ATS RheoSystems
   Produces rheometers and viscometers, dynamic mechanical thermal analyzers, dynamic shear rheometers, and provides rheological applications training and technical service and support.
   http://www.atsrheosystems.com/

Anton Paar Gmbh
   Producer of a variety of instruments and contract manufacturer of high-precision mechanical parts; production of the first electronic density meters.
   http://www.anton-paar.com/

Bohlin Instruments
   Rheology instruments and viscometers.
   http://www.bohlinusa.com/

Caleva Process Solutions Ltd
   Producing spheronizers, extruders, rheometers and associated equipment for pharmaceutical, neutraceutical, agrochemical and chemical industries.
   http://www.caleva.co.uk/

Camtel Ltd
   Instrumentation for surface chemistry and rheology, as well as consulting and training.
   http://www.camtel.co.uk/

Dare Instruments
   Manufacturers of kinematic viscometers for used oil analysis.
   http://www.dareinc.com/index.htm

Freeman Technology
   Instrumentation for characterising dry and wet powders, measuring powder flow and powder characteristics. .
   http://www.freemantech.co.uk/

Future Digital Scientific, Asia Inc.
   Surface tension tensiometer, separation and stability analyzer, viscometer and contact angle meter.
   http://www.fdsc.com.tw/

GÖttfert
   Rheology for the plastics and rubber industry manual, semi-automated and robotic laboratory, as well as on-line and at-line rheometers. There is an American branch.
   http://www.goettfert.com/

Lord Corporation.
   Manufacturers of Magneto-Rheological Fluids and related products.
   http://www.mrfluid.com/

Magna Projects
   A company specialising in Rheology and other materials testing techniques.
   http://www.magna-projects.com/

Maple Instruments
   DMTA is our specialilty, we provide Rheology services that include new and used instrument sales, rheological sample testing and servicing of most brands of rheometers.
   http://www.mapleinstruments.com/

Marimex
   Canadian manufacturer of process viscometers and other in-line fluid analyzers.
   http://www.marimex.cc

Paar Physica USA
   Manufacturers of rheometers and viscometers
   http://www.paarphysica.com/

Physica Messtechnik GmbH
   Produces and distributes measuring and control instruments for rheology, viscometry and rheometry.
   http://www.physica.de/

Reologica Instruments AB
   Manufacturer of rheology and viscometry instrumentation.
   http://www.reologica.se

Reologica Instruments, Inc.
   Manufacturer of research grade Rheometers for the serious Rheologist.
   http://www.reologicainstruments.com/

Research Equipment
   Viscometers and viscosity solution measuring equipment.
   http://www.research-equipment.com/

Rheology Advantage
   A provider of consulting, testing, research and development services and training in rheology.
   http://www.rheologyadvantage.com/

Rheology Testing Laboratory
   Rheology testing services for fluids and solids using state of the art instrumentation.
   http://www.fluiddynamics.com/

Rheonet.de
   Rheology, rheometers, applications, standards, rheology literature.
   http://www.rheonet.de

TA Instruments
   Manufactures thermal analysis and rheology systems.
   http://www.ta-thermalanalysis.com/

Thermo Haake
   Supplier of rheometers, viscometers, lab scale mixing and extrusion systems, thermal analysis and precision temperature control circulators and water baths.
   http://www.thermohaake.com/

Trilogica - Thermal Analysis and Rheology
   European suppliers of thermal analysers, rheometers, accessories, spare parts and consumables. Also provide training and consultancy services
   http://www.trilogica.com/