eHashCoins.org is a multi-currency mining pool. Here, you can mine the ethash and equihash algorithms through a solo payment system and ethash through PPLNS.
F2pool is a Chinese multicurrency mining pool founded in 2013. Now it has servers located in the USA, Canada, Russia, Singapore, and several other countries. The pool has a big number of supported coins. Currently, it is possible to mine around 40 currencies on F2pool.
HashCore Mining is a UK-based company with two mining farms located in Romania. HashCore provides its customers with mining services and offers Cloud Mining Contracts, Hosting/Colocation, Mining Equipment and turnkey mining farm solutions for large-scale customers.
Their Cloud Mining Contracts allow users to mine most cryptocurrencies with the equipment of their choice, earnings are delivered on daily basis and directly on the wallet of the users.
HashCore Hosting/Colocation services allow users to send their miners for hosting, charging the price per kWh and including full services and with no hidden costs.
GigaWatt provides Turnkey mining services or custom packages tailored to your needs: full range of mining services from equipment sales, maintenance and repair to private blockchain servicing.