There is no magic secret in The structure of Paragon ,the companies you refer to are most likely Collaterised Mortgage Securities usually refered to as CMS -with a no after them -example cms9 0r cms6 Go to the Data protection Register and key in there main postcode,B91 3QE and you will see a list of approx 56 companies.(posted 8462 days ago)Then go to the Companies House postcode and key in the same post code should get around 100 plus some you may have to search seperate. The company in the States is most likely Morgan Guaranty Trust company of New York.
Should you wish to search on the Directors you may find that Three have around about at last count 140 companies APPROX at that address the rest only a few. many are only in the Plc section which is in there annual report You will also find many dormant companies and many which have had many changes of names over the years -you may find that you are being chased by LOM Recoveries although this is a Dormant company is used to chase there Debtors and is listed in the Data Register.
This may sound very confusing but i do hope it helps you as i have several shares in the company, thought it was only fair to let you know as you have posted two emails to this site and seem confused. Hope this helps.
Regards
Charles Twford