Tellingly, when I interviewed with Intercom their "culture fit" manager was extremely rude and condescending, and constantly interrupted. Everyone else was polite, but if this is the person who gets to decide "yeah, they'd fit in here" that's a pretty huge problem.
People turn you down because of managers, not companies, too.
Intercom does a fantastic job with content marketing. I'm not sure how much it reflects reality, though. Again, most of the people I talked to were polite; it was just one extremely off-putting interviewer. I nearly thought it must be some kind of perverse test to see how I handle jerks.
People turn you down because of managers, not companies, too.