A US based lighting company. Manufacturer of a wide range of conventional lighting fixtures ranging from simple PAR cans to the Shakespeare line of high performance ellipsoidal reflector spotlights.
I consider Altman equipment to be professional grade, compared to the prosumer equipment produced by L&E, or the junk that is produced by American DJ.
Major highlights of their line include
Shakespeare - A high performance elipsoidal reflector spot light. This fixture is very similar in functionality to the ETC Source 4
360Q - A more traditional 6 by elipsoidal reflector spotlight. Most theatres and rental houses that stock Altman gear will have a lot of these.
65Q/165Q - A good old fashioned 6" fresnel fixture. The optics are pretty much identical between them, the difference is that the 165Q has a screw feed lamp position adjustment, while the 65Q has the simpler nut and tray setup.
PAR64 - Just a traditional PAR64 fixture, but manufactured to a high quality standard, with good strain relief, smooth edges etc.