The a16z Show · Friday, September 25, 2026
a16z has launched CoSign, a new product designed to build a comprehensive directory of companies and people based on professional reputation. The platform aims to go beyond traditional resumes and endorsements by capturing nuanced signals of trust and credibility within the startup community. CoSign seeks to address the information asymmetry in talent discovery and investment decisions.
“We're super excited to announce CoSign, a product that is around professional reputation for the startup community.”
“And really just trying to be the most comprehensive directory of companies and people.”
“And I think that that's why we've seen so many people try to build this over the years. And I think that we're really excited about being able to do it now with CoSign.”