Well, it’s a very slippery thing these clearances. If you will be a CSRA investigator working the NBIB contract (and if you are working Intel investigations for CSRA this info may be different), you will likely have a ‘favorably adjudicated’ investigation to a TS level, but at that stage have not been granted a clearance. To my understanding, clearance granting after a favorable adjudication is initiated at the request of the sponsoring (Agency, Contractor, etc…) and is generally reflected in one of the systems like JPAS, Scattered Castles, and the soon to replace JPAS, DISS (Defense Information System for Security). More info about some of them here: https://news.clearancejobs.com/2016/11/06/scattered-castles-jpas-clearance-documents-stored/
You could be granted a clearance with a favorably adjudicated investigation that was completed by NBIB by a sponsoring company if you are looking for new IC career paths. My experience is that there is less known about how the process works, who is responsible for updating or changing your status in any of the systems, what agencies recognize the others completed investigations, or which ones reciprocate each others already granted clearances than there is known. And that’s how it’s supposed to be because THIS IS SECRET STUFF AND THE GOVERNMENT CAN’T MAKE SECRET STUFF SIMPLE, LOGICAL, OR EASY TO USE. Whew! Anyway, I feel that you could make a leap from a BI job to an IC career but communicate your intended path to a person that has completed just that process or a good POC at that dream job/company to get feedback and guidelines. Good luck to you. Now we can let everyone chime in with there experiences on getting clearances, which I am sure will be varying results.