AMI PRESCO, Applied materials, ADE, Adept, Advanced Energy, Aehr, Aerotech, Alcatel, Alessi, American Optical, AMI, ASM, APT, ATCOR, Balzers, Bausch & Lomb, Benchmark, Bio-Rad, Blue M, Branson, Bridgeport, Bruce, BTU, Buehler, Cambridge, Canon, CHA, Coherent, CPA, CTI, CVC, Dage, Daymarc, DEHAART, DEK, Delta Design, Despatch, Di-Arco, Diffusion Pump, Dionex, Disco, Dynapert, Dynatech, Eaton, Edax, Edwards, EG&G, Electroglas, ENI, Espec, Fischer, Florod, Fluorocarbon, Forma Scientific, FSI, FTS, Fuji, Fusion, Gaertner, Gast, GCA, Genus, FTI, Gyres, H. Streckfuss,
 Haake, Headway, Heraeus, High Vacuum, Hirst, Hitachi, Horiba, HPS, HTG, Hughes, HVA, Hybond, IBM, Imtec, Inficon, Instron, Insystems, Integrated Technology, IPC, Joel, K&S, Karl Suss, Kasper, Kenco, Kevex, Kinetic, KLA, KTC,
Lab-Line LAM, Lambda, Lapmaster, Lauda, Leco, Leitz, Lepel, Leybold, LFE, Liebert, Lindberg,  Litton, Lumonics,
Macbeth, Mactronix, Markem, Mass Flow, Matrix, McBain, MCT, MECH-EL, Meyer Burger, MGI, Micromanipulator,
Millipore, MKS, MRC, MPM, MTI, Nanometrics, NAPCO, Neslab, Nicolet, Nikon, NRC, OAI, Olympus, OSI,
 Pacific Scientific, Gasonics, Peak, Pennwalt, Perkin Elmer, PHI, Philips, Polycold, Polyflow, PRI, Prometrix, PTC, PTI, Puma, Q Corp, Quantronix, Ransco, Reichert, RF Plasma, RTC, Rudolph, SCI, SCP, Semifab, Semitool, Shinkawa,
Sierra Instruments, Slee, Sloan, Solitec, Spectra physics, Speedfam, Spex, SRT, SSEC, STC, STI, Stokes, SVG,
Symtek, Tamarack, Taylor Winfield, Technics, Tegal, Tencor, Tenny, Therma-Wave, Thermco, Thermonics,
Thermotron, Trio-Tech,  Twin Cities, Tylan, Ultratech, Ulvac, Union Carbide, Unitek, Unitron, Universal, UPA, UTI,
VAC, Varian, Veeco, Vickers, Vision, Vitronics, VWR, Watkins-Johnson, Web, Wild, Yield, Yield, Zeiss, Zygo.