Bitcoin is a decentralized digital currency without a central bank or single administrator that can be sent from user to user on the peer to peer bitcoin network without any intermediaries.
1. HashFox
Hashfox cloud mining is the only cloud mining company that adds to mining a certain amount of bitcoin for you through the purchase of hashrates, it also allows the purchase of mining-rigs hosted by them.
2. Genesis Mining
Another equally reliable site is Genesis Mining. It is one of the main sites of cloud mining and without a doubt it is most reliable alongside with NuVoo, CCG, Hashflare and Hashing24. Genesis Mining is considered the largest bitcoin cloud mining due to the large number of customers and the equipment they have built in Iceland. Bitcoin Mining starts from $139/3THs.
3. Hashflare
Hashflare Cloud Mining is a service that offers different packages and allows you to mine ethereum at very low prices, including 1.4$ at this moment.
4. Hashing24
Hashing24 is also a cloud mining company and their services are reliable. The payments are punctual and it is possible to start with 20$ packages. It's the ahead of other sites for two reasons: 1. The site isn't so much intuitive 2. It's possible to mine only BTC.
5. CCG Mining
CCG Mining has been operating in the sector for many years. The site is very reliable, the price are quite affordable and the company is based in London. They offer a range of services including mining rigs sale and cloud mining contracts.
The site accepts payment by credit card or bitcoin and can mine BTC, BTH, ETH, ZCASH, LTC and Monero.