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 About Our Brokerage 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 Open An Account 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. Submit Your Big Idea Up Next | Contact >