SparkPool.com is a Global Ethereum mining pool that was initially called Ethfans. Currently, using a PPLNS system and has a minimum payout of 0.05 ETH with a 1% fee. (Difficulty set to 4 billion)
MinerGate is a cryptocurrency mining brand. The platform provides convenient software for mining a number of crypto coins and a mining pool in which this software or one of the supported side apps can be used. The platform was founded in 2014 and has gained a multi-million user base since then.
Headquartered in Hong Kong, Miner Bros is a mining equipment seller. The customers are able to purchase devices capable of mining cryptocurrencies online and pay in Fiat or BTC. The company deals into brands like Bitmain, Innosilicon, Baikal, IBeLink, and Whatsminer. The product shipments are performed within 48h of the order confirmation.
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.