BlockTower Capital is an investment firm that applies professional trading, investing, and portfolio management to emerging digital asset classes such as cryptocurrencies.   It was started in August 2017 by Matthew Goetz and Ari Paul and is based in New York City.
Goetz is a former engineer who worked in investment management at Goldman Sachs for 11 years and Paul was a portfolio manager who oversaw risk at the University of Chicago's endowment investment office. Goetz is the CEO and Paul is CIO.  
In December 2018, BlockTower announced that they had hired Michael Bucella as their Global Head of Strategic Partnerships & Business Development, growing their team to eight people. Bucella was previously a Vice President at Goldman Sachs working on multi-asset sales in Canada.