Hach Water Testing and Water Quality Analysis Systems - Offers portable, laboratory and on-line instrumentation for testing important water quality parameters.

International Ag Labs, Inc. - Offers laboratory services, product development, consulting services for agronomic situations from quality of crop to production problems. Minnesota.

Agdia Inc. - Offers test kits, reagents and laboratory testing services to detect plant pathogens. USA.

Fertile Ground Books - Books for farmers, ranchers, market gardeners, nursery and agricultural professionals. California.

JBK Soil Sampler - Produces soil sampling instruments, methods of use and benefits are described. USA.

ABC Organics - California firm providing consultancy services, expertise, and products for organic growers.

FOSS - Danish company provides analysis solutions for quality and production control of food, beverages, feed, chemicals and pharmaceuticals.

LabDiet - Provides food and provisions for animals in research settings.

Accutest Agricultural Services - Provides service to the agricultural community through the analysis of farm soils, lime, manure, home and garden soils, livestock feeds, plant tissue, and water quality. Ontario.

Genetic Identification Services - Developer of custom genetic markers resources, studies and research applications. California.

Agvise Laboratories - Offers testing services for soils, water, and plant tissue. Website has a number of technical and informative articles on soil. United States.

TerraMetrics Agriculture, Inc. - Develops models to determine crop yields from remotely sensed data, to monitor vegetation condition and model crop yields. Kansas, USA.

Sinar Africa - Producers of moisture meters for use on grains, silage, and other measuring equipment for agricultural use. South Africa.

LEEC Limited - Manufacturers of laboratory incubators and mortuary equipment, plant growth cabinets, monitoring systems. UK.

Central Testing Laboratory Ltd. - Offers testing of plants and foodstuffs for toxins, chemicals, organisms.

Trece, Inc. - Providers of insect management and control products. California.

Samex - Manufacturer of plastic dissuasive sheathes for the protection of trees and vines from rabbits, deer and weedkillers.

Spesfeed - Provides professional technical service to livestock producers and the animal feed industry. South Africa.

C&P Press Greenbook.net - Reference information about agricultural chemicals used in crop production.

Professional Seed Research, Inc. - Seed testing lab providing quality, pathology and breeding services for seed companies. Illinois, USA.

Thorvin, Inc. - Providers of kelp for mineral suppliments in animal and human foods.

Farming Discussion Forum - Online shopping for equipment and supplies (US orientated), discussion fora, classifieds and online information links.

HarvestMaster - Company information about seed research and crop management tools, services and support provided and contact details.

Upright Inc. - Sells sorbants and spill response carts, kits and trailers. Product information and contact details are given.

Berckes Manufacturing - Scales for testing fertiliser and grain densities. Minnesota.

Trace Biotech Ag - Analysis systems for alcohol and glucose using biosensors. Benchtop analyser and processcontrol. No sample pretreatment.

American Ag-Tec International - A global company marketing its proprietary agricultural, biotechnology, seeds, potato minitubers, and value-added foods worldwide.

RapidEye AG - Commercial satellite-based remote sensing system and geo-information system.

Water Works America - Information about absorbent crosslinked polymers, capable of absorbing water and water-soluble nutrients and fertilizers and their uses. Ordering information and contact details are given.

Davis Instruments - GroWeather Weather Station specifically for growers. Includes ability to calculate evapotranspiration for irrigation scheduling, degree-days for pest management and crop maturation, and heat index for safety.

Dynamax, Inc. - Provides instruments for growers, including sap flow sensors, irrigation controls, soil moisture sensors, photosynthesis, phytoremediation and plant water relations measuring equipment. US.

The Woodland Stewardship Company - Data capture service for forestry and tree inventories, mapping and surveys, using laser technology and GPS. UK.

Propagation Technology - Offers micropropagation for its applications in the fields of horticulture, agriculture and conservation. UK.

Venture Laboratories, Inc. - A private contract and research facility providing service to the food, animal feed and bio-remediation industries.

Agri-Analyse Agricultural Laboratory - Price list, discount information, and a customer feedback area from this Quebec firm.

Agricola Services Ltd - UK company provides software, bespoke material and multimedia for agriculture and training.

Agricultural Research Service Information - Images of plants and animals, pests and diseases, crops.

Earth Systems Solutions - Soil moisture monitoring and sampling instruments for soil science, agricultural, irrigation, and environmental applications.