See also:

• Business: Chemicals: Specialties: Lubricants  (163)
• Science: Technology: Mechanical Engineering: Tribology  (27)

• Center for Tribology - CET - Center For Tribology, Inc. is a tribology testing laboratory and a provider of tribology test instrumentation.
• Ducom - Manufacturer of standard and custom designed material testing equipment. Includes sample product list.
• Falex Corporation - Offers a complete line of tribology test equipment and services for friction, wear, lubrication, and abrasion studies.
• Falex Tribology NV - A tribological testing laboratory and manufacturer of tribological test machines and specimens for sale
• Imperial Scientific Industries - Imperial offers tribology and petroleum test equipment as per ASTM, IP, DIN and other international standards.
• Koehler Instrument Co., Inc. - Designs and manufactures tribology instruments for friction and wear testing conforming to ASTM, IP and related test methods as well as custom designed products.
• National Tribology Services, - Offers testing of gearboxes, pumps, compressors, engines, turbines, hydraulics, greases, and used lubricants, oil analysis laboratory
• Paragon Scientific - Viscosity standards and refractive index standards.
• Plint and Partners Ltd - Tribology testing division.