Coins.Farm is a cryptocurrency mining pool focusing on providing equihash coin mining. The available coins are Komodo, Hush, Bitcoinz and Zclassic. The pool charges a 0.8% fee and runs on a PPLNT system.
F2pool is a Chinese multicurrency mining pool founded in 2013. Now it has servers located in the USA, Canada, Russia, Singapore, and several other countries. The pool has a big number of supported coins. Currently, it is possible to mine around 40 currencies on F2pool.
ECOS is a large infrastructure project with own industrial mining center based in the Free Economic Zone in Armenia, established by the order of Armenian Government.
HashFlare is a popular cloud mining platform launched in 2015. It is praised for its user-friendly interface making it possible to earn crypto for people unfamiliar with the world of cryptocurrencies . There are five currencies that can be "mined" on HashFlare: Bitcoin (BTC), Ethereum (ETH), Litecoin (LTC), Dash (DASH), and Zcash (ZEC).