A Seattle startup called Wrench has raised $4 million in Series A funding for an app that sends certified auto mechanics to the customer’s door. The round was led by Madrona Venture Group, accor
<strong>Editor’s note:</strong> <em>This guest post was written by Len Jordan, who is a venture partner at <a href="http://www.crunchbase.com/financial-organization/madrona-venture-group">Madrona Ve