About MDB

How You Can Join Us

Become an MDBH shareholder

  • Purchase MDB shares – NASDAQ: MDBH

  • Long-term growth in MDBH share price

  • Priority pro-rata access to new spin-out Big Idea companies and public company financings

  • Potential stock or cash distributions as public venture portfolio matures

Open an MDB Direct Account

  • The first brokerage and online investment platform built for public venture investing
  • Access to participate in public, venture-stage MDB investment opportunities
  • Personalized, concierge-level services from a dedicated registered representative and service team

Submit Your Big Idea

  • Since 1997, MDB has been enabling big ideas from inventors, entrepreneurs, and universities to get to market through our unique public venture capital model.
  • Submit your Big Idea for our consideration using the button below.