Many would argue there are 2-3 agencies that fit this description but the most famous and clear cut is the NRO: https://en.m.wikipedia.org/wiki/National_Reconnaissance_Offi...

Spun off to another subsidiary seems like the game here!

Not just CIA. Whenever military industrial complex or bankers want a make over, defers litigation risks or just conceal ownership, they just create a subsidiary, spun it off with another name and/or hide the everything behind client attorney privileges.

It also gives the public a memory wipe. Very clever technique indeed.

I thought NRO was funded separate from CIA not spawned off from

I encourage you to read more about them.

The NRO was not spun out from the CIA. It's a separate organization. The wikipedia article you link to suggests that it was not created as part of the CIA.

If you remove government budget from an NRO and it cease to exist, it was never really a non-government organization, it is technically a government organization.

I believe you've got confused between the NRO (National Reconnaissance Office) and NGO (Non-governmental Organisation). The NRO is very much part of the US government.

Wrong article, was reading about NGO. My bad.

They ccreated a few private equity firms so they could get wall street suckers to fund their military and covert adventures.

From the mind of Tom Clancy:

  The Campus operates under the cover of Hendley Associates, a financial 
  trading institution. Hendley Associates is a trader in stocks, bonds, and 
  international currencies, though, it does little in the way of public 
  business and is not known to have any clients. . . . By intercepting 
  communications between the CIA and NSA, the Campus is able to take advantage 
  of SIGINT they gather and cross-deck to the CIA. This gives The Campus 
  currency-trading troops the best sort of insider information, which enables 
  the organization to make a ton of long-term money without anybody really 
  noticing. . . .

https://jackryan.fandom.com/wiki/The_Campus

> Would love to read up on this spun out operation

It's called Treadstone, there are a few movies about it.