To the veterans out there - if you think that chain of command stops being a thing out of the military, you will be sorely mistaken here. As much as the senior leadership likes to insist that it doesn't exist at Grunt Style, middle management turns around and insists that it does, and it's very important, and you have to go through them for everything. If you don't, they will resent you, and they might even write you up for insubordination.
I would stay away from Marketing and Sales if you can. The senior leader there is totally absent; traveling all the time, and at the office, he only speaks to a certain clique (who consider themselves "special" and won't work with you easily because of their "status"). Doesn't matter how hard you work or if your numbers are great; he doesn't care, and you're an inconvenience to him because you're not persuading and kissing up to him at every turn to pay attention to you. That attitude translates well to his team, who are well known in the company for their catty, petty bickering among themselves. Newbies aren't made welcome at all; I've heard very loud conversations from my desk where people are pooling money to see if a new hire would last six months in the company, laughing and demeaning them behind their back. I've seen vets arrive who are dealing with depression or PTSD, thinking that being around vets would help them, turn around after two or three months because of these sincerely horrible people. Just stay FAR away.