The Investor Tracker is designed to simplify your research of investors for your startup. It's a tool to aim your networking research and efforts.
However, Slidebean has no relationship with the investors in the Investor Tracker. Their profiles are public and the feature does not entail introductions or a direct connection.
If you manage to get their contact, as well as for other cold emails you may need to send, check out this video we did in collaboration with our friends at DreamIt Ventures, with some advice and good practices to have more success when cold-emailing.