When the SpaceX IPO launches, most retail investors will be locked out. The banks, funds, and insiders get in early - while everyone else waits on the sidelines.

But one small infrastructure supplier - a critical piece Musk can't scale the Colossus network without - is still trading well under institutional radar. A new briefing reveals the name and ticker at no cost.

The SpaceX IPO is drawing near, but the real opportunity may lie in 5 lesser-known companies providing the critical infrastructure SpaceX depends on to operate.

Goldman Sachs and Morgan Stanley are reportedly already building positions in one of these names. Another is a resource miner that Elon Musk's broader empire - including Tesla - relies on. Lance Ippolito has detailed all five inside his free SpaceX Investing Blackbook.