At the age of 25, he fulfilled a long-time dream by sailing across the Pacific to Tahiti on a 34-foot sailboat. In 1986, after returning from Tahiti, he co-founded ValuSource and became its president, and shortly thereafter started Kids Express with his wife Michelle. Kids Express was an alternative K-9 school which focused on academic excellence, self-awareness, interpersonal communication, and personal responsibility.
Over the past 30 years, ValuSource has become the leading provider of business valuation software in the World. In 1994 David had sold ValuSource to the global publishing company John Wiley & Sons (JWS). Later it became clear that ValuSource needed its independence back in order to continue to prosper so David re-purchased the company.