I hear the Geometric has been bought from it's founder. He had moved on to bigger things. He became a Judge I believe. Screamin' dropped off the face of the Earth but they never made anything I liked. And there is always the infamous Lunar Models. I think they have pased through more hands than a female pilot at a Tail Hook party. (Sorry. THat was in bad taste.)
The Japanese resin kit industry is insanely producive. But like all the companies I listed above, you could hardly call them "Garage" companies.
Randy Bowen has gotten really big as well. I remember his work for Dark Horse ages ago. It shouldn't be too long before ho goes all "Tod McFarlande" on us with affordable Chinese painted sculpture/toys.