Sports Turf Research Institute STRI
- Bingley, West Yorkshire, United Kingdom. Independent research and technology organisation in turfgrass research and agronomic advice.
- http://www.stri.co.uk

Dirt~n~Turf, Inc. Consulting
- Dirt~n~Turf Consulting, Inc. is an agronomic consulting firm, specializing in golf and sports turf, nurseries and greenhouses, landscape architecture, construction, maintenance, soil testing, and site inspections. Hinckley, Illinois.
- http://www.dirt-n-turf.com

ProCare Turf Lab
- Turf diagnostic clinic specializing in turfgrass disease diagnosis, also nematode identification. Diagnosis and recommendation reports are usually sent within 24 to 48 hours after receipt of the sample. Kingston, Washington.
- http://www.procareturflab.com

ABC Sports Turf
- Consulting services, new athletic field design and construction, turf renovation, sports turf management services, laser grading, professional topdressing, infield mix, Diamond Pro Infield Conditioner. Houston, Texas.
- http://abcsportsturf.com

K.B. White Company Inc.
- Irrigation design consultant, with over 25 years of experience, specializing in golf course, athletic field and commercial sites. Pittsford, NY.
- http://www.kbwco.com

Golf Engineering Associates
- Specializing in golf course irrigation, CAD blueprints, GPS mapping, water features, filtration, pump stations and water treatment. Active internationally; we offer foreign language plans and specs. Specialists in Latin America.
- http://geagolf.com

James Connolly Consulting
- Golf course and sports field development guidance and agronomic and environmental consulting for new and existing projects. Soil and nutrient testing, insect, disease, and weed management programs, and fertility recommendations. Spokane, WA with project
- http://www.jcgolf.com

Golf Irrigation Design
- Consultants in design of irrigation and sprinkler systems for golf courses. CADD plans, GPS as built drawings, computer analysis simulation testing, and bid comparison analysis.
- http://www.golfirrigationdesign.com/

Turf Diagnostics and Design
- Laboratory testing, consulting, and design for the golf, sports fields, and landscape industries.
- http://www.turfdiag.com/