I left my job on Wall Street — now my coffee company brings in $3 million a year

Despite being a child of Kenyan coffee farmers, it took a trip to America, an MBA at Harvard and a short stint in investment banking for Margaret Nyamumbo, 36, to realize she could build a profitable coffee business while giving back to the sort of farms that raised her. In 2023, her business Kahawa 1893 sold more than $3 million worth of coffee.