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Thomas Van Groningen serves as Regional Sales Manager at Certis Biologicals since April 2024. Prior to this role, Thomas held various positions at Van Groningen & Sons, Inc., including Irrigation/Plant Health Manager from January 2016 to April 2024, where responsibilities involved scheduling irrigation for high-value crops and designing fertility programs based on soil and plant tissue analysis. Thomas also served as Ranch Supervisor/Field Operations/PCA, coordinating large harvest crews and managing irrigation and fertilizer programs across 1000 acres. Experience includes a sales representative role at JR Simplot from March to October 2015, and a field scout position at Helena Chemical Company from February 2014 to March 2015. Thomas's early career began as a PCA Trainee at Van Groningen & Sons, Inc. from June 2008 to September 2013. Thomas holds a B.S. in Crop Production Management from California State University, Fresno, earned between 2011 and 2014.