The number everyone can trust.
GrainMX is the standard for grain inventory verification across the agricultural supply chain—delivering accurate, repeatable measurement made simple enough for every operator to run themselves.
To set the global standard for trusted, accessible grain inventory verification across every link in the supply chain that feeds the world.
We make grain inventory verification accurate, repeatable, and simple for every operator.
A method built in the field.
GrainMX's method was built in the field. Founder Zack Clark has spent the better part of a decade measuring grain at every kind of facility — country elevators, river and terminal sites, farmer-owned co-ops, and on-farm storage. Corn, soybeans, spring wheat, edible beans, barley, sunflowers: if it's stored, it's been counted.
He built the company around a stubborn problem: the same facility could produce a different number from one visit to the next, depending on who measured and how. The fix was never a fancier tool — it was a method you could run the same way every time, anywhere, and stand behind. GrainMX formalized that method in 2021.
That repeatable method — measured bin volume, documented, and signed — is the standard GrainMX runs on today. The work is independent and fully insured, with professional liability and workers' compensation, and built for long-term relationships across the agricultural supply chain.
Rooted in Reality
We follow the numbers, wherever they lead.
Stand Straight
We tell the truth and keep our word, even when it's inconvenient.
Repeatable by Design
We think systematically.
Radical Accessibility
We make the work simple enough that anyone can follow and run it.
A standard, anywhere in the lower 48.
We travel for the work, and our travel pricing is published in plain English before you book. The method doesn't change with the ZIP code — measured bin volume is the same approach state warehouse agencies rely on across billions of bushels.
An independent number is the one nobody has to take on faith.