Not necessarily. The police don't automatically have access to everything when they kick down a door. The warrant needs to state explicitly what they're after.

If the data specified by the warrant is suddenly and intentionally encrypted then they still have to provide that data or argue the obstruction angle in front of a judge. Just because a company is incorporated doesn't mean they lose all rights.

Is it even possible that the police has a warrant against a company like Uber that doesn't include data found in the very office they are raiding?

If it's not stated that they are raiding the office to grab data, what could the raid even be for?

Yes, warrants are often specific. You can comply with a warrant with encrypted data

So warrant say "Uber should hand over data about transfers in/out from the companies bank account" and Uber can then hand them over a password protected CSV and say "You didn't ask for data you could read" and the police should just be like "Hah, you got us! We'll come back with another one!"?

no, you are missing my point. Im saying uber can encrypt all their data, decrypt what is asked for, and hand it over what was specifically asked for.

They don't have to hand over their entire database, and as a customer, I wouldn't want them to.

They don't have to let them grab whatever the want and root around in data not covered in the warrant.