IQMining is an online cloud mining service that offers to remotely mine Bitcoin cryptocurrencies (SHA-256 algorithm), Litecoin (Scrypt), Ethereum (Ethash) and other altcoins without the need to buy equipment.

MinerGate is a cryptocurrency mining brand. The platform provides convenient software for mining a number of crypto coins and a mining pool in which this software or one of the supported side apps can be used. The platform was founded in 2014 and has gained a multi-million user base since then.

Although NiceHash is usually regarded as a mining service, it's better to say that it's a kind of a platform for selling/buying cloud mining contracts. What is special about NiceHash is that users can opt for both selling and buying the hash power on this platform.

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.

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.

1ds CryptoPool is a cryptocurrency mining pool in which users can mine LTC, HOLD, CPN, COPPER, LCP, EMD, WDC, GAME, SXC, 888, XGOX, NLG, CAT, QTL, NOTE, NYAN, RUP, BENJI, LINX, CMPCO, SPT, BELA, XMCC, and LEAF. 1ds CryptoPool runs through a PPS payment system. The minimum payout is 0.5, or 0.05 on Sunday and it is paid in the mined currency. The average fee is 1%.

1ds Equipool is a cryptocurrency mining pool in which users can mine BTCZ, HUSH, KMD, Votecoin, ZEC, ZCL and ZEN. Equipool runs through a Prop payment system. The average fee is 1% and the minimum payout is 0.1 BTCZ.

2miners is a multicurrency mining pool with the servers located in the US, Europe and Asia. 2miners supports around 20 currencies including ETH, ETC, ZEC, MUSIC, BTG, ZEN, BTCP, CLO, and many others.

The 803 Mine Pool is a multi-currency mining pool, with a 1% fee. It uses the PROP system with automatic payments every 2 minutes for confirmed blocks at a minimum balance of 0.01 for all coins, SHA256, Scrypt, Groestl & X11 Mining Pools. There is no registration needed and all block rewards for each coin are shared amongst miners.
Running across multiple secure enterprise-grade dedicated/cloud hardware in different geographical military grade datacenters with high availability, redundancy, web & share D.O.S protection, firewalls, encryption and regular backups + friendly mining support.

Adaminers is an ETH, ETC mining pool (more currencies are expected to be supported in the future). It provides miners with European and Turkish servers, allowing them to choose between PPS or SOLO payment methods.

Update: The website is inactive, the pool is closed.
With servers based in Asia, USA and Europe (Australia Included, Core Gear Located in Netherlands) the AkumaXMR, as the name suggests, is a Monero mining pool, with no fees and a reward system RBPPS. The pool is DDoS protected and ARM Friendly.

Alien Cloud presents a cloud mining platform, a mining pool, a cryptocurrency exchange, and a wallet. There's not much info about the company. It is believed that the company is located in Russia although there are no accurate data to dispute or prove it.

AlpEreum is an Ethereum Mining Pool with servers in Asia, Europe and U.S.A. Users can mine ETH for a 0.2% fee and through a Prop payment system. The minimum payout is 0.01 ETH.AlpEreum shares the transaction fees with miners.

Advanced Micro Devices, Inc, most commonly known as AMD, is an American multinational semiconductor company based in Sunnyvale, California. It develops computer processors and related technologies for business and consumer markets. AMD is known in the mining community for producing the most efficient GPUs when it comes to mining.

The Antminer S19j Pro has a maximum hashrate of 104Th/s and an energy expenditure of 3068W.

Merged mining coins
BTC/BCH - NMC,LTC - DOGE

AntPool run by Bitmain Tech Ltd. You can use it to mine BTC/BCH, LTC, ETH, ETC, DASH, ZCASH, SC, XMC and BTM. It has no BTC mining fee for PPLNS but the pool gets to keep all the transaction fees from the block. The coinbase signature for this pool is: "Mined by AntPool".

Arsmine is a multi cryptocurrency mining pool. It provides users with European servers as well as three payout options to mine, PPLNS, PPS, and SOLO. In addition, the pool is compatible with nicehash.

Asic Miner Market is a mining hardware provider. It offers ASIC GPU, Coin, Hash, ASIC Mining hardware, and solutions. All hardware is fully packed, tracked and will need the customer to sign proof. Thus ensuring all products find their way to the customer.

Asus build GPU's, graphics cars, that are used in crypto currency mining especially for ASIC resistant crypto currencies such as Ethereum and Litecoin.

Update 22.12.2020: The pool is closed, the site is down.
Aurora Pool is an Ethereum mining pooll where users can mine Ether (ETH) with 0.7% fee and through a Prop payment system. Aurora's minimum payout is 0.05 ETH.