Corporations

The Beacon Group
Cadmus Communications
Coherent, Inc.
Elsevier
Energy Conversion Devices, Inc.
General Atomics
General Electric Company
GE R&D Center
Herbert V. Friedman, Inc
Herbert L. Jamison & Co. LLC
IBM Corporation
Keithley Instruments, Inc.
Lucent Technologies
NEC Corporation
Physics Academic Software
Spectra-Physics, Inc.
Verizon (formerly GTE)
Vernier Software
WebAssign
Xerox Corporation