MoneroMilk is a XMR mining pool. It has a 1.2% fee (of which 0.2% is donated to the Monero core dev team) and runs on a Prop distribution method. The payout is set at 0.35 XMR.
Solo.CKPool is a solo mining pool with a 1% fee for BTC. CKPool allows users to mine solo without downloading the blockchain or running a node, which means users get 99% of the full bitcoin block reward (12,5 BTC).
Obelisk is a wholly-owned subsidiary of Nebulous, Inc., the company behind the creation of Sia, a blockchain-based storage network that operates on top of a decentralized market.
The Obelisk company focuses on building mining equipment for the SiaCoin, a Blake2b-based cryptocurrency. So far, the company has released one ASIC miners dubbed Obelisk SC1.
HydroMiner ist ein Kryptowährungs-Bergbauunternehmen, das grüne Energie aus Wasserkraftwerken im Alpenraum Europas nutzt. Wasserkraft wird allgemein als eine der effektivsten und kostengünstigsten erneuerbaren Energiequellen angesehen. Es ist umweltfreundlich, klimaneutral und natürlich.