Who is the maker of the bicycle frame?

There's actually still quite a few. The most famous and the one with the longest history has to be Profile Racing in St. Petersburg, FL. Starting in 1978, they've manufactured bikes for companies like Hutch and was the first to manufacturer a 3-piece crankset specifically for BMX. Profile also had made cranksets for Hutch, GT, Redline and other companies.

There are a few smaller companies out there still today: Sick Child (just Freestyle), DK, FIT, etc.