MoneroHash is a US mining pool created solely for Monero mining. Since 2014 it is run by a single person. The fee is 1.6 and a part of this amount is given to open source developers. The payouts occur every 24 hour (in case if the threshold is reached). There's an option to send the mined coins straight to the exchange wallet. It saves users some money that could be spent on transaction fees.
Slush Pool is the oldest mining pool (works since 2010) initially designed to mine Bitcoin. Currently, this pool supports one more currency — Zcash. Slush Pool has servers in many locations including Japan, Singapore, the US, Europe, Canada, and China.
Whatsminer is headquartered in Shenzhen, China. It also has a satellite office in America to assist westerners with buying and servicing their Whatsminer's in their farms. Whatsminer is an ASIC based Plug & Play Bitcoin Mining hardware appliance. It allows users to start mining Bitcoin or Bitcoin Cash immediately and jump into the new digital gold rush. Whatsminer announced it has successfully finished the integration of osTicket support ticketing system into the Whatsminer.net website.