this is how it works.
after spending hundreds of hours crawling through every nook and cranny of this website, a viewer becomes familiar with what's here.
Your question is quite simple.
Now ask yourself, could there be other manufacturers that exist and not listed????
Where would one find them, espeically if they are nearby???
tell us what you want to build? we really like pictures or sketches too.
maybe someone else here can guide you.