Ethermine contributes to the same mining pool as Ethpool and this pool provides around a quarter of the hashrate used for the mining of Ether. In other words, this pool is the largest Ethereum mining pool.
Digger is a mining pool that allows users to mine Ethash cryptocurrencies such as Ethereum, Ethereum Classic and Expanse. Digger charges a 0.5% fee for ETH and a 1% fee for ETC and EXP and has a Prop payment system.
Based in Romania, Costa Nord Mine offers Ethereum cloud mining services, allowing users to purchase hashpower without having to deal with complex hardware and software configuration. Costa Nord Mine offers mining services and a variety of mining-related solutions for small and large investors.