I was surfing for headphones on Amazon, when to my surprise, I found some fairly high-rated headphones.
But initially, I thought the the first Company, A, made these headphones, I was surprised to find that while search elsewhere, another Company, B, made the exact same headphones, just under a different brand.
So I searched elsewhere, and found that the real company that made the product was Company C, that actually designed and produced the product, but that Company A and B had simple just put their name on the headphones.
What in this case would I call Company A & B? What would be the name for Company A & B? They didn't make the product, but they sell it under their name, despite the fact that Company C sells it. Would I call it like a "shell" company? Not sure what's the word to use here.