Independent Bingo Sites
A lot of bingo sites can be termed "independent" but in this instance we're referring to the bingo software that they're using to power their sites. These are usually big brands in their own right, for example Tombola, or who have developed a unique product such as BingoCams. Not all independents enjoy success. Amuso.com for example tried to 'go it alone' but quickly came unstuck whilst Wonder Bingo found that the transition from social to real bingo room wasn't fruitful.
Tombola Bingo - No Wagering
New Customers Only. Deposit £10 to £25 and get it doubled with a 200% deposit bonus. First deposit only. Any winnings can be withdrawn. Bonus money cannot be withdrawn. 18+.
New Customers Only. All bonuses paid as bonus credit. 100% deposit match of first deposit, up to £100 and paid as bonus credit with a 1x wagering requirement. 18+.
New Customers Only. Minimum £10 deposit required. Max. bingo bonus £150. Bonus can only be used when cash balance is £0. 1 x wagering requirement to withdraw bonus. Bonus expires in 42 days. 18+. Full Terms
New Customers Only. Free bingo available for 24 hours upon registration with no deposit required. Claim six free tickets for 30 games in the Free For All bingo room, between 9am-10pm. 18+. Full Terms
New Customers Only. Get £5 no deposit required to play mobile bingo. There's also a 100% welcome bonus plus a 10% payment bonus offer too. 18+.
It's worth noting though that many sites that use software platforms run independently from other sites using the same systems.