Polco, a Madison startup with a political participation platform, has won the Greater Madison Chamber of Commerce‘s “Pressure Chamber” pitch contest and an all-expenses-paid trip to Silicon Valley.

Polco, whose corporate name is Policy Confluence Inc.,  operates a crowdsourcing platform that connects citizens with their local governments on public policy issues and polls. Cities and counties can put a widget for a poll on their website or in a link on a social media post or newsletter, said Nick Mastronardi, a co-founder. Read the full story here.