Some people might think this is a foolish metric, but I think it's actually very telling. Once the information is more widely available - would y'all be able to list who is custodying the BTC for these companies and how?
PS: I'm not surprised at all that CoinGecko beat CoinMarketCap to putting this page out. If any HNers want to read an inspiring bootstrap success story. CoinGecko's is great.[0]