R & D Systems, Inc.
R-Tec Technologies, Inc.
R-Tect, Inc.
R. B. Cybernetris (1970) Ltd.
R. E. Hart Labs, Inc.
R. P. Cargille Laboratories, Inc.
R.G.B. Laboratories Inc.
R.J. Hamer Limited
Ra Ho-Won
Raaijmakers Christiaan E.
Raatz Peter
Rabet Farroch
Rabillier Jean-Marc
Rabinovich Arnold Z.
Rabinovich Georgy L.
Rabinovitz Andre
Rabitsch Hermann
Rabolt John Francis
Rabone Kenneth L.
Raby Julie Ann