Wellington Management 
 Leyden Ventures 
 Kindred Ventures 
 Initialized Capital 
 Greylock Partners 
 Institutional Venture Partners 
 Initialization Capital 
 Digital Currency Group 
 1confirmation 
 Spark Capital 
 Expanding Capital 
 Fabric Ventures 
 BnktoTheFuture 
 Polychain Capital 
 Section 32 
 True Capital Management 
 Thirty Five Ventures 
 Tusk Ventures 
 Y Combinator