Mackie John K. P.
Madsen Willy B.
Mallinder Frederick Paul
Martin Manfred
Masuzawa Minoru
Materiaux De Construction International
Mathes Nikolaus
McCabe Gregory Michael
McLelland Lorne J.
McMeekin Samuel
Meye Reinhold W.
Mitchell Michael Bruce
Miwa Tomohiro
Moneymaker Robert R.
Moplefan S.p.A.
Morgan Allan C.
Morikawa Nobuhiko
Muolon Oy
Myers Bigel Sibley & Sajovee P.A.