BitDice is a cryptocurrency casino that accepts Bitcoin, Ethereum, Dogecoin, and Litecoin. They've developed a variety of blockchain-based casino games that are powered by smart contracts and are provably fair. BitDice also has a native CSNO token that pays holders dividends and gives them bonuses for playing

Wagerr is creating a blockchain for sports betting. Wagerr will be powered by the WGR token, and will use a blockchain-based platform to decrease betting fees and ensure fair and transparent bets on sporting events.
It will be a self regulating network with application specific smart contracts (ASSC) designed specifically for executing bets on real world sporting outcomes. The multi-tiered network will rely on Oracle Masternodes to execute contracts and will serve as consensus agents that will earn 50% of the trading fees. 2% of the fees will go towards development of the network and the other 48% will be destroyed.

FunFair develops blockchain-based technology for the casino industry. Their decentralized smart contract based gaming platform enables a trustless and transparent technology solution for casino style games.
FunFair leverages the transparency of Ethereum smart contracts to make it easier for online casino operators to create and operate games that are provably fair and trust-less.
FunFair's platform is licensed to users who then use the technology and operate as separate nodes on the Ethreum blockchain. The enormous scope of the online gaming industry makes Funfair's platform a good practical use case for widespread adoption of blockchain.
The FunFair network is powered by the FUN token.