BISON AG SUPPLY & SERVICE - Key Persons


Brad Seidel

Brad has been operating his own commercial spray business since 2009, and started custom harvesting shortly after that. After helping his dad manage the family business for 12 years and build up the agronomy department there, Brad moved down the road, quite literally, and started Bison Ag, where he loves the stress of farming and the joy of working with customers and sales reps alike. In his spare time, you can find him working or researching for work.

Zach Grygiel

As a native of Florence, SD, where he grew up farming, raising horses and working cattle, it wasn't far for Zach to travel to SDSU where he received a degree in agronomy in 2019. After leaving us sad when he didn't take the job the first time around, Zach came back to the west side of the state where he decided he couldn't resist the open prairie, wildlife and the great people. He's the perfect fit to the Bison Ag operation and the Bison community. We couldn't be happier to have him here.