Although NiceHash is usually regarded as a mining service, it's better to say that it's a kind of a platform for selling/buying cloud mining contracts. What is special about NiceHash is that users can opt for both selling and buying the hash power on this platform.
Headquartered in Hong Kong, Crypto Drilling is a cryptocurrency mining hardware seller. The customers are able to purchase mining devices such as ASIC miners or mining rigs online and pay using Bitcoin (BTC) or Fiat through a bank transfer. The deliveries are performed within 7-10 business days after Crypto Drilling received the payment.
KomodoPool is a mining pool for Komodo (KMD). The user can mine KMD through a Prop payment system with a 0% fee. The pool shares the transaction fees with miners.