There is a 'coincidence of' interests between the companies. [=the companies share the same interests]
It was mere/pure/sheer 'coincidence' that brought them together so far from Chicago.
It was no 'coincidence' that he quit his job at the bank a day after the robbery.
(..) that's how he does it. I've seen it, okay? I have visions. Visions of people that I'm supposed to help. I've seen his next victim. It's you. There are no coincidences. I was supposed to see you, to find you. And now I'm supposed to save you. - Romaine in fridge three. - Okay. (..)1998 TvShow: Charmed Title: The Truth Is Out There... and It Hurts Season: 1 Episode 8