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.
MegaPool.io is a modern multi-currency mining pool for ethash-based coins with a beautiful interface. Here, you can mine Ella, Pirl, EXP, Musicoin, Ubq, Soil. The servers are located in Europe, and the pool has a Prop payment system with no fees charged for all coins.
Mining Wholesale is a privately owned company based in The Netherlands, which focuses on the exploitation of mining-related products to consumers and businesses.