The gossip on this coast, where most of their government and corporate overlords live, is much less rosy.
Basically, any civilian agency that gets told it needs a "data science" or "predictive analytics" capability from the executive Cyber initiatives just buys what the law enforcement and intelligence guys bought. Silicon Valley is also widely believed to be superior to the local scene.
These factors drive a cycle of government purchase leading to sweetheart maintenance deals leading to product validation leading to more government purchases.
Their "forward deployed engineers" are what the rest of us call "software development consultants." Their tool stack is a series of pretty visualizations over a typical data lake setup.
It is designed to be accessed by techs (analysts) and not devs. The essential algos were forked from Paypal's fraud detection code. Their products (Gotham, Metropolis, etc.) are all derivatives of that initial decade-old effort.
Palantir is still just a $250 mil revenue, zero profit startup. It runs on private investment cash that it will never be able to afford to repay, absent continued infusions of revenue from a confused government patron.
Their CEO announced in 2013 they won't IPO because disclosure rules for public company reporting requirements would make "running a company like [Palantir] very difficult".
My sense is that they'll never IPO because it would collapse the company.