i only know one company that its legit depend on the other cloud mining which is hashnest. hashnest is the one of the old cloud mining company that still exist until right now and they still operate their cloud mining and reach big members on their sites. they are sell mining hardware for the members and they are very legit for me. i have some hashrate with them for at least 3 years and its works good for me until now but i am not yet buying their hardware because for now, for mining bitcoin is really difficult if we only have small hashrate and its better to stay with them.