Berlin, Germany has a vibrant cryptocurrency scene with several exchanges operating in the city. Here are the top ten Bitcoin exchanges in Berlin:

1. Bitwala: Bitwala offers a platform for buying and selling Bitcoin with a focus on making it easy for users to manage their cryptocurrency transactions.

2. Bison App: Bison App is a mobile-first cryptocurrency trading platform that allows users to buy and sell Bitcoin and other cryptocurrencies with ease.

3. Bitcoin.de: Bitcoin.de is one of the oldest Bitcoin exchanges in Germany and offers a secure platform for trading Bitcoin and other cryptocurrencies.

4. Bitstamp: Bitstamp is a global cryptocurrency exchange that allows users to buy and sell Bitcoin with low fees and a user-friendly interface.

5. Kraken: Kraken is a popular cryptocurrency exchange that offers a wide range of trading pairs and advanced trading features for experienced traders.

6. Coinfinity: Coinfinity is a Bitcoin exchange and wallet provider based in Austria with a strong presence in Berlin, offering users a secure platform for buying and selling Bitcoin.

7. LocalBitcoins: LocalBitcoins is a peer-to-peer Bitcoin exchange that allows users to buy and sell Bitcoin directly with each other, providing a decentralized and flexible trading experience.

8. Coinmerce: Coinmerce is a user-friendly cryptocurrency exchange that offers a wide range of trading pairs and payment options for buying and selling Bitcoin.

9. Coincheck: Coincheck is a Japanese cryptocurrency exchange that has expanded its services to include Bitcoin trading for users in Germany and other European countries.

10. Bitpanda: Bitpanda is a cryptocurrency exchange based in Vienna, Austria, with a strong presence in Berlin, offering users a secure platform for buying and selling Bitcoin and other cryptocurrencies.

These are the top ten Bitcoin exchanges in Berlin, Germany, offering a variety of options for users to buy and sell Bitcoin and other cryptocurrencies securely and conveniently.