There are quite few small manufacturers who do not as yet, have a presence on the Internet. A great pity, as even a price list of their products would be very useful.
However, I am listing below some of the companies whose products I have used, or who have been recommended by friends of mine.
I have included as many details as I have. Although they do not have a web presence, some at least have an Email address.
If anyone reading this has any updated information,