Biggest Online Casinos: A Brief Study

Best Online Casinos

Last Updated on 05/01/2023

Last Updated on 05/01/2023

1 5 / 5
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3 4.8 / 5
7000+ games

Boomerang Casino

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Powbet Casino

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Last Updated on 05/01/2023

Biggest Online Casinos Introduction

The online gambling scene is evolving with time. New casino groups are being launched every day.  The colorful and flashy online casinos have become a fun place for players to fulfill their gaming requirements. 

However, not casino groups are reputable. Some of these groups are not even registered. While, there are others, which are more popular than the others. In this article, we are going to take a look at the biggest online casino domains in the iGaming world. So, let’s proceed with it.

1.    888 Holdings Plc.

It is one of the biggest online casino websites you will come across. They generated more than £600 million in 2019. This is the reason it has been able to take its place in the past. The company is the brainchild of Aaron Shaked, Avi Shaked, Ron Ben-Yitzhak, and Shay Ben-Yitzhak in 1997. The top casinos under this group are 888 Poker, 888 Casino, 888 Poker, and many others. 

2.   Betfred

Apart from being one of the biggest online casinos, it is also the oldest one on the list. The group has an interesting history to it. This company had been developed from the bet that was won by the Done Brothers in 1966. But since then the company has grown leaps and bounds.

It is a casino group under Done Brothers without any selling of rights or mergers. The company showcases incredible leadership. 

3.    William Hill

It is one of the oldest and biggest online casino on the list. William Hill set its foot in the market in 1934. But the company has seen a change of leadership. They might not be the biggest but they are the biggest in terms of the employees. It has more than 16,000 employees across the world. It offers gambling services in poker, online bingo, horse racing, and casino. In 2020, the casino group was able to collect £1.6 billion in revenue. 

4.    Scientific Games

This is an American gaming company that was established in 1917. It is the brainchild of Daniel Bower and John Koza. As one of the biggest online casino, it provides gambling services and also products to many other gambling services. 

At the end of the 2019 financial year, the company made £2.75 billion through many branches employing 6,000 employees. 

5.    Bet365 

Another gambling giant on the biggest online casino list is Bet365. It is known to be one of the top betting firms in the iGaming world. The company has shown exponential growth. In fact, it has worked hand-in-hand with technological advancements. Denis Coates is the founder of the casino. But it is handled by the Coates family. Also, the casino group has a casino to its name. The company has been able to generate more than £3 billion as revenue. One of the most amazing things is that Bet365 is a sponsor of 10 La Liga football squads.

6.    GVC Holdings

This group, as one of the biggest online casino groups, was set up in 2004. Since then, it has been able to obtain the ownership of the best gambling companies in the United Kingdom. GVC Holdings is one of the most popular gambling companies in the world. It makes up to £3.7 billion as revenue. Also, it employs over 30,000 employees. 

On this, it is the highest figure. The company operates other brands, such as partypoker, sporting bet, Bwin, Foxy, and Gala. As per the statistics, the company has more online bettors and players than any other platform on this list. 

7.    The Stars Group

By acquiring different top betting companies, such as Crown Bet and Bet Easy, the group has become one of the biggest online casino companies across the world. The company set its foot in the market in 2001 as Amaya Incorporation. It has been operating for more than 19 years. And it has been able to collect the highest amount of revenues. Some of the brands under this company are PokerStars Casino, PokerStars, Betstars, and more. At present, it is the 5th biggest online betting group in the world. 

8.    International Games Technology

It is a big gambling company, one of the biggest online casino sites, that has been operating since 1975. Since then, it has gone through various changes of ownership. William Reed is the founder of the company. He was the developer and seller of slot machines. 

At Present International Games Technology is so big that it has more than 12000 employees working under it. All its gambling sites include horse racing, poker, casino, and many more games. 

Biggest Online Casinos Licences

These large casino brands and groups have several licenses. That is essential to be able to operate in different countries of the world. Hence, most large casino companies hold at least two operating licenses, if not more. These usually include UKGC, MGA, or Curacao gambling licenses. These authorities provide licenses to casinos to operate in many countries. However, many countries also need online casinos to abide by their specific gambling laws. For instance, 888 casino group has an operating license under UKGC. However, in order to operate in North American states, it needs state-wise licenses. Currently, it has a license to operate in a total of nine states in the US.

Range of Games

Most of the older gambling domains such as 888 Holdings, William Hill have been sportsbook makers initially. As a result, when they started operating online, they included sportsbooks and table games like poker. Indeed, 888poker is one of the veteran sites that introduced online poker to the world.

Today, however, most gambling domains, old and new, do not focus on one particular casino game or category. They usually provide slot games and table games in different sections. Many also include sportsbooks, bingo rooms, and lottery sections as well.

Top Casino Sites

1.    Ignition

If you are looking to try out poker or other card games, Ignition might be the ideal choice for you. It allows you to pay through Bitcoin. So, you will be able to use the platform anywhere at any time. 

At Ignition, you are going to come across a range of online casino games. Hence, it makes sure that players don’t easily get bored at the site. In fact, it has more than 200 slot games. At this site, you can claim some incredible bonuses. 

2.    Red Dog

In case you are looking for an online casino that will provide you with an extensive range of games, Red Dog might be the ideal choice. There are over 60 real money game types that you can select from. Thus, you will be able to try out something new every time at this domain, one of the biggest online casino sites.

It is secure and convenient to play on this platform as you don’t have to download any software. So, you can access the platform on your browser. 

At Red Dog, you will be able to claim an amazing welcome bonus and other offers. You can take advantage of this to play the games that you like. The casino is easy to navigate through. Even if you are new to the online casino, you will not have any trouble finding what you are looking for.

