There are some brokers such as https://equityzen.com/ and https://forgeglobal.com/ which try to match buyers and sellers and take a cut, much like a real estate agent. - Source: Reddit / 23 days ago
At https://equityzen.com/ you can invest directly in private equity and startups, starting from 10000$. - Source: Reddit / 4 days ago
And they have their own in-house startup stock market where you can trade stocks in startup companies. Startengine.com itself is a startup and this is a new industry, but they allow you to buy and sell shares of their own company on the site, so I bought some in that as well, as I think this seems like a promising investment honestly. - Source: Reddit / 2 months ago
IDK if this helps but the stock itself is startengine.com and they have their own in-house secondary stock market for startups that their stock trades on. I can give the full offering link if needed. - Source: Reddit / about 2 months ago
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