- Allegheny Industrial Electrical Co., Inc.
117A Flint Rd, Oak Ridge.....423-483-9619
- American Magnetics, Inc.
112 Flint Rd, P.O. Box 2509, Oak Ridge.....423-482-1056 fax 423-482-5472
- Cryomagnetics, Inc.
1006 Alvin Weinberg Dr. Oak Ridge.....423-482-9551
- EG&G, Inc.
801 South Illinois Ave, Oak Ridge.....423-483-2121
- EOL, Inc.
1055 Commerce Park Dr., Oak Ridge.....423-482-4239
- Elo TouchSystems, Inc.
105 Randolph Rd, Oak Ridge.....423-482-4100
- Instrument & Technical Systems, Inc.
P.O. Box 6018, Oak Ridge.....423-483-5715 fax 423-482-9639
- ORDELA, Inc.
1009 Alvin Weinberg Dr., Oak Ridge.....423-483-8675 fax 423-483-8404
- Oxford Instruments
601 Oak Ridge Turnpike, Oak Ridge.....423-483-8405
- Resources Electronics, Inc.
106 Union Valley Road, Oak Ridge.....423-481-3393