The Cavity Insulation Guarantee Agency
Provides independent guarantees for cavity wall insulation fitted in the UK and Channel islands; includes a listing of registered installers, and how to use the scheme.
Suppliers of insulation and drylining materials to the trade and general public.
Polyurethane spray foam insulation for residential and commercial properties. Providing service in the UK and Northern France.
National Insulation Association
Offers extensive information for both construction industry professionals and householders on insulation types and issues, with contractor finder.
Manufacturers of insulation materials spun from naturally occurring volcanic rock; includes a guide to their product and its applications, for homeowners and professionals.