plc merged with Paddy Power and formed Paddy Power Betfair.

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