Get to know the people behind the work. Explore their services, see where they operate, and start a conversation about your acres.
Alphabetical · explore services and coverage
New Bremen, Ohio
Ohio laboratory offering chemical, physical, biological, and soil health testing through its consultant network.
Agricultural soil analysis · Soil health testing · Physical and biological testing
Mail-in through consultant network
Public-source listing · Checked 2026-08-24. Confirm availability directly.
Own this business? Claim or correct listingWesterville, Ohio
Westerville lab listed by OSU, Purdue, NAPT and Lawn to Lake for pH, P, K, Ca, Mg and organic-matter tests with farm and garden recommendations.
Agronomic soil fertility · Fertilizer recommendations for farm, home & garden
Mail-in samples · contact lab for forms
Public-source listing · Checked 2026-10-01. Confirm availability directly.
Dwight, Illinois
ALTA-certified independent soil lab in Dwight running standard pH, phosphorus, potassium and organic-matter tests for Illinois growers.
Agronomic soil fertility
Contact lab for sample submission
Public-source listing · Checked 2026-10-01. Confirm availability directly.
Grimes, Iowa
Grimes lab, IDALS-certified as Farmers Edge, testing soil fertility, carbon, health and tissue for farmers, retailers, researchers and homeowners.
Agronomic soil fertility · Plant tissue · Soil carbon analysis · Soil health package · Lawn & garden soil test
Mail-in or drop-off samples · results in a few days
Public-source listing · Checked 2026-10-01. Confirm availability directly.
Farmer City, Illinois
Farmer City nitrogen specialists who run their own ISNT and nitrate soil lab and build variable-rate nitrogen plans from field rate studies.
Nitrogen rate recommendations · Illinois Soil Nitrogen Test lab · Soil nitrate testing · Variable-rate nitrogen plans · Crop production research
Central Illinois; soil samples accepted at its Farmer City lab
Public-source listing · Checked 2026-09-30. Confirm availability directly.
Monett, Missouri
Southwest Missouri lab in Monett testing soil with lime and fertilizer recommendations, plus forage, plant tissue, water and manure.
Soil fertility tests with lime and fertilizer recommendations · Plant tissue analysis · Forage analysis, NIR and wet chemistry · Water and manure analysis
Mail-in or drop-off in Monett · weekdays
Public-source listing · Checked 2026-09-30. Confirm availability directly.
Fresno, California
Fresno laboratory pairing soil, plant and water analysis with agronomy and irrigation advice for California growers.
Soil, plant and water analysis · Crop nutrition consulting · Irrigation management · Soil salinity advice
California consulting and laboratory sample submissions
Public-source listing · Checked 2026-10-02. Confirm availability directly.
Millersburg, Ohio
Independent Millersburg lab (the former Holmes Lab) testing soil, water, feed, manure, compost and tissue for farmers and homeowners; drop box on site.
Agronomic soil fertility · Water & bacteria testing · Feed & forage analysis · Manure & compost analysis · Plant tissue & mycotoxins
Mail-in, carrier or drop-off samples · after-hours drop box
Public-source listing · Checked 2026-10-01. Confirm availability directly.
Clear Lake, Iowa
Clear Lake soil lab and agronomic consultancy for producers of any size; IDALS and NAPT list it as Rock River Laboratory's Clear Lake site.
Agronomic soil fertility · Soil test recommendations & crop removal · Agronomic consulting
Mail-in samples · online results login
Public-source listing · Checked 2026-10-01. Confirm availability directly.
Santa Paula, California
Santa Paula agricultural and environmental laboratory with five California locations, field sampling services and online access to laboratory results.
Agricultural laboratory testing · Water quality testing · Field sampling and sample pickup · Dairy testing
Five California laboratory locations · confirm sample submission
Public-source listing · Checked 2026-10-02. Confirm availability directly.
Athens, Illinois
Athens lab serving Illinois crop and livestock producers and home gardeners with soil, tissue, manure and heavy-metal testing; NAPT-certified yearly.
Agronomic soil fertility · Plant tissue & leaf analysis · Livestock manure analysis · Lawn & garden soil test · Heavy metals & stalk nitrate
Mail-in samples · Illinois manure-compliance testing
Public-source listing · Checked 2026-10-01. Confirm availability directly.
Milford Center, Ohio
Milford Center crop consulting firm with a patented soil sampler and in-house certified lab, serving about 150,000 acres in Ohio and nearby states.
High-density soil sampling · In-house certified soil lab · Agronomic consulting · Drone scouting · Yield trials
Ohio, Indiana, Kentucky, New York and beyond
Public-source listing · Checked 2026-09-30. Confirm availability directly.
