I have been using Rokform. On the pricey side, but very rugged and the mount system is very versitile. I love the built-in niodymium magnet. Anything metal is my mount.
I work in the packaging industry, and they have literally every size box, in any quantity, on demand. That being said, our clients purchase everything. We don't have much say in what vendors they choose.
Fun fact: I throw away (recycle) 2-5 full size Uline catalogs a day, even though it says on every packing slip CUSTOMER REQUESTS NO CATALOGS.
BBB is not a govt organization and has no legal authority whatsoever. They are yelp with a legitamite-sounding name.