Integrated Ag Services, Inc. was founded in 1998 by the husband and wife team of Steve Tyrrel and Lisabeth Beatty.  Over these 20 years, our family business has grown to employ 7 licensed staff and provide a comprehensive and integrated range of agricultural services to Montana and Northern Wyoming.

Steve has a lifetime of appreciation and knowledge of the land. Before starting IAS, Steve worked as a ranch hand and a ranch manager on cow-calf operations in Central Montana. 

Lissa Beatty is the president of the company, and she carries the logistical load of the company, handling accounting, payroll, logistics, and more.

With 25 years experience working on and around ranches, Steve has a wide range of professional certifications in weed control, range management, and grazing. He has been a certified commercial applicator since 1999, and has classifications in Ag Plant, Right of Way, Aquatic, and Turf and Ornamental weed control.

Community Involvement

Steve is active in his community, and has been a supervisor on the Lower Musselshell Conservation District for 8 years, and is the chairman of the Soil & Land committee chair for the Montana Association of Conservation Districts.

He is proud to have been appointed by the Governor to the Montana Invasive Species Council. Initially he was appointed to the advisory council as an industry representative, and now serves as an agricultural representative on council.

In addition, Steve has experience as a Wildland Fire Fighter. He is a Certified Engine Boss and Strike Team Task Force Leader and he is the cofounder of the Dean Creek Fire Department.

Professional Associations

  • MT Weed Control Association
  • Range Management Society
  • MT State Fire Chiefs Association