It looks like it is an American Made equipment company. The "Granite" part of the name is ambiguous, and a poor choice for a brush grapple.
When reading about Everything Attachments, they talk about various steel alloys (AR450 tines).
However, the steel choice is completely absent from the TopDog pages. Are those bottom teeth solid or hollow?
A single photo for all of the Granite grapples including 4 different sizes?
On the tooth bar (another product), TopDog does list, "Cutting Edge Material: C1055" which is a heat treated steel.
But, alas, no mention of it with the grapple.
No serrations on the bottom teeth.
Anyway, I'd like to see a little more effort with the website creation, but overall the grapple doesn't look bad.