What are the companies you looked into in England? I'm not sure if you're referring to British firms that were active in the 19th century or to something else, but one I know best that was active during this period was the firm of William Hill & Son, (I believe they later merged with another company of this period, Norman & Beard, to form Hill, Norman and Beard). The most famous example of their work currently in existence is probably the famous monster at the Sydney Town Hall in Australia. They also built the original organ at the Melbourne town Hall, and it was rebuilt by their merged incarnation after the original was destroyed by fire in the 20s. Their are many other famous works of theirs all over the former British Empire. Sadly, the company is no longer in existence as far as I know. Other 19th century organ builders who's works I know of, and are spread out all over the Empire, are Rushworth & Dreaper (still in existence), Bishop & Son (I believe they are still around), Harrison & Harrison(still around), and Henry Willis & Son (still around). There must be very many more that I'm not aware of. I hope these correspond to the period you're interested in. If not, I'm sure they'll still be of use to someone. However, I know little about German builders aside from what is on the web. Though I'm not an organist, the history of these British builders is of interest to me, because I've come into contact with some of their near century-old works in my native land, a former British colony on who's organs I'll start a topic about in the near future. Cheers!