OKEx is multi-cryptocurrency exchange with a suite of algorithmic trading tools designed for the professional traders. It's among the biggest and most trusted exchanges and provides, crypto-to-crypto trading, FIAT trading and digital asset based futures with multiple leverage choices. OKEx offers a comparatively wide range of trading pairs and the ability to trade directly to and from fiat currency. OKEx is also taking steps to develop the cryptocurrency derivatives market by offering futures. OKEx is the second-largest cryptocurrency exchange in the world by volume and offers several different verification levels, each with its own set of requirements and privileges. Moreover, OKEx is considered to be one of the most advanced trading exchanges.

Coinbase is one of the most trusted cryptocurrency exchange platforms in the world, the largest digital asset exchange platform in the world and supports more than 33 countries with more than 4 million active users. Traders are allowed to purchase and sell bitcoins using their bank account, credit card, PayPal, and other payment methods. Coinbase is a beginner friendly platform but before purchasing cryptocurrencies, you will have to set up your account and you are required to link a valid bank account. Currently, Coinbase is planning to add over 30 new cryptocurrencies such XLM, EOS, XRP or Cardano, in addition to the ones they are already offering. Recently, they also started crypto-to-crypto services.

Bittrex is a well established and highly regarded crypto trading platform, with many coins and tokens to choose from. The interface is not for complete beginner’s but you should be able to find your way around after a little while. Bittrex was founded in 2014 by Bill Shihara, who previously worked as a security engineer at Amazon and Blackberry, and the exchange places a special emphasis on reliability and preventing security breaches. All Bittrex accounts must be verified before requesting and withdrawal. To date, Bittrex holds almost 300 cryptocurrencies, features fast deposits and withdrawals, FIAT trading (which is being rolled out to its customers in phases) and a solid customer support. Bittrex sees itself as a next generation crypto trading platform and aims to deliver the fastest and most secure trading services. 

Bitladon Exchange is part of Coin Meester B.V., a company registered in The Netherlands, owned by Boyd Meuleman & Mitchell Zandwijken. It has been in operation since June 2017 and quickly gained popularity in the countries it operates, due to their fast EURO deposits and withdrawals. While Bitladon is one of the newest cryptocurrency exchanges available on the market, it has quickly managed to attain a high level of trust from its users and the digital currency community which implies that at Bitladon security is taken seriously. You can check it yourself on Trust Pilot to see some of users' opinions. Two-factor authentication is available and is always a nice sight. Moreover, Bitladon will ask you send you a code via e-mail each time you want to access your account, right after registration and they also encourage you to enable the 2FA with Google Authenticator. 

Huobi is one of the world's leading trading platform, committed to providing investors with a professional, safe and honest transaction services.  Huobi is a Singapore-based exchange with a focus on customer service and independent cryptocurrency analysis. Founded in 2013, Huobi is still very much centered on the Asian market, with offices in Japan, Korea, and Hong Kong, in addition to its head Singapore office. Huobi does maintain a single office in the U.S. However, as of May 2018, Huobi warns U.S. visitors to its site that it cannot accept their registrations due to U.S. regulatory laws. The company has stated that it intends to open a service for U.S. citizens in the near future, based out of its San Francisco, California, location.

Founded in 2011, Kraken is one of the oldest and most popular cryptocurrency exchanges currently in operation. The exchange has built a reputation as being a secure destination for anyone interested in trading cryptocurrencies and it is also a popular choice for both traders and institutions across a variety of locations. Kraken retains an international appeal and provides efficient trading opportunities in numerous fiat currencies. Kraken is also the current world leader in terms of Bitcoin to Euro trading volumes. Kraken allows for deposits and withdrawals via CAD, EUR, JPY, and USD, with fiat currency payments being conducted via Bank Transfer. For users with a bank account within the European Economic Area, the SEPA payment system is also supported.

Of all the  famous  and well-known exchanges that exist in the cryptocurrency world, Poloniex has always been something of an outlier. Despite having enviable brand recognition (anyone who has been around crypto long enough will nod yes when asked if they know  Polo ), Poloniex has managed to remain waiting in the wings while other exchanges have gone to greatness.