Coinbase Asset Management - Index funds, but for cryptocurrencies 💸
Thresholds - Earn up to 6.25% on your USD, paid daily in bitcoin, with more cryptocurrencies coming soon.
Poloniex - US-based cryptocurrency exchange with maximum security
Human IPO - Invest in people you believe in
Investing.com Cryptocurrency - One-stop-shop for those interested in cryptocurrencies.
CoinBundle - Invest in crypto portfolios with one click and zero fees