Building healthier soil since 2009
Mortensen AgriSupply was founded on a simple conviction: that great farming starts with great soil, and that growers everywhere deserve honest, lab-tested inputs and dependable equipment to work it.
Why I started Mortensen AgriSupply
“I grew up around farms and watched too many growers struggle to find quality organic inputs they could trust. I started this company to change that — to deliver manure and fertilizer that’s tested, consistent, and fairly priced.”
“Today we serve farms on multiple continents, but the mission hasn’t changed. Whether you need a single tote or a full container, you get the same standard of quality and service.”
— William Mortensen
Our values
Soil-first
We believe healthy soil is the foundation of every harvest. Our products are graded to build organic matter, not just feed a single crop.
Transparency
Lab analyses, certificates of origin, and honest specifications accompany every order — no guesswork for the grower.
Reliability
Farmers plan seasons around our deliveries. We hold ourselves to the schedules and quality our customers depend on.
Global stewardship
From Iowa fields to farms across Africa, we move nutrients responsibly and support sustainable agriculture everywhere we ship.
Milestones
2009
Founded by William Mortensen
Started as a regional composted-manure supplier serving Midwest row-crop farms.
2014
Equipment division added
Expanded into spreaders, tractors, and implements to serve customers end-to-end.
2018
First international exports
Began containerized shipping of organic fertilizer to North American and African markets.
2024
40+ countries served
Grew into a worldwide supply partner with dedicated export logistics.