re: The 5th Branch of the Federal Government

In-Q-Tel is the business investment arm of the SeeIA. They openly invite tech firms to present a business plan in order to potentially win "grants". They openly release the firms that win the cash but do not disclose the amounts.

"In 1999, the CIA created its own venture capital investment firm, In-Q-Tel, to fund promising start-ups that might create technologies useful for intelligence agencies. But the inspiration for In-Q-Tel came earlier, when the Pentagon set up its own private sector outfit.
Known as the ‘Highlands Forum,’ this private network has operated as a bridge between the Pentagon and powerful American elites outside the military since the mid-1990s. Despite changes in civilian administrations, the network around the Highlands Forum has become increasingly successful in dominating US defense policy.
Giant defense contractors like Booz Allen Hamilton and Science Applications International Corporation are sometimes referred to as the ‘shadow intelligence community’ due to the revolving doors between them and government, and their capacity to simultaneously influence and profit from defense policy. But while these contractors compete for power and money, they also collaborate where it counts. The Highlands Forum has for 20 years provided an off the record space for some of the most prominent members of the shadow intelligence community to convene with senior US government officials, alongside other leaders in relevant industries."

Medium.com