Founderfit by Koble - See how you compare to VC-backed founders.
TLDR Options - Guesstimate the possible value of startup options
Unicorn Nest Dataset - Free dataset of VCs investing in seed and series A+ rounds
Ennerate - Automated business valuations for 'Main Street' companies
China Company Check - Check and verify the Chinese company
MicroAcquire - A free & anonymous startup acquisition marketplace