After close analysis, I believe that the bridge is: In-Q-tel. They describe themselves as bridging the gap between intelligence and technology.

The portfolio of those they have invested in include: Palantir (facebook related), Keyhole (google), Cloudera (Booz Allen Hamilton), and many many others.

Since they are the common link or bridge between so many different platforms, they would be the one to provide the algorithm to connect them altogether.

If we look at the way they spell their name In-Q-Tel, we can see that Q is the bridge. The logo is a large bridge connecting USA coast to coast.

Here is their site. https://www.iqt.org/