Kubota - They told me they are the only tractor that is 100% made in the USA. High resale value. He mentioned some other mfg use plastic fenders and/or hoods, but Kubota uses all steel. Who on earth would put plastic on a tractor? There should be a law.....
Kubota manufactures 100% of Kubota parts in factories all over the world. Kubota does not buy components from outside suppliers, tires excepted.
Unless things have changed, FELs and Backhoes are manufactured solely in Georgia/USA and exported to Kubota assembly plants worldwide.
Kubota has three large manufacturing/assembly plants in Georgia/USA.
There is PLENTY of plastic around the operating station on Kubota tractors, however, not the body panels.
It has a new national parts distribution center under construction in Kansas, also the location of Kubota owned Land Pride. Kubota has purchased part of Vermeer. I do not know where Vermeer is located.
Kubota's USA Sales Office is in California. I have read it is moving to Kansas.
According to Farm Machinery News, Kubota has 46% market share in 80-horsepower and under tractors in the USA. This number, however, is about a year old.
Every one of the companies you have spoken of is a public company. You can buy Kubota stock on the NYSE under the symbol KUBTY. Stock ownership in all these companies is diffused internationally. You can easily Google Kubota's 2017 annual report, in English.
You are wasting your time with this stuff. In most dealerships only the senior people, who travel to attend Kubota dealer meetings, would have accurate information on these topics; and it is unlikely you would reach them on a casual telephone call.
Wikipedia and Google Search will serve you better.
For most new to tractors a quality dealer, reasonably close, available for coaching, is important. Dealer proximity is less important to others, well experienced with tractors, who perform their own maintenance. My kubota dealer is six miles away. I feel my local dealer continues to add value to my equipment.