AC Humko P.O. Box 343, Memphis, TN 38101 800-344-8656  901-766-7855

BatchMaster Software Corp. 1500 Pacific Coast Hwy., Ste. E, Seal Beach, CA 90740 310-799-8888 310-799-8833

BYK-Gardner 2435 Linden Ln., Silver Spring, MD 20910 301-495-7150 301-585-4067

Colortec 28 Center St., Clinton, NJ 08809 908-735-2248 908-236-7865

Cornell Institute of Food Science 114 Stocking Hall, Ithaca, NY 14853 607-255-7915 607-254-4868

Industrial Laboratories of Canada, Inc. 95 Townline Rd., Tillsonburg, Ontario, N4G 4H3 Canada 800-668-1958 519-688-0644

Infometrix, Inc. P.O.Box 1528, Woodinville, WA 98072 206-441-4696 206-441-0841

Arthur D. Little, Inc. Acorn Park, Cambridge, MA 02140  617-498-5147 617-498-7288

Medallion Laboratories 9000 Plymouth Ave., Minneapolis, MN 55427 800-245-5615 612-540-4010

Micromeritics One Micromeritics Dr., Norcross, GA 30093-1877 770-662-3633 770-662-3696

The National Food Laboratory, Inc. 6363 Clark Ave., Dublin, CA 94568 510-828-1440 510-833-9239

Northland Laboratories 1810 Frontage Rd., Northbrook, IL 708-272-3413 708-272-2348

Pert Laboratories 145 Peanut Dr., P.O.Box 267, Edenton, NC 27932 919-482-4456 919-482-5370

R-Tech P.O. Box 116, Minneapolis, MN 55440-0116 800-328-9687 612-486-0837

Ralston Analytical Laboratories Checkerboard Square, 2RS, St. Louis, MO 63164 314-982-1310 314-982-1078

III Sigma 

TPC Labs 330 University Ave. S.E., Minneapolis, MN 55414 800-400-2390 612-330-8266

Warren Analytical Laboratory P.O. Box 650 "O" St., Greeley, CO 80632 800-945-6669 303-351-6648