Our group is specialized in HFT on US stock markets. In late 2017 after cryptocurrency market boom when Bitcoin hit 20,000 USD price level we’ve realized there is a good opportunity to adapt our existing trading algorithms to cryptocurrency markets. But we’ve faced with the issue of absence of professional tick data for algo strategies backtesting. After long search on internet we’ve stopped our choise on a two intraday data suppliers: BitDataset and another French provider firm. Finally after investigation of the data samples of both providers we’ve convinced BitDataset’s data sets are having far better quality level and perfectly fits for our goals.