1. Coinfloor: Coinfloor is a London-based cryptocurrency exchange that offers trading in Bitcoin and other digital assets. It is known for its security features and user-friendly interface.

2. CEX.IO: CEX.IO is a popular cryptocurrency exchange that allows users to buy, sell, and trade Bitcoin. It offers a range of trading options, including spot trading and margin trading.

3. Luno: Luno is a Bitcoin exchange that is popular among UK traders. It offers a simple and easy-to-use platform for buying, selling, and trading Bitcoin.

4. eToro: eToro is a social trading platform that allows users to trade Bitcoin and other cryptocurrencies. It offers a range of trading tools and features, including copy trading and a built-in wallet.

5. Binance: Binance is one of the largest cryptocurrency exchanges in the world and offers trading in Bitcoin and other digital assets. It has a strong presence in the UK and is popular among traders.

6. Kraken: Kraken is a US-based cryptocurrency exchange that is popular among UK traders. It offers trading in Bitcoin and other cryptocurrencies, as well as advanced trading features like margin trading and futures trading.

7. Bitstamp: Bitstamp is a European cryptocurrency exchange that offers trading in Bitcoin and other digital assets. It is known for its security features and regulatory compliance.

8. Coinbase: Coinbase is a popular cryptocurrency exchange that allows users to buy, sell, and trade Bitcoin. It offers a range of trading options, including spot trading and margin trading.

9. Gemini: Gemini is a US-based cryptocurrency exchange that is available to UK traders. It offers trading in Bitcoin and other digital assets, as well as a range of trading tools and features.

10. Bittrex: Bittrex is a US-based cryptocurrency exchange that offers trading in Bitcoin and other digital assets. It is known for its security features and wide range of trading pairs.