Meopta are no longer made but there are plenty of them in stock so you'll find them for a while.
Durst has ceased to manufacture a lot of models, concentrating in the Lambda printers, but I wonder if the 1200 is still availlable. (a beast !)
Odyssey sales in Great Britain may still produce the De Vere, and you may still find the German Dunco.
I second the advice about Kienzle they made a clone of the Leitz Focomat II (it was designed by them, I think) and some larger size.
Reinhel may still be in business but these are large and heavy "things" for large format...