3.    888 Casino

888 Casino is one of the biggest online casino websites in the iGaming world. It is highly popular in the United Kingdom. In fact, the casino is also listed on the London Stock Exchange. Thus, you can easily trust them. 

The casino is popular across the world. Hence, it offers an extensive range of banking options, such as Skrill, Neteller, PayPal, Credit Cards, and many more. So, you can use any deposit method you like for completing the transaction at the site. At the casino, you are also going to come across a wide range of bonuses. 

Use the bonus to play games, such as slots, roulette, blackjack, and more. 888 Casino is safe and secure. You don’t have to worry about losing your financial details while playing at this site as it uses SSL encryption and firewalls.

4.    Royal Panda Casino

Royal Panda is a casino that has been around for quite some time now. Once you take a look at their site it will be clear why it is one of the biggest online casino domains. No matter if it is the game selection or the site setup, you are not going to be disappointed. 

Royal Panda makes it a point to cater to the demands of the players. It takes measures to ensure you have a good time. This is evident in the withdrawal process it has to offer to its customers. The process is fast, easy, and secure to execute.

Customers will find an array of deposit and withdrawal options. The casino doesn’t charge any fee for the transactions you make. But the providers might have a different fee structure. You can receive the money within a few hours if you are using eWallets. 

On Royal Panda, you are going to find all types of games, including slots, table games, and live dealer games. 

5.    Betway

If you have been playing casino games for some time now, you might have already heard about Betway. The platform, one of the biggest online casino platforms, provides an all-inclusive sportsbook where you will be able to take advantage of several offers. The sportsbook is extensive and provides all types of sports to its customers. 

Betway is an all-encompassing sportsbook. Apart from the sportsbook, it also has a casino section where you will be able to try out some common casino games. The site provides incredible player bonuses. 

However, the only drawback of the site is it has only a few deposit and withdrawal methods. This can be a problem for some players out there. 

6.    Sun Bingo

Sun Bingo is one of the top bingo and biggest online casino sites in the United Kingdom. If you love playing bingo, you might love to play Gala Bingo. But this is not the only bingo game that you will find on this platform.

Another great thing about the site is you will also get to play other casino games, such as video poker, slots, roulette, and blackjack. 

At the site, you will find a wide range of payment choices, including Neteller, PayPal, bank transfers, and credit cards. So, you will be able to make easy deposits and withdrawals. Also, the casino will reward you with some exciting bonuses. 

Sun Bingo has a mobile app for Android, as well as iOS. Thus, you will be able to play the games on the go. Almost all games are available for playing on mobile. 

7.    Europa Casino

This casino, among the biggest online casino sites, is going to provide you with the best Welcome Bonus. And, Europa Casino provides a profitable bonus to all its new players. The Welcome Bonus has been distributed over several deposits. That makes it worth using. 

However, that is not the only reason the casino is a part of this list. On this platform, you will get to choose from more than 400 games. In fact, most of these games have been created by top software providers, such as Microgaming and NetEnt. 

You will find many payment methods that make it easier for you to deposit money into the casino. But the only drawback is the casino places a withdrawal limit. This can be a stumbling block for the high rollers.

8.    Royal Vegas Casino

So, you might not be able to travel to Las Vegas to play your favorite casino game but you can always access Royal Vegas Casino. Probably, this is as close as you can get to one of the biggest online casino sites. The theme is easy on the eyes. You will be able to navigate through the site without any hassle. At the gambling site, you will find a large number of games. However, what makes it stand out from the rest is its collection of Live Casino games. The live games are the best that you will come across. 

The games on this platform are all powered by Microgaming. So, you will not find games by any other provider. But this is just a minor complaint. 

9.    Bovada

In case you are into casino games, as well as sports betting, Bovada might be just what you are searching for among the biggest online casino sites. Since it isn’t a site that is all about sports betting, you will be able to play slots, poker, and live dealer games.

The site offers enough payment methods for you to complete the transaction without any hassle. In case you would like to play or bet on sports on the go, access Bovada mobile betting platform. You can access the mobile site from your Android or iOS devices. 

At Bovada, you will be able to claim a generous welcome bonus and other offers. 

10.    Super Slots

In case you love video poker at the biggest online casinos, you should try out Super Slots. It is an online portal where you will find more than 30 video poker titles. So, it can easily satisfy your poker cravings. 

At Super Slot, you will also be able to enjoy slots.  The casino offers an incredible Welcome Bonus for all the new players. You can take advantage of that to play the game of your preference.

The biggest online casino makes sure you can make easy deposits and withdrawals. In fact, the site has a fast payout speed. Hence, you will quickly be able to access your wins. 

Biggest Online Casinos Bottom Line

Pros and cons


  • Large casinos have established a presence in the market.
  • Licensed, regulated sites provide a secure gambling experience.
  • Payments are secure and assured for the players.
  • Many large casino brands and groups are listed companies.


  • Not all countries have access to these reputed casinos.
  • Registrations are restricted to these sites for residents of non-participating

New casinos are being introduced. So, the list of the biggest online casino websites keeps changing. When you play in an online casino, you need to ensure you are choosing the best one as per your game preference.


  • Is it safe to register at these sites?

Yes, when it comes to online gambling, the biggest casinos or groups are licensed, legitimate entities. They are safest for players to register and deposit their funds.

  • Do these casinos offer good bonuses?

Bonus options do differ from one casino to another. However, these large casinos will deliver as per the terms they mention. Hence, all their promos can be relied upon.

  • Is it profitable to gamble at large casinos online?

Profitability in the line of gambling is a matter of chance. However, these large casinos do ensure a safe, enjoyable gambling experience. Also, all games at their sites are also of licensed brands which follow RNG and publish RTPs.

Bart Crebolder
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