TURNER Designs, JT BAKER, CARLO ERBA, MOL LABS, FISHER, ALDRICH, MALLINCKRODT, SIGMA, MERCK, HACH, BBL, OXOID, VIDCOL, BAYER, PYREX, NALGENE, SCHOTT, VILAB, 3M, MILTON ROY, ORION, DIES, BRAND, OHAUS, THOMAS, PARR, COLE PARMER, CHEMETRICS, GELMAN, PRECISION, MILLIPORE, PANREAC, ACROS, ORBECO, MFS, LABCONCO, PALL, SUPELCO, BEL-ART, GAST, BOECO, S & S, ADVANTEC, Entre otros.