SAN FRANCISCO — Last fall, Keith Krach hosted an event called “An Evening of Opportunity” at his home in San Francisco, California.
Guests gathered in a room overlooking the Golden Gate Bridge to the west and the skyscrapers to the east as they enjoyed small bites and drinks and heard from Krach, his son, and the chief executive officer of Opportunity International, Atul Tandon.
Krach, who is the chairman and largest shareholder of DocuSign, the eSignature company that is set to go public this week, is one of a growing number of Silicon Valley billionaires. He is also a supporter of Opportunity International, an organization that provides microfinance loans, savings, and insurance to 4.7 million clients in 22 countries. Krach, who previously founded the enterprise cloud software company Ariba, which sold for $4.3 billion, spoke about Opportunity International with the excitement of someone trying to make a deal.