He has previously been a director of Revelytix Inc, (sold to Teradata), an enterprise data company, CEO of Eyeona a software company marketing a retail pricing application, Managing Director US Operations of ItemField, a venture backed startup (sold to Informatica), and Senior Vice President of Nastel Technologies, an enterprise software company.
Take context from the input text and decide on the accurate relationship between 'software company' and 'software' from the options provided.
Options: product/material produced, manufacturer, founded by, employer