A record $7.4 billion of private capital investments flew into Africa in 2021, more than double the $3.4 billion received in 2020 and $2.6 billion higher than the previous record in 2017. High net worth individuals like Amazon (AMZN +0.35%) founder Jeff Bezos, Tinder founder Justin Mateen and Twitter (TWTR -0.76%) founder Jack Dorsey all made investments in African companies, while Asian heavyweights like SoftBank and Tencent Holdings up their stakes in African startups as well.